AMD64 3200 10x275 easy (run idle at 38C), Higher?

[imported_composer]

Hey there.

AMD64 3200 @ 2.760, v-core still at 1.425, 10x275, runs all benchs perfect, including superpi 1/2/4/8 MB.
Motherboard Giga K8NS Ultra 939
V-core at 1.425.
Memory timings: 2.5-4-4-10-1T

Here is where it gets strange.

I can really do 10x276 with hardly any problems yet a 10x280, forget about it (furgettabootit)
no matter what I do.

DDR OCZ problem? Not sure, tried divider, increasing volts on DDR, different timings of 2.5-5-5-10, etc, tried increasing vcore all the way to 1.60, still Super Pi errors.


I'm not complaining, as a 775 mhz boost is ice as much as I am trying to figure out what wall I go from pure withing spec (DDR rated at 266, mine 276 no problems, CPU vcore rated at 1.40 - 1.450), ddr vcore rated at 2.9, mine 2.7, but on one hand it's running cool and no errors, then .40 more megahertz (10x280) and a wall is hit, sureley there is some other setting that is causing this.


At 10x280, I also ran memory86 test and sure enough, some errors, so one would think, use a divider and Superpi should run, nope. Still not the case. At 10x275, memtest runs fine as does superpi....

anyone have any ideas?

thanks

 

[richardrds]

I think you just may have reached the limit of the current Winchester cores. From all the posts i have read it seems like the 3000+/3200+/3500+ winchester cores all have the potential to OC up to 2.7 range, but have not read any saying they have reached 2.8G on a winchester!!

 

[HeaterCore]

My idea would be to sit back and appreciate the ludicrously fast PC you've just built. Sounds like you've hit the Winchester wall.

-HC-

 

[Dug]

Where did you get your chip and what cooling are you using?

 

[Duvie]

what week on that chip!!!

 

[chinkgai]

how many hours prime stable?

 

[imported_composer]

Whoo, so many questions.....

Ok, got it last week from Newegg, retail heat sink. Runs 38-39C idle. Throttle disabled.
PSU is stock JustPC extreme Case (they look cool and are quiet, no side fans, quiet needed for audio work), will upgrade to OCZ Powerstream later, although I might never have too. I also may get a Lu Lan or something like that case (aluminum) but then again, I really like the quietness and PSU so far.

What week? Not sure, will any software show this? Everlest (spelling), CPUID, sisoft?

Have run Super Pi but not Prime yet. Keep in mind, this is an audio rig, and not gaming, but am sure it's stable, nevertheless I would like to run prime. Link to d/l?

 

[imported_composer]

Originally posted by: richardrds
I think you just may have reached the limit of the current Winchester cores. From all the posts i have read it seems like the 3000+/3200+/3500+ winchester cores all have the potential to OC up to 2.7 range, but have not read any saying they have reached 2.8G on a winchester!!

Well I can reach 10x280 but there are errors in memtest+ and SuperPi, yet none in my audio program.

It's strange though...10x276 Fine @1.425 vcore, 10x280 not fine, haven't gone beyond 1.6 vcore though. But if knowone else has reached this (2.8) then I might as well not bother, as 38-40% gain is fine with me, It's just that it's more like trouble shooting and figuring out where the problem lies...

It can't be the vcore as 10x275 is at 1.425, it can't be memory as memory divider has NULL effect......so it has to be something else, I think it's just a matter of what...
Also, the PCI is 33.9 and AGP 67.1, so that is fine. There is something somewhere, even if it meant soldering a connection. Can't help but wonder (warning stupid question coming) if the 1MB cache is really on these chips and somehow disabled.

On the other hand, there aren't too many FX55's reaching beyond 2.7 either on air (default is 2.6)...

 

[chinkgai]

alot of systems will be benchmark stable but not prime stable...you can download it with a simple search on google

edit: no program will tell you the week...its written on the cpu itself

 

[Shimmishim]

Originally posted by: composer

Originally posted by: richardrds
I think you just may have reached the limit of the current Winchester cores. From all the posts i have read it seems like the 3000+/3200+/3500+ winchester cores all have the potential to OC up to 2.7 range, but have not read any saying they have reached 2.8G on a winchester!!

On the other hand, there aren't too many FX55's reaching beyond 2.7 either on air (default is 2.6)...

um.... the FX55's hit 2.9 to 3.0 on air... go check out xtremesystem.org...

 

[imported_composer]

I need to clarify....air for me = stock heatsink/fan, maybe for you too, but most of the time it's some sort of vacum cleaner tornado,

 

[imported_composer]

Originally posted by: chinkgai
how many hours prime stable?

I haven't done Prime yet, as I'm do like all the settings/changes it makes to my system.

For me, I think Super Pi is good enough (at least 16MB).

Still, it's strange, but I talked to OCZ and they told me the DDR OCZ rev. 2 plat is rated for 266 at least, so 10-275 is pushing it a little, They also have another that STARTS at 266 and is supposed to go higher, but was told for the nforce3, the dual set I have is the best that they sell for this chipset.

While it's a new system, I'm looking into the other memory and wondering if that would allow for higher FSB settings, as anything above 277 gives me errors, including memory+ test, so, if anyone knows anyone that has HIGHER rated modules than the OCZ Plat rev 2 and still can't get beyond 277 without errors, please let me know.

Running superpi 16 w/no errors at 1.425 volts 10x270/276,

 

[richardrds]

Go to this site and download Prime95.

h**p://www.benchmarkhq.ru/english.html

(replace ** with tt)

Go to options and do the Torture Test with the Blend mode. If you can run 12-24 hours without taking any errors then you are stable. Alot of rigs will pass 32M SuperPie and still not be stable (Prime95 fails). If you can make Prime95 torture test run for 24 hours error free then you can give yourself a slap on the back and say yes, i have a stable 2.76Ghz overclock. You may also want to run 3Dmark05 to make sure your Graphics card is stable.