HOWTO: Overclock C2Q (Quads) and C2D (Duals) - Guide v1.6.1 - Page 7 - Intel

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need some help with overclocking my pc
i'm new at this so if anybody has the time to guide me i would be very grateful

my rig

Quad Q6600
EVGA 790i ULTRA SLI
4 GB DDR3, PC-10666, 1333 MHz, PATRIOT

i tried to overclock on my own but it crashes every time
i am desperate for some answers

thanx

Message quoted 1 times

Reply to nedamgol

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tacohead wrote :

Most good boards will offer several fsbram dividers. Some common ones are listed below. Assuming that you’re using a 333 MHz FSB the ratios are:
Code :

1. FSB : DRAM
2. 1:1 = 333 MHz : 667 MHz
3. 4:5 = 333 MHz : 833 MHz
4. 2:3 = 333 MHz : 1,000 MHz
5. 5:8 = 333 MHz : 1,066 MHz
6. 3:5 = 333 MHz : 1,111 MHz
7. 1:2 = 333 MHz : 1,333 MHz

Now, if you’re running @ a 400 MHz FSB, the ratios become:
Code :

1. FSB : DRAM
2. 1:1 = 400 MHz : 800 MHz
3. 4:5 = 400 MHz : 1,000 MHz
4. 2:3 = 400 MHz : 1,200 MHz
5. 5:8 = 400 MHz : 1,280 MHz
6. 3:5 = 400 MHz : 1,333 MHz
7. 1:2 = 400 MHz : 1,600 MHz

You can calculate these yourself with this formula:
Code :

1. DRAM Final Clockrate = (2 x FSB)/Divider

Example, 2/3 divider @ 400 MHz FSB: (2 x 400 MHz)/(2/3) = 1,200 MHz

This part is confusing me a lot. I have e8400 and OC'd to 3600 using 400fsb with 9multiply. My ram is ddr800 6400 so I have to use 1:2 ratio right? Please enlighten an idiot.

9x400 = 3.60 GHz

The fastest divider you can use without overclocking the RAM is 1:1

DRAM Final Clockrate = (2 x FSB)/Divider

=(2x400)/1
=800 MHz

If you wanted to use a 1:2 divider, the math becomes:

=(2x400)/(1/2)
=800/0.5
=1,600 MHz

No way can you hit that speed!

Reply to graysky

wishmaster420 wrote :

I am not new to oc'ing..back when you used jumpers for this lol..anyway here is my system

Asus P5N-E SLI
Nvidia 680i chipset
Q6600@2.4 Ghz
OCZ Gold DDR 2 pc6400 5-5-5-15 (2x 2048) Dual Channel (800Mhz)
E-VGA Geforce 8800gt 512
2xWD Raptor

The best i can get is 2.81 Ghz
The stock vcore is 1.39v
The stock Mem Vcore is 1.8v

My question is what are your Vcore settings for the q6600, in your guide you listed 1.1375v@2.4ghz and 1.2625@3.0 Ghz..And was it stable at 3.0Ghz

Vcores aren't something that are identical for each system... you have to stress test to find the min. stable vcore for you specific system at a given set of conditions (9x333 for example).

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Reply to graysky

ispy wrote :

wait, how can I get a 1:1 ratio with fsb of 333 and some 800 ram?

Simply set the divider in your BIOS to 666.

Reply to graysky

nedamgol wrote :

need some help with overclocking my pc
i'm new at this so if anybody has the time to guide me i would be very grateful

my rig

Quad Q6600
EVGA 790i ULTRA SLI
4 GB DDR3, PC-10666, 1333 MHz, PATRIOT

i tried to overclock on my own but it crashes every time
i am desperate for some answers

thanx

Dude, you need to post more details such as vcores for the MB, RAM, and CPU. My guess is that you need to up them (NB vcore, CPU Vcore, maybe VTT). Have a re-read of the guide.

Reply to graysky

i hope this ia all you need to know if there is sometnig else please do tell me

Reply to nedamgol

If core temp seys the temp are at 69*C after 1 min is it safe to keep running prime95? (get the same result 7*440-7*475 FSB and alvays shut down prime95 manualy when it hits 69*C)Or should i keep lovering the FSB? Havent canged any other settings

This is my specs

Corsair TW3X4G1333C9DHX 2x2048MB (tot. 4096MB) DDR3 1333MHz

Arctic Cooling MX-2 Thermal Compound 4gr

Asus P5K64 WS iP35 4DDR3-DIMM 2PCI 4PCIe SATA Raid Audio DUAL GB-LAN Socket775 ATX

Intel Core 2 QUAD Q6600 2.4GHz 8MB FSB1066 Boxed (with cpu-cooler!) Socket 775 (G0)

Windows Vista Home Premium 64-bit DVD SWE OEM

ZEROtherm Nirvana NV120 CPU Cooler -775/AM2

A sidemounted fan that sucks air

And a 750W powersuply

Reply to drago87

Has anyone overclocked the Q9550 yet? I'd like to bump her up to 3ghz...

Message quoted 1 times

Reply to belo

tduic wrote :

Well, it's fixed, but still not correct.
You don't divide the stated frequency because of Dual Channel, but because of Dual Data Rate (DDR) at which the memory operates. Dual Channel is just the physical way to further enhance the data troughput, i.e. to increase the data bandwidth between the RAM and CPU, but it has nothing to do with the frequency. Let's say it doubles the number of lanes on a highway, while DDR doubles the speed limit. Although, at least on Intel chipsets, several tests have revealed that real life benefit of dual channel configuration is really neglectable, in the range of few percents.

I think this is correct - DDR, DDR2 and DDR3 all operate at twice the FSB. To calculate the bus frequency off the memory frequency rating, you just divide by 2.

DDR-266 <-> FSB @ 133 (http://en.wikipedia.org/wiki/DDR_SDRAM)
DDR2-800 <-> FSB @ 400 (http://en.wikipedia.org/wiki/DDR2_SDRAM)
DDR3-1333 <-> FSB @ 533 (http://en.wikipedia.org/wiki/DDR3_SDRAM)

graysky wrote :

Well, if this is true, then DDR (that is DDR1) memory would also have a 2x relationship to FSB, but it does not...

*snipped image*

Perhaps it's because it's DDR-400?

Note that the peak transfer rate is calculated off the memory clock, and not the FSB - thus DDR memory with a 200MHz memory clock rate would have the same peak transfer rate as a DDR2 memory with a 100MHz memory clock rate. I think peak transfer rate = memory clock * prefetch buffer size * 8, where 8 is number of bytes transferred in each operation. The prefetch buffer for DDR is 2, DDR2 is 4 and DDR3 is 8 bits.

Otherwise, great guide graysky.

Reply to kheldar

Okay there is just a little confusion on my part about a few things and there are some settings I can't find in my BIOS. First here are my computer specs:

Motherboard:
XFX nForce 780i 3 way SLI Intel 775 socket
FSB clocked to 1480 right now
8G DDR2 (I'm only using 4 right now)
I'm only running 2 Graphics cards at the moment in SLI mode

CPU
Intel E8400 Dual Core 3.0G clocked to 3.33 with the FSB clock mentioned in the mobo above

Graphics Card 2 - XFX GeForce 8800GT 512 DDR3_SDRAM (Running in SLI mode)

Cooling Fan
Zalman CNPS9700 LED Air Cooled

Power Supply
Thermaltake 750W

Tower
Thermaltake Armor MX Full Tower

corsair mem - DDR2 800 2 - 2 gig sticks = 4G

I can only clock this CPU with this mother board by adjusting the FSB on the mobo according to tech support at the factory.

Here are some questions:

I don't see anywhere in my BIOS to set the ram divider ratio. I have a setting for my memory frequency which is set to max at 800 for my DD2 800 corsair memory sticks.

Spread Spectrum- I have 3 choices and only one is disabled in the factory settings

HT spread spectrum - should I enalbe or disable and what does it do? No info when highlighted

PCIe Spread Spectrum - should I enalbe or disable and what does it do? It says it's a selection for nForce MCP when I highlight it.

SATA spread spectrum - should I enalbe or disable and what does it do? This one was disabled as a factory setting and only says SATA spread spectrum selection when highlighted like that is supposed to be helpful.

I can't find these anywhere in my bios can someone help me with what they might be called with my system?:

CPU TM fuction - I think my BIOS calls this CPU Thermal Control and if that is correct then i have choices - TM1 - TM2 or both.

TM1 being thermally throttled but cutting active processor clock cycles
TM2 being thermal throttling is achieved by reducing the cpu multiplier and cpu core voltage
TM3 is both TM1 and TM2 working together

What is the best choice for me on thermal throttling - 1 2 or both?

PECI - can't find anything like this
PCI clock syncronization - can't seem to find anything like this either

Reply to Mediator67

Quote :

Running in 1:1 mode is termed, “synchronous mode.” If you use a higher frequency, you’re running is so-called “asynchronous mode” which offers marginal speed advantages at the price of more heat and power consumption on a C2D/C2D Quad-based system for most users. Depending on your chipset, running in an asynchronous mode may require more vcores to some of your motherboard components such as the NB, IHC, and/or FSB Termination (more on these later).

I'm planning on doing a build within the next 2 weeks. This is the motherboard I've picked.

ASUS P5Q Pro LGA 775 Intel P45 ATX Intel Motherboard with an E8400

The case I want is an Antec 900 which seems to have some decent fans in it.

I just wanted to clearify, According to the thread if should get 800 mhz (or pc2 6400) rather then the 1066 mhz rated memory so I can achieve "synchronous mode"? I would like to fiddle with as little as possible so I can achieve 3.4 to 3.6 ghz (Not looking to go any higher then this) on my over clock. With the ratio of 400 mhz fsb and 1066 mhz memory speed (not sure what that ratio is) would I be able to run my system stable without increasing Vcore voltages?

I've also been told that a Wolfdale processor should do 3.6 ghz easy with just a fsb modification and I shouldn't worry about Vcore settings and other stuff in my bios. Is there any truth to this?

Edit: I was also wondering how much of an impact the difference in speed in my games would be between running memory at 800 mhz as opposed to 1066 mhz?

Message edited by spellbinder2050 on 09-25-2008 at 09:29:28 AM

Reply to spellbinder2050

Can I overclock the Q6600 to 3 GHz with Intel DG31PR? 400W PSU, no change in voltage, stock cooler? I have a good air flow to my case and 4 fans

Reply to rags_20

hey guys , im planing on doing my first overclock so im a bit noob at this i got confused reading the guide and just want to get some stuff clear , when i first up the fsb ( i want to overclock to 3.0ghz) can i st it at 333 or do i need to move it up slowly. im rly confused about memory stuff to i beliv emys ettings atm r 5-5-5-18 im lost with the 1;1 ratio stuff and also the voltage increase option for my ram it says +0.2v ai dont no the current voltage fpor my ram eaither does pirtty sure i got all options unlocked in the bios too im on a p35-ds3p q6600 g0 , Anothetr thing that concerns me is the voltage settings that u need to play around with i dont no what to set that at either jsut wanted ot be shure befor ei attempt oc seen the guy who wrote the guide ahs a diff mobo than me

Reply to methix0r

HELP!! I was thinking about OC'ing my new computer Q6600, 680i and simply ran the prime95 program to see how it was doing at stock before I did any mods and it took the computer to 100% and then I tried to get prime to shut down and it would not so I simply hit restart. It froze in the start up DOS screen with F2 F10 listings. I had downloaded the latest BIOS update but never loaded it so I figured I would re-set the mobo.... dont have instructions but I read on here that removing the battery for a wile would do so... and I did it. Now it takes 2 min to get past the windows DOS f2 f10 screen and then slowly starts. seems to run normally after it gets gowing. Loaded the new bios and reset the bios options to optomal (F9) and it still takes forever to start. Did my running prime 95 F### somthing up? Help! .... Thanks! Tim

Reply to cessnac182golf

I don't understand the FSB: .DRAM ratio part. I mean setting the DRAM clock part.

I have E7200 @ 2.53GHz [9.5*266.7] and DDR2 Apacer PC2-6400 800 bus ram and gigabyte G31 mainboard.

Suppose, I want to change the cpu FSB to 333 in order to gain [333*9.5]= 3.16GHz. VID=1.1750V when idle.

So, if I change the cpu FSB to 333 remembering the ram is DDR2 PC2-6400, what should be the final DRAM clockrate?

From CPUz-
DRAM Frequency = 400MHz
FSB: .DRAM = 2:3

Message edited by tusku on 12-03-2008 at 09:23:00 PM

Reply to tusku

This thread is awesome. I am new to overclocking and managed to get my E4600 2.4GHz to 3.2GHz stable and confirmed with 12hours of Prime95 Torture Testing. Real Temp showed temperatures hitting a max of 55 degrees (Celsius) so it's running pretty cool considering the level of overclock(33%). Idle temps are 22 degrees in the morning and about 27 degrees in the afternoon (It's Summer in New Zealand right now). Load/Temp in games gets to 35-45 degrees. So everything is humming along nicely and I benchmarked with 3DMark Vantage and got massive improvements (don't have the numbers in front of me at the moment).

I'm replacing this E4600 with an E8500 (E8600 is too expensive) and I plan to get it up to 4.2GHz +

The motherboard I'm using is Asus P5QC, it seems to be doing the job.

Just thought I'd say thanks

Thanks!

Reply to Helious

I have a pretty simple question, but I'll elaborate my situation. First time overclocker, but experienced in building PCs and I work in electronics.

Is the restriction on CPU Vcore to prevent overheating only, or are there other dangers in going over the 1.3625v on my E5200?

Additionally, I have 3 different voltages to look at. Which one should I base my decision on?

BIOS
Windows - Idle
Windows - 100% Load

I'm trying to push this $84 as far as it will go without loosing the 'magic smoke'.

Reply to Cuandoman

over 1.3625v = less lifetime, regardless of heat... still you have over 2 years of life in that. i have my e5200 @ 1.4vcore. 1.45 is fine also

an update to the guide: e5200's and e5300 added to list?

Reply to V3NOM

hi, thanks for the guide very helpful.
i was wondering if you could help me with a stability issue im having...

ive OC'd my E8400 to 4ghz and its 7hours stable on orthos, but it fails on Farcry 2 after just a few minutes (@ 3.8ghz and below its fine)

im using a P5Q-E
xpert vision radeon HD4870 512mb (8.12 driver)
4gig of OCZ PC2-8000 (1000mhz)
thermalright ultra 120 extreme and artic silver 5

My temps after 30 mins of orthos are about 52C @ 4ghz 1.33V vcore

i can even play unreal tourdament 3 whilst running orthos at 4ghz but when i play farcry 2 it crashes
do you know why?
thanks in advance

Reply to OMGiTzzFATAL

RAM unstable? if farcry 2 uses tons of RAM, and orthos is only small fft'ing...

Reply to V3NOM

no, sorry my bad
i didnt tell you i did the blend stress test for 7 hours which stesses RAM and CPU.
ive recently tryed changing the GPU, as my comp only crashes in games but i had the same problem with a 9600GT

i also tryed upping the NB voltage from 1.28 to 1.40v and it helped alot but its still not stable.

any1 got any suggestions for SB and NB voltages.

maybe this is just farcry 2 being the buggy sh*t that it is, but its so confussing that it plays farcry 2 fine at 3.87ghz(430x9)

Reply to OMGiTzzFATAL

ok
i can get it to run at 4ghz on orthos small fft's and run 3dm06 at the same time.
BUT
when i try orthos blend (tests RAM aswell) and 3dm06 it crashes even though i ran memtest until 100% coverage and it fond no errors- im so confussed, Memtest says its stable, but orthos and 3dm06 say its not. argh!!!!
does increasing the voltage of the RAM increase stability?

i need some advice please!!

Reply to OMGiTzzFATAL

hi. i'm totally new to overclocking. i'm planning on overclocking my Q6600 to 3.0Ghz. my motherboard is ECS GF7050VT-M5

i can't see the settings the tutorial are mentioning. there's no option for changing the CPU Vcore but i can change the NB voltage, memory voltage, memory timings, and FSB speed. also, i can't see the option for setting the PCI Express frequency to 100 MHz. i read that i should set it to 100 to avoid it from overclcoking proportionally with FSB

can i still overclock my system?

is the CoolerMaster Hyper TX2 CPU cooler good? it's affordable and i'm planning on buying it even if i can't overclock

here is my specs

Intel Core 2 Quad Q6600 2.4GHz
GeForce 9800GT 512MB DDR3
ECS GF7050VT-M5 nForce 610i
Kingston 2GB DDR2 PC6400 6-5-5-17
Samsung 250GB SATA
CoolerMaster Exteme Power Plus 460 Watts

Message edited by nrg500 on 01-07-2009 at 10:39:53 AM

Reply to nrg500

belo wrote :

Has anyone overclocked the Q9550 yet? I'd like to bump her up to 3ghz...

Look at my sig. Also, I'll post my cpu-z screen shots when I get home. What mobo, ram etc are you using?

OK, so my sig is not showing up again.

Message edited by mexpedip on 01-14-2009 at 12:46:29 AM

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Reply to mexpedip

This is great stuff man, I haven't found such a thorough guide yet

Reply to ericjohnson1981

I am running a Q9550 on a striker II extreme (790i ultra) with 9-9-9-24 1333mhz ram.

I have just begun my experimenting with overclocking (im keeping it safe for now (3.54ghz) as i am still on stock cooling), and i have a few questions

My board will let me do the ratios or simply unlink memory and fsb, but i was wondering if it was possible to keep them linked and overclock my memory?

If not, what does it mean when my board supports up to 2000mhz(OC) DDR3 ram?

Reply to laurencewerner

This post has been very informative if you have a Phoenix BIOS such as an Asus mobo. Has anyone done a guide for the Award BIOS used in the GiGabyte GA-EP45-UDXX type boards?

I have an E8400 processor and I want to overclock my board but the Award BIOS terms are different than the ones in the initial Phoenix BIOS tutorial.

If you can direct me to any tutorials for the Gigabyte boards I would be most appreciative.

This thread just got too long to read every post and I finally just gave up and asked.

Yes I am a noob is it that obvious??.... :pt1cable:

Reply to donfm

What settings do i need to get 3.0ghz from my E6600 on Abit aw9d-max ?

I am a total noob

Like what do i need to change in my bios to get this speed?

------------------------------ Abit AW9D-Max mobo--Intel Core 2--Duo E6600--OCZ Vendetta 2 cpu cooler--EVGA 8800 GTS 320mb Factory O/C GPU--4GB OCZ PC6400 ReaperX HPC Performance DDR2 800MHz, CL 5-4-4-15

Reply to Goucho

i need suggestion pls, im using E7300 n want to OC it to at least 3,2ghz.

i already bought xigmatek HDT SD964, so temp wont be quite a problem. I wanna ask any of u who also using same proc as mine, what FSB n multiplier that suit best for my need? btw im using 2x2gb DDR2 @667mhz with Asus P5K mobo, thanks alot

Reply to mokuj1m

here are my settings for the q6600 g0 with air cooling

mines been running stable at 3.4 for 6months,
i'm a noob at this but these work for me.

if one of the voltages does not have the same listed try changing the next one first and the voltage should apper in the last list

Reply to bdragon122

Hi everyone,

I'm working on overclocking my system which is of these specs:
Intel Q6700
Gigabyte Motherboard Model EP35-DS3P
CORSAIR DOMINATOR 8GB (4 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) 5-5-5-15-2T timings

I, like most people get lost on the memory settings for overclocking.

I understand the Q6700 has: 10.0x266 = 2.66 GHz which is 266mhz per core x 4 core to equal 1066mhz

Also that most overclockers of the q6700 get into the 3.4 - 3.6 range on air cooling when using this processor.

It seems that a lot of people keep saying to use the 1:1 ratio for the ram as a starting point which, if i understand right, underclocks your ram to the same speed as the FSB to add stability while your finding your cpu's vcore voltage.

What I don't understand is what memory timings I should be trying to use. When I looked at the formula in the OP and I used his equation I got 533mhz for the fsb (CPU Speed = CPUM x FSB). Something doesn't seem right about that so that is where I get lost. In his example he says: "My first quad system was based on a Q6600 at 9x333=3.00 GHz (25 % over factory). I found the max it can go when cooled with air is 9x370=3.33 GHz (39 %)" so when I get a number like 533 it doesn't look right. Can anyone try to explain this again so I can understand it?

Reply to Shookies

For DDR3 memory, you said that you divided by 4 to find the maximum FSB that will work. So if i have 1600 MHZ RAM (Which i believe is the highest), the highest FSB i can have is 400? And with a Q9550 locked at 8.5x multiplier, does that mean i cant go past 3.4 GHZ?? that doesnt make sense...

Reply to falconzfan007

Guys, I have been reading posts about how I can overclock an e5200, all of them said it is very easy to overclock it at a stable 3.0 Ghz. But I kept on playing with my FSB, I tried 240x12.5(fixed mult). I have my fsb:ram at 5:4 and everything is in auto or not unlocked in my board.Orthos and occt kept giving me error reports.I was able to make it stabe at 2.974 Ghz, but going higher is impossible, I really want to hit the 3.0 ghz speed. Can somebody possibly help me with this. This are my pc specs: 2.5 Ghz e5200(stock), 2Gb ddr2 Apacer(pc 6400), Ge force 8400 gs(512mb), P55G mobo(Pc Chips), Chipset Ge force 7050, southbridge nforce 610i. Any help would be greatly appreciated. Thankyou

Reply to scoobiders

bro i am overclocking my pc to fsb 250 only and still my pc hangs.

I can seems to find the problem.please help

Reply to foltor

bro i have over clock my pc but it does not start and hangs so i have to clear my CMOS everytime i clock it..is it because my DDr2 Ram is 667,i set my clock speed to 220fsb and ram to 1:1 other then that my motherbord does not allow to change
i am using MSI 945G chipset (MS-7507)

Please help

Message quoted 1 times

Reply to foltor

foltor wrote :

bro i have over clock my pc but it does not start and hangs so i have to clear my CMOS everytime i clock it..is it because my DDr2 Ram is 667,i set my clock speed to 220fsb and ram to 1:1 other then that my motherbord does not allow to change
i am using MSI 945G chipset (MS-7507)

Please help

Can you change your vcore? it is in the bios "pc health status" if you can, try raising it to about 1.3, this would be enough, and as for your ram, try lowering the ratio to about 5:4 or 3:2 or try to raise your nb voltage a bit, sometimes the ram cant stand your overclock,. My mobo doesnt have the unlocked feature of changing the vcore voltage, so my only choice left was to do vid pin modding, Ill discuss this to you after you try the steps I told you. Let me know what happened. Can you give your specs?

Message edited by scoobiders on 04-30-2009 at 12:56:58 PM

Reply to scoobiders

i have check i cant change my Vcore coz its locked

my pc spec is

Motherboard : MSI 945G MS-7507
Prosessor : Intel Pentium E2200 2.2GHZ
HS : Coolermaster Hyper 212
GPU : Saphire HD 3650 256MB DDR3
RAM : Kingston 2GB 667 DDR2 X 2
HDD : WD 160 GB Sata + 250 GB WD SATA
Display :HP L1506
OS : VIsta Ultimate SP1

PLease Help...i want to play with it.i heard that i can go till 3.0GHZ

Message quoted 2 times

Reply to foltor

foltor wrote :

i have check i cant change my Vcore coz its locked

my pc spec is

Motherboard : MSI 945G MS-7507
Prosessor : Intel Pentium E2200 2.2GHZ
HS : Coolermaster Hyper 212
GPU : Saphire HD 3650 256MB DDR3
RAM : Kingston 2GB 667 DDR2 X 2
HDD : WD 160 GB Sata + 250 GB WD SATA
Display :HP L1506
OS : VIsta Ultimate SP1

PLease Help...i want to play with it.i heard that i can go till 3.0GHZ

Reply to scoobiders

foltor wrote :

i have check i cant change my Vcore coz its locked

my pc spec is

Motherboard : MSI 945G MS-7507
Prosessor : Intel Pentium E2200 2.2GHZ
HS : Coolermaster Hyper 212
GPU : Saphire HD 3650 256MB DDR3
RAM : Kingston 2GB 667 DDR2 X 2
HDD : WD 160 GB Sata + 250 GB WD SATA
Display :HP L1506
OS : VIsta Ultimate SP1

PLease Help...i want to play with it.i heard that i can go till 3.0GHZ

I see, read thru this thread: http://forums.guru3d.com/showthread.php?p=2933913. You might want to read carefully, I had the same situation as you are now, I have an e5200, Im running it now at 3003 Mhz. Take note, the voltage pin mod for cpu is not easy, ...For tin foil you can use aluminum foil, and for the tape, a scotch tape would do the job, those are the materials needed to do modding. Since you want to play with it, you might also think of changing your video card, these days, 512 mbs are usual component of a gaming rig.. Good Luck!! Let me know what will happen..

Message edited by scoobiders on 04-30-2009 at 02:33:13 PM

Reply to scoobiders

thank you bro really appriceated...

Reply to foltor

hey im new to OC but i got this q8400 and tried to get it to 3.2 for the longest..
i finally decided to change the multipler to 7 and up the fsb to 500 anyway this suckka is up to 3.5 and i want to know if my temps are okay and is cpuz and core temp good programs for showing voltage on the cpu in the bios i have it set to 3.000 but in core temp is shows as 2.75 or something.. is that correct ?

Message quoted 1 times

Reply to BITCHFACE

Hello all...

I am having some trouble getting my FSB past 450-465 area. Thing is, I want to link/sync wth RAM @ 2000mhz, which gives a bus of 500 X 4= 2000 X 9(multiplier) 18000 and then divided by 4(cores) equals my target of 4.5Ghz. I don't think it is cooling problems since my temps are normal. My RAM isn't issue either. I think the board takes up to 600 bus speeds, right or no? Anyways, here is my set-up:

EVGA 790i SLI FTW

C2Q 9650 O.C. @ 4.175
(FSB):1856mhz
(Bus Speed):464
(core voltage):1.312/ have tried higher and lower up to 1.4
(FSB voltage): 1.325/ have tried 1.4, but no higher.
(MCP voltage): 1.55/ have tried a bit higher and lower

RAM: OCZ3P20004GK (9-10-10-31 @ 1856 w/ 1.8 voltage), but want to use OCZSLI20002GK for 2000mhz link/sync. RAM checks good with memtest, but cannot get past post with FSB @ 2000. Actually, no higher than 1856.

So, any suggestions??? If anyone will need additional info then I am more than willing. Thanks ahead of time.

------------------------------ 790i SLI FTW
Q9650 @ 4.175Ghz(464*4= 1856)
OCZ3P20004G @ 1856 (9-10-10-31-2t)
GPU: 9800GTX+ w/ SLI
Reply to knightmirror

can somebody help me to OVERCLOCK my CPU? this is my specs:

Intel Core 2 Quad Q9400 2.6 GHz
MSI P45 Neo3-FR
GeForce GTX 260 216sp 896MB GDDR3
Kingston 2x2GB DDR2 800
HEC Cougar 700 Watts

Im a newbie in overclocking thing.i just want to overclock my Q9400 to 3.2ghz. i will be using Cooler Master v8.. need your help guys....

Reply to lyonell1989

Read the guide on the first page of the thread you posted in.

Reply to randomizer

Right....

First of here are my system Specs:

Q6600 (cpu-z says revision G0, stepping B3)
Asus P5n32 Sli Premium
4gb OCZ 800MHz Sli ready!
Tagan 900W
x2 8800GT Palit Super +1. 1GBx2 Sli(removed 1 card to get to Cmos)
1 WDraptor 36GB
1 WDVelociRaptor HLFS 150GB
1 Samsung 500GB
Lg superMulti BluRay Drive
ANTEC 1200
Asus SilentKnight 2 + AC5

1 of the 8800gt's has a Zalman VH1000...Testing to see any benefits

Befor I ditch the 775 platform I wanted to try OCing, Ive done the Gpu befor but I always knew It wasnt going to be easy to do the Cpu and Memory

Ive been reading now for over 4 hours and Have come to a conclusion.

In order for me to over clock without losing the 800MHz that the memory is capable of(400mhz) this means I need a multiplyer of just 7.5 and a FSB of 400... Am I right in saying this is 1:1 with the memory now?

1 think im still not 100% on it the cas latency. at the moment my Mobo tells me its running 5.5.5.2T
But the memory should be running at 4.4.4.1T
I figure im going to to be changing this myself and removing any Auto configs in the bios.
Is there a catch other than heat, when changing Latency's?

Irlyer I went into the Bios to see wether there was a setting for SLI memory, I have only recently installed the stuff (yesterDay)along with the VelociRaptor and for the money I payed I cant see any increase at all. Windows Gives the computer a 5.0 now, befor it was a 5.4. with elexir ram! So i knew something was wrong.
also 3dmarks is lower... not what I want to see!

I tryed the Sli Memory on MAX MEM... and upped the voltage from auto to 2.1 and... well I almost Killed it!, the Bios kept freezing and the memory was scorching Hot. widows wouldnt boot and there was these weird letters that dont belong from our alphabet!

So I read some pages about Sli Memory being a big con and all the name means Is that it overclocks stuff so u dont have to....very inaccuratly!
And I would get the best out of the memory by doing it manualy without SLI MEMORY ENABLED....so basically Sli memory gets its benefits from the rest of the computer all because it has an intergrated board that tells the rest of the Mobo that it as a profile to up the preformance of everything that U already own up alittle

So anyway I came here to fully understand befor The rig goes well and truely down...

Also what difference does PegLink do on fastest, Its says OCs the Pci-e Lane, but is there a noticeable difference in some applications
And why does the PciClock synk have to be 33.33 and Freq:100Mhz

If I get any Kind of reply Soon, Ill post my Vcores and stuff... If I cant use a 7.5 multi then I might opt for 667/666(333) or even 3.6GHz(1:1 400Mhz)(with a new cooler...again...prehapse Water this time)

Wow is that the time....well im off to bed now. Ill check back tomorrow and prehapse try some overclocking, Never know... I might be seeing that I7 befor long!!!

Reply to CabbageGT

Hi there,

These are my system specs:

C2D E6300
MSI P965 Neo
2x512mb DDR2 PC4200
NVIDIA GeForce 7300GS
60gb IDE HDD
250gb SATA HDD
530 Watt Power Supply (Max Power)

These are my CPU-Z screenies:

My CPU is currently roughly at 7.0x200 = 1.86 GHz (Like in the original post) and I want to raise it to 400Mhz to go for 2.8ghz. The thing is I think my ram may be a problem as it is a PC4200 and so if we divide that by 16 we get 262.5. So now I'm thinking of getting this a Kingston 4G kit(2X2G)PC8500 HyperX because it will give me max 531.25mhz. Am I going in the wrong direction by buying these ram? Or am I following the instructions right?

I will also be buying a cooler later on.

I was looking around the BIOS to become familiar with the location of the settings needed for overclocking and I found the cpu frequency option and it says max is 333. I want it to be 400 so my question is that is it max 33 because of my ram or is it because of my motherboard?

Reply to majikfx

BITCHFACE wrote :

hey im new to OC but i got this q8400 and tried to get it to 3.2 for the longest..
i finally decided to change the multipler to 7 and up the fsb to 500 anyway this suckka is up to 3.5 and i want to know if my temps are okay and is cpuz and core temp good programs for showing voltage on the cpu in the bios i have it set to 3.000 but in core temp is shows as 2.75 or something.. is that correct ?
http://i2.photobucket.com/albums/y [...] tled-1.jpg

has anyone got a solution for me

Message quoted 1 times

Reply to BITCHFACE

BITCHFACE wrote :

has anyone got a solution for me

Start a new thread and you'll get more responses.

Reply to randomizer

AWHSOME GUIDE!!

Reply to afq

hi. im using a gigabyte P35-DS3L rev.2 with pios updated to F9, i use 2*1GB apacer with bus 800 DDR2, and Intel(R) Core(TM)2 Duo CPU E4600 @ 2.40GHz CPU, i usually overclock it to 2.7 with RAM bus at 1000mhz. the default multiplyer is 12, and the bios offers no more than that, and clock ratio at 225, i can push it up to 240 with succession, my question is why i cannot make it greater? i mean if i set the clock ratio more than 240, the system will not boot, it turns on for half a second and then turns off, it happens 3 times and then the system boots with everything back to defaults... how can i overclock my cpu in 350 or 36 clock ratio? it makes a 4.1Ghz of frequency, but the system will not boot. and my windows will not boot when i overclock my ram above 800Mhz and cpu over 2.8Ghz, i have vista service pack1, and xp service pack 2, and 3, and linux ubuntu 9.04 installed on my computer, but non of them will boot. what is the problem? and it would be grat if anyone can tell me the best clock and multiplyer freq and core voltages and othes stuff for getting the best resault out of my system. thank you so much.
my system settings:
Motherboard information

Manufacture Gigabyte Technology Co., Ltd.
Model Name P35-DS3L
Version
Serial number N/A
North bridge Device ID=0x29c0 Vendor ID=0x8086
South bridge Device ID=0x2918 Vendor ID=0x8086

BIOS information

Manufacture Award Software International, Inc.
Version F9
Release date 06/19/2009

Slot information

No. Type Bus Device function

--------------------------------------------------------------------------------

1 N/A N/A N/A N/A

Processor information

Name Intel Core2 Duo
Package LGA 775
CPU ID BFEB-FBFF-0000-06FD
Type Intel(R) Core(TM)2 Duo CPU E4600 @ 2.40GHz
Technology 65 nm
Brand ID N/A
Family: 6 Model: f Stepping: d
Ext Family: 6 Ext Model: f

Frequency information

Current frequency 2400.00 MHZ
CPU FSB 200.00
CPU System bus 800.00
CPU Mulipilier x 12.00 (6-12)

Cache information

L1 Data 2*32K
L1 Trace 2*32K
L2 2M
L3 N/A

Performance information

Usage (%) 31
Performance (%) 10

Size information

Physical

--------------------------------------------------------------------------------

Total 2046 MBytes
Available 1391 MBytes

--------------------------------------------------------------------------------

Virtual

--------------------------------------------------------------------------------

Total 2047 MBytes
Available 2006 MBytes

--------------------------------------------------------------------------------

Page File

--------------------------------------------------------------------------------

Total 3938 MBytes
Available 3513 MBytes

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Reply to amireht

Hi, I am posting for the first time. I am from India and I have a Asus P5N ESLI mobo with C2Q 2.4 (Q6600) 4 gb DDR2 Transcend (800 mhz) and 4 GB DDR2 Corsair (800 mhz) total 8 Gb and I have Windows 7 ultimate 64 bit. I have a Glacial 650 W PSU and Zotec GTX 260 PCI card. I have installed a sunbeamtech core contact freezer 92 mm heatsink for my Q6600. I ish to overclock my system to about 3.00 ghz and i am not aware of how to do the same. Guys please help me this, as it is my first attempt to overclock the system. Also for my memory I am using 2gb*2 transcend and 2gb*2 corsair is that safe. Awaiting your reply!!!!!!!!!!!!!!!!!!!!!!!!!

Message quoted 1 times

Reply to hypergamer1231

HOWTO: Overclock C2Q (Quads) and C2D (Duals) - Guide v1.6.1 - Page 7

Forum Overclocking : Intel - HOWTO: Overclock C2Q (Quads) and C2D (Duals) - Guide v1.6.1