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When I overclock my score becomes MUCH slower

444 Views 6 Replies 4 Participants Last post by  milow
Hi everybody i'm new to this forum and I hope you could help, it should help you to know that I have some experience of overclocking.

My specs are:
E6600 dual core C2D
P5B Deluxe
2gb ddr800 RAM (2x1gb CORSAIR CM2X1024-6400C5DHX) soon to be "Corsair (2x2048MB) TW2X4G6400C4PRO"
1gb Gigabyte 4850 with zalman fan oc to 750/2100
700watt power supply
Windows XP Home
Very good cooling and case

My problem is when i come to overclock. I can get the cpu to 3.6ghz (400x9) absolutely fine, although it runs worse. So where the farcry benchmark would say 40fps for 2.4ghz it would be in the mid 20s after the overclock.
You might say the overclock is too extreme although i have this problem on anything including 2.8ghz upwards. I have changed the voltage for the cpu up to 1.55 so i know it is not the voltage. I have changed the latencies for the memory to their default 5-5-5-18 at 400mhz and this doesn't solve it, also changing the memory voltage doesnt help. I have fiddled with the graphics card clock and this doesn't help either. My system doesn't crash, it just runs slower when it should be faster obviously, I have had it safetly overclocked to 3.6ghz once playing gta4 although i do not know how, something in my bios - auto or manual, must of changed.. It must be bios related because i have no background processes. Please help because i'm all out of suggestions
cheers
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1.55 is quite high :|

Maybe its throttling down because its too hot ?
1.55 was just an extreme to try it, it was on 1.475 at 3.2 with temps i cant remember but definately below 50c. Cheers for the response
Solved it! For anybody else that has this problem I found that disabling C1E and enabling speedstep has worked! To show how it affected my fps here are the average fps in the far cry 2 benchmark for the small ranch, all settings low, no aa and at 1440x900.

9x266 = 2.4ghz (at default clocks) = 49.67fps
9x310 = 2.8ghz = 65.65fps
9x400 = 3.6ghz (with C1E enabled and speedstep diasabled) = 49.75fps
9x400 = 3.6ghz (fixed C1E disabled and speedstep enabled) = 102.72fps!!

So if anyone else has this problem where your overclock is slower than your default clock try this
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Go to userCP and add system so we can help you out a bit more next time
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Quote:

Originally Posted by milow View Post
Solved it! For anybody else that has this problem I found that disabling C1E and enabling speedstep has worked! To show how it affected my fps here are the average fps in the far cry 2 benchmark for the small ranch, all settings low, no aa and at 1440x900.

9x266 = 2.4ghz (at default clocks) = 49.67fps
9x310 = 2.8ghz = 65.65fps
9x400 = 3.6ghz (with C1E enabled and speedstep diasabled) = 49.75fps
9x400 = 3.6ghz (fixed C1E disabled and speedstep enabled) = 102.72fps!!

So if anyone else has this problem where your overclock is slower than your default clock try this

Those results look too good for just a processor overclock. I expected like 5-6 frames better not 50. especially in Far Cry.
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Quote:


Originally Posted by GSingh
View Post

Those results look too good for just a processor overclock. I expected like 5-6 frames better not 50. especially in Far Cry.

I agree, a 50% processor overclock shouldn't = 100% more performance
the cpu most definately was the bottleneck though and i don't mean by its speed.
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