X2 3800+ OC to 2.7ghz @ stock (1.4) **Update with pic of proc in OP**

[jimbob200521]

I'm looking to stress test my X2 3800+ oc, but I'm not sure what to run Prime95 at. Do I want run the torture test as:

Small FFTs
In-place large FFTs
Blend

I've heard this is a great test of a CPU overclock, and I want to make sure I run it right if I'm going to be running this for 24+ hours.

Thanks for any help

Edit: Pic of proc. Would anybody be able to tell me whether I have the Manchester or Toledo Core?

 

[Shimmishim]

small fft but you need to run 2 instances of it since you have a dualcore chip

 

[jimbob200521]

Originally posted by: Shimmishim
small fft but you need to run 2 instances of it since you have a dualcore chip

Thanks I'll report back tomorrow about my oc (2.7ghz @ stock voltage, 1.4)

 

[Unkno]

that is a really nice overclock if it's 24+ hours stable.....my X2 3800+ needs 1.5V for 2.7Ghz..................btw, stock voltage is 1.35, your motherboard's default is probably set at 1.4...

 

[HamidFULL]

Originally posted by: jimbob200521

Thanks I'll report back tomorrow about my oc (2.7ghz @ stock voltage, 1.4)

What your CPU Serial??? MPMW or GPLW???
and In-place large FFTs and Blend are for test which Hardware?

 

[GOREGRINDER]

if that cpu passes at 2.7ghz 1.4 volts more than 15-20 minutes in prime95 blend torture ill be suprised,..lol

 

[Pr0nMaster]

yea thats pretty intense oc for 1.4v the 146 im getting dors 2.8@ 1.4 bt its a really good stepping

 

[TrevorRC]

Jim, even if that is stable, up the voltage a bit--undervolting the chip can cause damage, too (over time).

 

[JustStarting]

Originally posted by: TrevorRC
Jim, even if that is stable, up the voltage a bit--undervolting the chip can cause damage, too (over time).

not always...... it depends on your vdimm

 

[jimbob200521]

Originally posted by: HamidFULL

Originally posted by: jimbob200521

Thanks I'll report back tomorrow about my oc (2.7ghz @ stock voltage, 1.4)

What your CPU Serial??? MPMW or GPLW???
and In-place large FFTs and Blend are for test which Hardware?

I'm not sure what the serial is. And what is MPMW & GPLW?

Originally posted by: GOREGRINDER
if that cpu passes at 2.7ghz 1.4 volts more than 15-20 minutes in prime95 blend torture ill be suprised,..lol

Well I let it run overnight, about 12 1/2hrs total, and no problems I won't be able to do a 24+ hour test until tonite, so when I get that done, I'll report back on that as well.

 

[Unkno]

12.5hours stable? did you run two instances of small FFTs? Blend won't be able to fully test the cpu but it tests the memory more

 

[jimbob200521]

Originally posted by: Unkno
12.5hours stable? did you run two instances of small FFTs? Blend won't be able to fully test the cpu but it tests the memory more

Yep. I did what Shimmishim suggested and ran two instances doing small fft's. After I do the 24 hour run, I'll post a screenshot of the completed run.

 

[Unkno]

Originally posted by: jimbob200521

Originally posted by: Unkno
12.5hours stable? did you run two instances of small FFTs? Blend won't be able to fully test the cpu but it tests the memory more

Yep. I did what Shimmishim suggested and ran two instances doing small fft's. After I do the 24 hour run, I'll post a screenshot of the completed run.

wow that is a really nice overclock if it can pass 24+ hours.....what's your temperature and what cooler you using?

 

[jimbob200521]

Originally posted by: Unkno

Originally posted by: jimbob200521

Originally posted by: Unkno
12.5hours stable? did you run two instances of small FFTs? Blend won't be able to fully test the cpu but it tests the memory more

Yep. I did what Shimmishim suggested and ran two instances doing small fft's. After I do the 24 hour run, I'll post a screenshot of the completed run.

wow that is a really nice overclock if it can pass 24+ hours.....what's your temperature and what cooler you using?

Thanks I have Koolance's Exos Liquid cooling with this block. Temps usually run in mid to upper 30's. I've tried to go higher than 2.7ghz, and it will post at 2.8+ghz, but no matter what I've tried, I can't get it to boot into Windows. I've taked the core as high as 1.5v.

 

[Unkno]

you have the toledo core.....E6

 

[Tweakin]

Originally posted by: Unkno
you have the toledo core.....E6

I thought all the 3800's had the newer Manchester core, which was designated by the JH-E6 Revision code?

 

[bjc112]

Originally posted by: Tweakin

Originally posted by: Unkno
you have the toledo core.....E6

I thought all the 3800's had the newer Manchester core, which was designated by the JH-E6 Revision code?

If the stepping ends in CD, I believe it is always a Toledo core with half the cache disabled... I could be wrong though!

 

[Absolute0]

That's about how mine did as well, see if you can do this with 1.6 Vcore

http://img.photobucket.com/albums/v729/absolute035/overclocking/a5ce43db.jpg

 

[jimbob200521]

Originally posted by: bjc112

Originally posted by: Tweakin

Originally posted by: Unkno
you have the toledo core.....E6

I thought all the 3800's had the newer Manchester core, which was designated by the JH-E6 Revision code?

If the stepping ends in CD, I believe it is always a Toledo core with half the cache disabled... I could be wrong though!

Thats what I've always thought too.

 

[GML3G0]

http://img248.imageshack.us/my.php?image=2600stable9as.jpg

Use custom with the settings in the screenshot. Use SP2004. GUI interface to Prime95. Store a copy in two seperate folders.

 

[jimbob200521]

Well, I finally got the time to run Prime95 for 24hrs. I'm happy to say that my X2 3800+ is fully stable for 24hrs in Prime95

 

[Finnster]

Absolute0, I see that you did 2870ghz at 1.6vcore, but why is that your multiplier on your SP2004 shows...2870MHz FSB: 194MHz [205MHz x 14.0est.]. Isn't that wrong? Shouldn't it be 10x287? Something doesn't look right there? Looks right on your CPU-Z photo. http://img.photobucket.com/albums/v729/absolute035/overclocking/a5ce43db.jpg

 

[rise]

Originally posted by: jimbob200521
Well, I finally got the time to run Prime95 for 24hrs. I'm happy to say that my X2 3800+ is fully stable for 24hrs in Prime95

sweet, whats your final oc?

i just noticed this thread, i have the exact same chip, i just gotta figure out which machine its in

 

[Unkno]

Originally posted by: jimbob200521
Well, I finally got the time to run Prime95 for 24hrs. I'm happy to say that my X2 3800+ is fully stable for 24hrs in Prime95

you just won the lottery......(in terms of the chances of winning, not money)

 

[JSK06]

Man, that is a sweet OC for the 3800. I'm at 2500 with mine and everything is stable and cool. You've got me thinking about trying for 2.7 too.