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Overclocking Opty 144\Ultra-D\CORSAIR Value

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Yoshi911

Senior member
Yo, I am trying to OC my system, obviously the Corsair is the weak link in this chain but I have some OCZ gold VX being RMA'd atm. BUT, the thing is, this CPU can get cranked up to 3.0+ ghz the board from what I understand is capeable of at LEAST 300mhz and so when I try running it on memory deviders keeping the memory at under 200mhz it still dont work..

exp1

CPU: 266x9= 2.39ghz
MB : 266xauto= 2000mhz range
RAM: 3/4 divider=199.5

Fails memtest86
this is with ultra relaxed timings...what settings should I look at adjusting?
It's fine running 200mhz default settings
 
People will annihalate you for that PSU. They'll question why you're running all that decent hardware, and then powering it all with an utter piece of, albeit shiny, tripe.

That is a temperamental board, check that it will play nice with that memory over at dfi-street.

Sometimes mem dividers can be a bit lame for no reason, maybe try a different divider.

When you say MB : 266xauto= 2000mhz range, I presume that's referring to 266 x LDT multiplier? set it to 3x just to be one the safe side, as you don't want it over 1,000, so 4x = too high. Don't use auto, they're just so rarely trustworthy.
 
sweet, thanks for the tip. As for the PSU, I've seen allot of reviews and I'm happy so far, had it a couple months. This new model is supposed to be light years better than the past models, been real stable so far, but my 6800 GTO is not the GT and it has no power cord.. so barely taxing this thing at all, but we'll see.
 
You have to play with the memory DriveStrength settings in your bios. Start with the weakest (8).
 
Its the corsair value select, i had to dump mine to overclock reliably.

See sig for current memory.

I tried 9 different BIOS, and every memory divider.

Changing memory instantly fixed the problem.

Corsair value select has documented problems with DFI Nforce 4 mobos.
 
yeah I guess, atm I got it working Prime stable 300mhzx9=2700mhz CPU, followed letdown427's recomendation to put the LDC multi to 3 but I'm having to run the ram at 1/2 multi, DDR300 🙁 seems that It don't wanna go over DDR350 (3/5 multi was to high for em... My thoughts are to slowly see how much higher my CPU\MB combo will run to get closer to DDR350... can't wait till I get my good RAM back.. 🙁
 
Originally posted by: Yoshi911
yeah I guess, atm I got it working Prime stable 300mhzx9=2700mhz CPU, followed letdown427's recomendation to put the LDC multi to 3 but I'm having to run the ram at 1/2 multi, DDR300 🙁 seems that It don't wanna go over DDR350 (3/5 multi was to high for em... My thoughts are to slowly see how much higher my CPU\MB combo will run to get closer to DDR350... can't wait till I get my good RAM back.. 🙁
Click to expand...

My issues were directly related to dividers... no other setting did a thing...

It would only work on 1:2, 1:1, or 2:3
 
Yeah, I was going to mention lowering your LDT, but you've done that now...only other thing I can think of is what others have said, that Corsair value RAM doesn't like DFI Ultra-D's very much.
 
well, it's prime95 stable, 7hrs so far.. 2.88ghz, 320x9 🙂) tops out at 45c runnin at DDR320 😛

oh, another thing... did memtest86 all last night and it ran 11 times, but on the 5th run it had 8 errors, none after that... what does that mean
 
Originally posted by: Yoshi911
well, it's prime95 stable, 7hrs so far.. ... did memtest86 all last night and it ran 11 times, but on the 5th run it had 8 errors, none after that... what does that mean
Click to expand...
It means your memory is having a problem. You should have no Memtest86 errors. You will have application problems down the road. Does the RAM pass Memtest86 in "Default" settings?

Did you try setting "Bank Interleave" to "Disable"? CPC must be set to "2T" and Bank Interleave "Disable" for me to run 4x512 Corsair VS. I don't see where you name the number or size of your VS boards, but it may apply even with 2x1024 or 2x512.

I set the sig rig up 9 months ago, with thorough Memtest86 checking. 2 months ago, my son started complaining of random reboots. I found that one of the 4 DIMMs was giving errors. I tested each DIMM individually. You may have a bad DIMM.

Before switching to 4x512 Corsair VS, I tried 2 different 2x512 OCZ gold variants. Both pairs were sent back. One because the two DIMMS would not OC to the same level, the other pair because one DIMM would not pass Memtest86 at stock timings and speed.

Regarding OC'ing VS, hey, well, 2 MHz is an OC! For VS, anyway. 😉 If you get stuck at the 2:1 divider, at least try running 2-2-2-5 while you are there!

My kid moved from a 1.7 Celeron/TI4200 to a Venice@2600/x800xl, so he didn't care about the difference between VS and VX.
 
Haha, yeah I did. I have em atm at 2-2-2-5 atm, with 8errors on that 5th test, I think I'm gonna bring it down to 315mhz see how it goes, they're fine with 200mhz DDR400 though.

Oh btw, my VS are 2x512mb running CPC 1T(cant remember if bank interleave is set to disable) I'll check it out.

The guy just asked for my info on the OCZ ram though so I should be set as soon as those are exchanged
 
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