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stable overclock but games running slower.

S

Sharpshankgold

n00b
Joined
Jun 8, 2009
Messages
13
here are my specs:

EVGA 122-YW-E173-TR LGA 775 NVIDIA nForce 750i
e8500 dual core
4mb CORSAIR XMS2 240-Pin DDR2 SDRAM DDR2 800
geforce 9800gtx
thermaltake pure power 680w

i overclocked the processor to 3.7 ghz. vcore is a tad over stock at 1.25625v. Ram is at 4-4-4-12 at 800 mhz and the voltage is 2.1. It passed 24hours prime95 large fft. Should be okay right? Performance on call of duty world at war is much worse than stock. I thought it could be the ram but shouldn't it have failed prime 95.

my temps are around 60 degrees C at full load. kinda high i thought but it's really hot in my room. spp is running at 60C at full load and idle. doesn't change more than 2 degrees C. is my cpu throttling? i turned off speedstep in the bios.

I'm gonna run memtest overnight to see if that's the problem. if it's not what else could it be?
 
so your idle and full load temps are both at 60C? constant? when you run memtest or p95 have cpu-z open and real temp.. then watch cpu-z and see if the cpu speed drops at all.. even though you have speedstep off it will still throttle the cpu to protect it if the temps get to high..
 
temps have nothing to do with it. at 60C no your cpu should not be throttling. Turn off C1E as well as EIST/speedstep.

with a 9.5x cpu mulitpler to get 3.7 means a 389ish FSB.
apparently you have the memory unlinked and running at 800MHz with unknow base clock and memory mulitplier (set by board I assume).

The mismatch between cpu to NB FSB and the NB to memory is one problem.

Link your memory
run (if you can) 400FSB x cpu multi of 9 for cpu speed of 3.6GHz
memory multiplier of 2.0 resulting in 800MHz memory speed.

see if those settings improve the performance. If so your issue is in the board OCing setup/settings. If not look at your video card.
 
Large fft is useless without enableing all of your ram. Just select Large FFT, then custom, than uncheck "run ffts in place", and lastly type in all of your available ram. That will stress you mch, hard.

To check your cpu's stability just run small fft for a few hours.

Also Nvidia chipsets love a 1:1 divider with tight timings.

I'm pretty sure that you board uses the "rated" FSB which for 400 would be 1600mhz. I would leave the multi at 9.5, tbh.
 
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BababooeyHTJ said:
Large fft is useless without enableing all of your ram. Just select Large FFT, then custom, than uncheck "run ffts in place", and lastly type in all of your available ram. That will stress you mch, hard.

To check your cpu's stability just run small fft for a few hours.

Also Nvidia chipsets love a 1:1 divider with tight timings.

I'm pretty sure that you board uses the "rated" FSB which for 400 would be 1600mhz. I would leave the multi at 9.5, tbh.
Click to expand...

Yes it's using the rated fsb. So should i run 1600mhz and the divider at "synced." It's the only way to get the ram to run at 800 mhz at that rated fsb speed. If i run it at 1:1 the ram will be running too fast.

This mobo has very limited ram dividers.
 
Sharpshankgold said:
Yes it's using the rated fsb. So should i run 1600mhz and the divider at "synced." It's the only way to get the ram to run at 800 mhz at that rated fsb speed. If i run it at 1:1 the ram will be running too fast.

This mobo has very limited ram dividers.
Click to expand...

With a Nvidia chipset you normally want your ram at 1:1 with your timings as tight as possible. Unlike an Intel chipset those nforce boards don't like being on a divider. I could pull off higher cas 4 speeds on my 780i than I could with my P45 anyways. If your ram can't handle 800mhz which is 1:1 at a 400fsb(1600 rated) it's time to upgrade.
 
when i set it at 1:1 at 1600 fsb my ram is running at 1600. does that mean the ram is really running at 800 mhz?

I think i may have found the problem. i beleive my graphics card is bottlenecking my performance after overclocking my cpu. ON other games i'm not really noticing any performance drop after overclocking. Seems to be performing the same as before. World at War is an extremely buggy game so having a wierd bug like having the game performance reduced because of a bottleneck with the graphics card after overclocking the cpu isn't that farfetch i would think. What do you guys think?
 
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Your performance wouldnt go down though. Could just be an issue with cod - waw like you said.
 
Sharpshankgold said:
when i set it at 1:1 at 1600 fsb my ram is running at 1600. does that mean the ram is really running at 800 mhz?

I think i may have found the problem. i beleive my graphics card is bottlenecking my performance after overclocking my cpu. ON other games i'm not really noticing any performance drop after overclocking. Seems to be performing the same as before. World at War is an extremely buggy game so having a wierd bug like having the game performance reduced because of a bottleneck with the graphics card after overclocking the cpu isn't that farfetch i would think. What do you guys think?
Click to expand...

Your rated FSB is 4x your actual FSB. So with a 1600 rated fsb you are running 400mhz actual and 400mhz 1:1 = 400mhz on your ram and since it's DDR (DUAL Data Rate) that would be 800mhz on your ram.

You may want to test with Prime small fft since large fft is completely useless, tbh.

e-geek said:
Your performance wouldnt go down though. Could just be an issue with cod - waw like you said.
Click to expand...

I had the same problem when I upgraded to 8gb of ram before I got my clocks stable. It runs fine now.
 
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