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How come no one talks about CPU degradation? My 920 D0 is degrading. - Page 10

post #91 of 178
I get 55 gigaflops minimum on my i5 760
post #92 of 178
Because it rarely happens...? Plus, it's more likely that it's your motherboard that's taking a crap on you rather than your CPU. Or your PSU. Statistically, it's very unlikely that anything about your CPU has changed to affect your ability to clock it higher.
    
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post #93 of 178
Thread Starter 
Quote:
Originally Posted by Tleilaxu Ghola View Post
I honestly think the OC guide needs some tweaking. People just blindly disable EIST and then they run thier new OC 24/7, never throttling down even when idle. Looking at the BIOS settings, with the main power saving feature disabled, one can't help but wonder why issues arise.

On top of that HT is ON, (and of course we don't throttle down even when idle) so we wonder why the chip could get stressed? (No, I am not saying HT is bad, just another potential factor)

EIST is your friend, it is NOT NOT NOT a bad thing.


-TG
Alright, I'll enable speedstep again. And set LLC on AUTO I guess?
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post #94 of 178
It could very well be your motherbaord. I had my 955 at 4 ghz before and then it wouldn't go past 3.8 after a year or so. Eventually my vrms crapped out on me and I had to RMA my mobo. Replacement did 4ghz on the chip again, so consider your mobo or psu crapping out on you instead of your cpu.
    
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post #95 of 178
Thread Starter 
  • Set LLC to Auto (temps went up 5-6C)
  • Ram timings set to 9-9-9-24
  • Intel Speedtech Enabled


This is getting weird, my CPU somehow throttled down itself during load to 2302Mhz (even temps went down as a result). It stayed like this for a minute, then went back to normal 4029Mhz. I don't even remember it doing this before.

edit: crap, it's throttling itself down during load again!

Ignore the high temps (I normally get 60-61C MAX in Linx, but I don't have my fans set to full speed at the moment).




What is going on here??
Edited by i7monkey - 1/26/11 at 3:51pm
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post #96 of 178
Quote:
Originally Posted by i7monkey View Post
  • Set LLC to Auto (temps went up 5-6C)
  • Ram timings set to 9-9-9-24
  • Intel Speedtech Enabled


This is getting weird, my CPU somehow throttled down itself during load to 2302Mhz (even temps went down as a result). It stayed like this for a minute, then went back to normal 4029Mhz. I don't even remember it doing this before.

Ignore the high temps (I normally get 60-61C MAX in Linx, but I don't have my fans set to full speed at the moment).
Not unheard of--if the utility doesn't properly perceive that the CPU needs to be at full capacity, it will cut down the multiplier accordingly. I've seen this happen when running superpi on my sig rig.
Edited by guyladouche - 1/26/11 at 3:58pm
    
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post #97 of 178
Thread Starter 
Quote:
Originally Posted by guyladouche View Post
Not unheard of--if the utility doesn't properly perceive that the CPU needs to be at full capacity, it will cut down the multiplier accordingly. I've seen this happen when running superpi on my sig rig.
So this specific throttling issue is caused by Linx not running properly?

I don't remember ever this happening before. Right now it keeps going back and forth from 4030 to 2302 every now and then, and my gigaflops are at 42 for some reason (the only adjustments I made were ram timings, LLC, and Intel Speedtech, I didn't touch the speed).
Edited by i7monkey - 1/26/11 at 4:01pm
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post #98 of 178
My 2 cents (not worth much).

It sounds like it could be a motherboard or PSU problem. Maybe the PSU voltage is spiking and harming the mobo / CPU? I was also going to tell you to turn on or set LLC to Auto, but others beat me to it.
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post #99 of 178
Quote:
Originally Posted by i7monkey View Post
Alright, I'll enable speedstep again. And set LLC on AUTO I guess?
Speedstep makes most OC systems unstable. Try enabling it only AFTER you get your OC stable. Don't do it yet. It's something you try if you have a stable OC, and many times takes more tweaking or just keeps causing crashes.

You've got some good advice to follow. I agree also with loosening the RAM timings. Memtest isn't an end-all for memory instability.

Listen to the guys with obvious i7 experience, not the random people chiming in with one system under their belt.
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post #100 of 178
Quote:
Originally Posted by i7monkey View Post
So this specific throttling issue is caused by Linx not running properly?

I don't remember ever this happening before. Right now it keeps going back and forth from 4030 to 2302 every now and then, and my gigaflops are at 42 for some reason (the only adjustments I made were ram timings, LLC, and Intel Speedtech, I didn't touch the speed).
No, I don't think you can say it's Linx not running properly--just in the way that whatever algorithm that intel uses to determine CPU load demand is not 100% correct and efficient all the time. It happens on my i3 laptop as well as my S775 desktop if I enable EIST/speedstep/whatever you want to call it. It's just not 100% perfect all the time, that's all.
    
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