New Ram = No More OC for me

Sho'Nuff

Diamond Member
Jul 12, 2007
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Recently I replaced some corsair DDR2 800 ram in my rig with some OCZ SLI ready DDR2 1066 (One of the corsair sticks went bad). After installing the OCZ ram, my computer would not boot with my then current bios settings (CPU running at 2.9GHZ with slight overvoltage, ram running unlinked at stock speeds). I reset the bios to default, and the comp booted fine. The OCZ mem passed memtest with no errors, so I set about trying to reclaim my previously "mild" (compared to some) OC. Try as I might, I now cannot OC this processor 1hz beyond 2.4GHz.

Anyone have any idea what the issue might be?

 

BlueAcolyte

Platinum Member
Nov 19, 2007
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Are you sure you reset the BIOS? Did you take the battery out and place it back in after 30 minutes?
What is your motherboard?
 

Sho'Nuff

Diamond Member
Jul 12, 2007
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Originally posted by: BlueAcolyte
Are you sure you reset the BIOS? Did you take the battery out and place it back in after 30 minutes?
What is your motherboard?

Fairly certain I reset the bios. I'm sure I cleared the CMOS (using the jumper on the motherboard). I have the EVGA nforce 680i chipset.



 

BonzaiDuck

Lifer
Jun 30, 2004
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It can be a hobby that can get expensive -- occasionally. But these days, RAM is cheap.

OCZ has "EVP" warranty and voltage-protection, but I thought those modules are rated to 2.2V.

You should really set everything back to "auto" and default. You should be able to get the same CPU over-clock at the same voltage you had set before, but if the modules don't run at least on the same divider/multiplier you used earlier (I assume it may have been 1:1 ?), then you'll have to try something different. And of course, you should start with the stock latency settings.

I blew a set of Crucial Balllistix DDR2-1000's -- keeping them just within their voltage spec, underclocking them, and tightening the hell out of the latencies. They went 9 months with a lot of PRIME95 testing and changing back and forth between various over-clock settings.

So I had a set of Crucial Tracer DDR2-800's to replace them. I just can't achieve the same tight latency settings. But I can run at considerably less voltage on a divider or memory-multiplier of 4:5 (CPU : DDR), and get about the same bandwidth in the synthetic benchies -- at a higher memory speed and above the spec for those modules (880). This actually makes me more comfortable pushing the CPU speed back up to one of the higher settings.

Some of the OCZ modules use D9 fat-bodies. If the modules tested out at their stock settings, there may be something you're missing that is making it difficult or impossible to over-clock.

GRANTED THOUGH: I once blew a motherboard memory controller on a system at its over-clock settings, but the entire system would test out error free at stock settings. For that, I"d say to anyone -- be careful how far you push your FSB, even on these newer boards. You'll get a lot more satisfaction over more conservative over-clocks that are less likely to destroy your parts.
 

sutahz

Golden Member
Dec 14, 2007
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The only suggestion I can add is set your ram timings manually. Something like 5-6-6-18-5-48-blah blah blah

You dont mention your chipset/cpu at all. Man thats important stuff. well not your cpu so much but chipset yeah. we dont know if you have amd or intel, which would tell us if you've got a good mobo/chipset or not. If you've got intel set it to 1:1, if you've got AMD set it to 1:1 or lower. If ram cant pass memtest86+ at its recommended settings something is wrong w/ the ram or the mobo.
 

40sTheme

Golden Member
Sep 24, 2006
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I would raise the timings like sutahz said and make sure you are at a low Mem:FSB ratio, then try again.
 

Mr Fox

Senior member
Sep 24, 2006
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Originally posted by: BonzaiDuck


Some of the OCZ modules use D9 fat-bodies. If the modules tested out at their stock settings, there may be something you're missing that is making it difficult or impossible to over-clock.


D-9 FatBodies have been long since built out, and superseded.....

D-9 Designation applies to the 800 Mhz familiy only...

In this case these are D-7 Micron IC's according to the Egg

http://www.newegg.com/Product/...x?Item=N82E16820227181


1066 is unsupported by the OP's MOBO... so that is part of the issue....




 

Sho'Nuff

Diamond Member
Jul 12, 2007
6,211
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Originally posted by: sutahz
The only suggestion I can add is set your ram timings manually. Something like 5-6-6-18-5-48-blah blah blah

You dont mention your chipset/cpu at all. Man thats important stuff. well not your cpu so much but chipset yeah. we dont know if you have amd or intel, which would tell us if you've got a good mobo/chipset or not. If you've got intel set it to 1:1, if you've got AMD set it to 1:1 or lower. If ram cant pass memtest86+ at its recommended settings something is wrong w/ the ram or the mobo.

OK, here is the gist of my Rig.

EVGA nForce4 680i (which DOES support 1066mhz memory)
C2d 6600 conroe w/ Thermaltake Big Typhoon
4GB (4x1Gb) OCZ SLI Ready DDR2 1066 MHZ
GeForce 8800GTX
Sb X-Fi extreme musice
ABS Tagan BZ Series 1100W PSU
Several HDDs

Still no luck with the OC. But now I am having some other weird issues. My comp randomly turns off, boots with one long beep (which continues until I reset the video card); bios randomly resets. Hopefully the Mobo isn't shot.