Well, I'm currently at a 120MHz bus. 133 froze almost instantly in 3DMark. I probably just need more juice, I've got another BIOS sitting at work that will give me more, so hopefully tomorrow evening I can get to 133MHz.

I got through both CPU tests and the RAM test in Sandra at 133MHz, I'll upload my scores from that and 120MHz in a minute.

Any other suggestions/questions/comments? I just barely started OCing, and I haven't even gotten WinXP to install on my RAID array yet, so I don't have very high expectations so far.

<A HREF="http://www.geocities.com/fattyburger/120benchmarks.html" target="_new">Benchmarks @ 120MHz FSB</A>

<font color=orange>Quarter</font color=orange> <font color=blue>Pounder</font color=blue> <font color=orange>Inside</font color=orange><P ID="edit"><FONT SIZE=-1><EM>Edited by FatBurger on 02/24/02 02:49 PM.</EM></FONT></P>

If it's the TH7II-Raid, there's a volt mod you can do to the mobo that's pretty easy and not permanent. I am using it. I need better cooling to keep higher voltage though.
Here's some benches and stuff I posted on another forum.

http://forum.oc-forums.com/vb/show [...] adid=68659

and here,
http://forum.oc-forums.com/vb/show [...] adid=69294

It is looking very good.

<font color=blue>You get what you pay for.... All advice here is free.</font color=blue>

Great! Set the FSB to 133MHz and lower the RAM back to spec. Make sure you have the PCI/AGP bus locked. I suggest you aim for processor performance first and then memory performance second. As long as you don't underclock memory, you'll still see a sizable performance increase with the faster bus and CPU.

AMD technology + Intel technology = Intel/AMD Pentathlon IV; the <b>ULTIMATE</b> PC processor

I know I can do that, but I'm going to do this with the stock heatsink and no physical modifications to the motherboard (at least at first). Besides, with a BIOS that gives you higher voltages, why bother?

AMD_Man, I'm pretty sure it's my voltages holding me back. I'll also try it with the RAM in spec, but my goal is 133 for both CPU and RAM.

<font color=orange>Quarter</font color=orange> <font color=blue>Pounder</font color=blue> <font color=orange>Inside</font color=orange>

If you want to find where you max out at quickly with current voltage settings then I suggest using the program SetFSB. The author just made support for the TH7II. For example I was running at 1.7volts and a setting of 133FSB and the Ram at 300 in bios which is actually 400 when overclocked to 133 at bootup. Now I Increased to 156 FSB incrementally in WindowsXP Pro at which point I got errors. Well that gave me an indication where to do some more testing. I booted up at 150 and tested away.

Ok, up the voltage to over 1.6V and report your results, please.

AMD technology + Intel technology = Intel/AMD Pentathlon IV; the <b>ULTIMATE</b> PC processor

I'll try SetFSB, I've heard of that before.

Amd_MAN, my 133 bus was at 1.625v, the highest allowed with the current BIOS on my motherboard.

<font color=orange>Quarter</font color=orange> <font color=blue>Pounder</font color=blue> <font color=orange>Inside</font color=orange>

Well, SetFSB didn't work too well, but I think I know why.

The Abit TH7II-RAID does <i>not</i> lock the PCI bus, although it says it does. How do I know? Because my RAID card refuses to let me boot when I get too high (at 120MHz now, 133MHz wouldn't boot), even though the BIOS states the PCI bus is at 33MHz. Because it's supposed to lock it down, there is no divider. There is an AGP divider, they might be connected. I'll test it and see what I can do.

<font color=orange>Quarter</font color=orange> <font color=blue>Pounder</font color=blue> <font color=orange>Inside</font color=orange>
Don't step in the sarcasm!

Are you using that "77bios" to get more voltage? If you are that may be the problem because it's a modded version not a true beta from Abit. The 38 version is newest so far and I don't know what the 77 version was modded from.

Im running the 77 bios now, you can kick the Vcore up to 1.85 without and fear of dmg. The Abit will draw up to 1.85vcore and should remain @ 1.39~1.50 while its running at 1.6ghz.

Set differential current to 4x

set AGP apature to 64

Set fastwrites on

Ok, your PC returns to 33Mhz when the FSB breaches 133Mhz, 166Mhz, 199Mhz, 232Mhz. you will see the PCI speeds on the right of the FSB adjustment.

@ 134FSB your vcore should be around 1.6v based upon where mine hits at that speed.

Make sure you PSU is up to snuff, disconnect all devices from PCI, IDE, power, except the hard drive and video card.

Make sure you have good air flow across cpu and from around memory and chipset.

Try to break the 133FSB first with AGP at 2/4 and memory and 300.

My raid controller starts to fail around 41Mhz from what I can remember.

I can break 160FSB with a AVC sunflower, good samsung RDR, and a strong breeze.

I run constantly now @ 140FSb = 2.25Ghz'ish with just the AVC.

Proving once again that <A HREF="http://www.zombo.com" target="_new">anything is possible</A>.

What is the differential current? Is that for RDRAM voltage?

It always shows 33MHz in the BIOS, regardless of where the FSB is. At 133MHz, my PCI RAID card refuses to boot.

I'm not going to disconnect devices, I have a 431w PSU, but I want to make sure I hit 133MHz with the retail heatsink and everything running, and running stably.

I'll try with AGP at 2/4 and RDRAM at 300 first like you say, to make sure it's the CPU or PCI.

How loud is the Sunflower? I might look into getting one, they're pretty sweet.

All my other settings are what you've said, thanks for the help.

<font color=orange>Quarter</font color=orange> <font color=blue>Pounder</font color=blue> <font color=orange>Inside</font color=orange>
Don't step in the sarcasm!

Fugger, if you have to remove all your PCI and IDE devices except the hard drive to get a P4 stable at high overclocks then everything about the P4 Northy being good at overclocking is an extreme stretch of the truth. It could even be called a lie. Hmm...it makes me wonder about your 3DMark2001 scores...what's the point of getting a 10,000pts score when your computer is unusable for anything else?

Anyway, Fatburger, I do suggest you raise the voltage to over 1.7V now and set the PCI bus with a divider rather than locking it. Lower the RDRAM speed for now too. If everything is stable at 133MHz FSB then try raising the RDRAM speed again. You may be having a RAM issue.

AMD technology + Intel technology = Intel/AMD Pentathlon IV; the <b>ULTIMATE</b> PC processor

There is no option for changing the PCI bus speed. None whatsoever.

<font color=orange>Quarter</font color=orange> <font color=blue>Pounder</font color=blue> <font color=orange>Inside</font color=orange>
Don't step in the sarcasm!

What PCI slot do you have the raid card in? I have XP installed on a WD HD on a Promise Ultra100 IDE (nonraid) card in PCI slot 3. There is a lot of sharing of slots and devices explained in the manual. This may be a problem for example if the card is shared with USB or AGP or some other device when overclocked.

Hmm, I've seen them in reviews, with the option to either set a divider or lock the bus at the default 33MHz.

AMD technology + Intel technology = Intel/AMD Pentathlon IV; the <b>ULTIMATE</b> PC processor