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1066 ram running at 800. help please :)

Forum Overclocking : Memory - 1066 ram running at 800. help please :)

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CPU- Phenom x4 9750
Mobo- Asus M3N-HT tri-sli HDMI mobo
Ram- 6GB Gskill 1066
Graphics- ATI Radeon 5870
PSU- Apevia 900W
Case- Sunbeam Transformer
OS- Windows 7 Ultimate

k guys, bought 6GB of 1066 Gskill ram, in CPU-Z says its running 400MHz (x2 800), the FSB to ram ratio is 1:2, and it says 1.8 volts for 532MHz or 800MHz. says 2.1 volts for 1066MHz, how would i get the ram to run at 1066MHz? Do I have to change the FSB to ram ratio to 1:2.5 and put ram on 2.1 volts? is that even possible? any info you got would help, I don't really want to overclock that much i just want to get ram running at advertised speeds that i bought it for.

Thanks
-James

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well I learned today that it might be because your motherboard cannot handle more then 800.
That's the problem with mine (GA- P35-DS3R) though it says with big letters on the box 1066 !!
but It aint happening, and im running 2x2gb kingston pc8500 1066mhz.

CPU-Z says its pc6400 800mhz :S

Message quoted 1 times

Reply to Juvator

hey man, dunno if it will work the same as mine or not, but i just bumped the voltage of the ram up to what it says it should be, upped it by .015 in bios, then set multiplier to make the ram 1066, worked fine for me, hope that helps dude, dont have personal experience with your make of ram, but would guess that it is a similar issue to what i had

------------------------------ gigabyte ga-ma790gp-ud4h
amd tri core 720be at 3.6ghz
4 gig crucial ballistix 1066
Xfx 4890 1gb
Reply to Dacca

Juvator wrote :

CPU-Z says its pc6400 800mhz :S

All 1066 ram will be shown as 800, 1066 ram is just factory OCed 800 ram.

------------------------------ E8400 @ 4.165 Ghz @ 1.280v
8 GB's Kingston HyperX 1066
Modu 82+ 625w
VelociRaptor 150
Reply to RJR

You cannot run more than 4GB of ram if you want 1066Mhz. Anything over 4Gb will default to 800Mhz automatically. This is due to the memory controller (CPU), not the board.

------------------------------ 550 @ 4.0 Ghz 1.425v
BFG GTX 260 (216)
4GB G.Skill @ 960MHz
Thermaltake TP 850w
Reply to OvrClkr

Have you tried manually changing the FSB:RAM ratio in the BIOS to get 1066Mhz? I had to.

Reply to virus015

well that's the problem I don't know how this FSB:RAM stuff works.. I tried looking up things about it.
and I also made another thread about OCing my CPU.

But right now I also still have 2 pc6400 1x1gb 333mhz, next to those 2x2gb's
and he shows them as pc5300.
so I got 6 gig ram total, I did that because I wanted to Play APB which itself requires like 4gigs.
but the overal MHZ is pulled down to 333mhz now.

Reply to Juvator

since i'm not allowed to edit the previous post I'm forced to make a second one.

this is the link to my other topic http://www.tomshardware.co.uk/foru [...] _11_0.html

I hope u don't see it as highjacking the topic
My RAM problem is very similar to yours so I think we can both get the answer here.

and I posted the link for those who feel like helping me out, because untill now everyone has ignored my topic and I really can't do this without u guys.

Reply to Juvator

motherboard can handle 1066 on AM2+ or AM3 socket, which mine is AM2+, ive never heard of only allowing 4GB's at 1066 though, would it be faster to run 6 at 800 or 4 at 1066? and i will jack with the bios settings tommorow and see if i can get it running at 1066

Reply to jms31207

Well as far as 1066, you won't be able to run more than 4GB, meaning you are better off running 6Gb @ 800. You will also be able to raise the FSB, this will raise your RAM speed as well. For example, right now I have my FSB set at 228 (maxes out at 241) and my RAM is currently at 923Mhz.

1066Mhz is not much faster than 800Mhz with lower timings. 1066Mhz Ram is really 800Mhz RAM designed to run at a higher speeds with a voltage increase (unless you have low-volt modules). Another example, I have a set of 2x 2Gb OCZ Platinum that run at 5-5-5-15-24-2T 2.1/2.2v, but my G.Skillz 800 at 4-4-4-12-24-2T 1.9v are actually faster than the OCZ. Hope this helps =)

Message edited by OvrClkr on 11-09-2009 at 04:49:20 PM

------------------------------ 550 @ 4.0 Ghz 1.425v
BFG GTX 260 (216)
4GB G.Skill @ 960MHz
Thermaltake TP 850w
Reply to OvrClkr

yeah i went in to the bios and configured it 2.1 volt 1066 speed and the 5-5-5-15 timings but it was only stable for 20-30 minutes before i would get brown crazy stripes on my screen, when i set the ram back to 800 with auto voltage it runs stable for days.

also it says the ram is unganged not sure whether that is better than ganged or not

Reply to jms31207

Leave it as "unganged".

Have you tried lowering your rimings to 4-4-4-12 ?

------------------------------ 550 @ 4.0 Ghz 1.425v
BFG GTX 260 (216)
4GB G.Skill @ 960MHz
Thermaltake TP 850w
Reply to OvrClkr

you think i would have to up the voltage to acheive the 4-4-4-12 timings?

Reply to jms31207

play with the voltages till you find stability, for instance start with 1.9v and gradually go up.

------------------------------ 550 @ 4.0 Ghz 1.425v
BFG GTX 260 (216)
4GB G.Skill @ 960MHz
Thermaltake TP 850w
Reply to OvrClkr

alright i will see what i can do once i get home from school lol

------------------------------ Gaming PC:
Phenom x4 9750 l Asus M3N-HT deluxe HDMI mobo l 6GB Gskill 1066 PC8500 RAM l WD Caviar Black 1TB x2 l ATI Radeon HD 5870 l Apevia 900 watt PSU l Sunbeam Transformer case
Reply to jms31207

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