Tom's Guide > Forum > Overclocking > General Discussions > [Solved] Performance drop after few minutes

[Solved] Performance drop after few minutes

Forum Overclocking : General Discussions - [Solved] Performance drop after few minutes

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Best answer from overshocked.

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carpand   11-08-2009 at 03:45:47 AM

So I got my system OC'd and stable. (1 hour on both OCCT tests and 5 hours on prime95 blend) at both 3.7ghz and 3.8ghz.. Have 2 profiles for my setup in my bios. Here is the problem. After startup I can run benchmarks fine, they run great and scores look good. I'm using super pi, amd overdrive, and cinebench.

After about 10-15mins after startup.. my performance drops by almost 10% easily.. some cases upwards of 20%. I have my power options set to max power consumtion/performance.. I don't understand..

Please any thoughts?

PS my specs should be in my sig to see my setup

------------------------------ http://valid.canardpc.com/cache/banner/815096.png
In Progress:
AMD Phenom II 955 (3.7 GHZ),Mugen 2, 2.2 ghz NB, Patriot 800mhz 2x2GB, Gts 250, Asus m4a78 pro, lancool tower
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Best answer from overshocked
well, sounds like its working out now...
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carpand   11-08-2009 at 04:34:33 AM

Dropped my NB from 2.4 to 2.2ghz.. haven't noticed a performance drop in benchmarks and so far seems to have solved my problems.. Might have to bump my cpu back to my 3.8 OC and try the lower NB =D

------------------------------ http://valid.canardpc.com/cache/banner/815096.png
In Progress:
AMD Phenom II 955 (3.7 GHZ),Mugen 2, 2.2 ghz NB, Patriot 800mhz 2x2GB, Gts 250, Asus m4a78 pro, lancool tower
 Reply to carpand
overshocked   11-08-2009 at 08:15:14 AM

could it have been heat? What were the temps?

------------------------------ http://img191.imageshack.us/img191/885/14y1fuqvybiiwayab.gif
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carpand   11-08-2009 at 08:34:01 AM

Sits at 51C under full load at 1.5v. I'm thinking it doesn't have enough power? But I'm hesitant to go over 1.5v even though its staying cool.

Looks like at my current settings of 1.45v @3.7Ghz with a 2.2ghz NB it is staying pretty solid (stable+consistent benchmarks). I just can't seem to get over the 3.7 hump =/

I blame my old mobo.. just bought it on sale at my local pc store new for like $65 so i can't complain even though its been around for like a year.

------------------------------ http://valid.canardpc.com/cache/banner/815096.png
In Progress:
AMD Phenom II 955 (3.7 GHZ),Mugen 2, 2.2 ghz NB, Patriot 800mhz 2x2GB, Gts 250, Asus m4a78 pro, lancool tower
 Reply to carpand
overshocked   11-08-2009 at 09:03:53 AM
Best answer

well, sounds like its working out now...

------------------------------ http://img191.imageshack.us/img191/885/14y1fuqvybiiwayab.gif
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