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E5200 - Overclocking Thread - Page 99

Poll Results: Should the thread name be changed to E5x00 Overclocking Thread

Poll expired: Jan 24, 2009  
  • 58% (39)
    Yes, Change it to E5x00 Overclocking thread
  • 41% (28)
    No, Lets keep it how it is
67 Total Votes  
post #981 of 4653
Alkora, do you get the same result with stock FSB? What prime stress tests have you tried it on?

Quaaark, very nice FSB sir. I would leave the FSB as high as you feel comfortable with NB volts and just adjust multi to raise and lower your FSB until you find a good 24/7 sweet spot. With the vcore you have been posting I would suggest maybe a 350 fsb with a 11 multi at around 1.36/1.38v for a nice 3.85Ghz 24/7OC.

Out of no were, I've been hit with instability. I started off tonight by rebooting to change settings to all stock and test my ram. I moved everything back to auto except my mem which I fixed to default 800 4-4-4-12 2.2v. Apon restarting, opening Orthos and speedfan I clicked a Large FFT in Orthos and noticed my stock load temps where 51C. Then I looked at my vcore. O.O 1.54v OMG! At least I know 1.54v isn't a sudden death to my chip. Never really wanted to find out. I took this quick screenshot and rebooted. Apon reboot my BIOS said my currant setting was 1.2v, but went ahead and took it off auto and set it to 1.2v. Though, it does make me wonder. Why 1.54v? hmmmm
    
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post #982 of 4653
Well, I went a bit overboard tonight.. I kept on thinking that this thing could go faster. Then I couldn't stop, and here I was.



I guess I lucked out and got an really amazing chip, considering that a newbie like me got it so far. validate
Edited by quaaark - 1/8/09 at 11:20pm
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post #983 of 4653
Hi all,

I have an E5200 I purchased almost as soon as they came out (heh) and finally got it onto an Asus P5Q Pro board. I don't have much of a pictorial record to show you all, except for an HWMonitor output showing idle temps, here -- (click the link to view if there's an issue)



Note that Core #0 is "stuck" at 39 C. Core #1, however, reads pretty reasonably. In fact, if I Prime95 this thing, Core 0 starts to read properly too, as both cores peg out at around 43 degrees C.

This is an OC to 3.0 GHz; my CPU-Z for this is at this link. Basically I left everything at Auto except for Disabling Spread Spectrum (I have read that enabling this causes radiofrequency interference sometimes, and since I have a wireless router I'd prefer to not disrupt the signal).

The voltage readout by CPU-Z is 1.160-1.168 V. Stock voltage readouts at 2.5 GHz ranged from around 1.13-1.15, depending. I think the Vdroop is more pronounced at lower frequencies, perhaps.

All in all, a pretty easy overclock except for when I tried to get a little too ambitious and caused Prime95 to crash all over the place when I took it up to 266 MHz on the FSB. After backing it off to stock and slowly climbing back up - 220, 230, 240, and prime95-ing for half an hour at least each time, I was able to ensure stability and in fact, at 240, I let it go for over an hour and a half before I terminated the P95 and certified it stable-enough-for-my-purposes.

I'll probably try a 12-hour prime95 at some point, but I am not eager to be away from the computer in case something fails. $100 is not the end of the world for a CPU, but it's still money I'd rather not spend replacing one that's irrevocably broken, heh.
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post #984 of 4653
I too have a stuck sensor, it never goes below 32 degrees, and when raises, it doesn't move as much as the other one. Not really a big deal.
Edited by quaaark - 1/8/09 at 11:14pm
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post #985 of 4653
Quote:
Originally Posted by quaaark View Post
I too have a stuck sensor, it never goes below 32 degrees, and when raises, it doesn't move as much as the other one. Not really a big deal.

A lot of the 45nm cpus have this behavior. My 2 E5200 do that, one of them has both thermal sensors stuck at 40 on idle and the other one has one stuck at 40.

One thing to note, is that the sensors are not made to report temps but to protect your cpu when the delta temp gets close to tjmax. So, the further away you get from tjmax and the les accurate becomes the temps. According to Intel, all temps reported with a delta of 50 or more from tjmax are meaningless. In other words, someone could having a cpu reporting 28c on idle is not an indication that his/her processor is idling at a lower temp. than an other user having a cpu reporting an idling temp of 37c or 40c.
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post #986 of 4653
Quote:
Originally Posted by quaaark View Post
Well, I went a bit overboard tonight.. I kept on thinking that this thing could go faster. Then I couldn't stop, and here I was.



I guess I lucked out and got an really amazing chip, considering that a newbie like me got it so far. validate
What VID does your Coretemp say u have?
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post #987 of 4653
Quote:
Originally Posted by quaaark View Post
Well, I went a bit overboard tonight.. I kept on thinking that this thing could go faster. Then I couldn't stop, and here I was.



I guess I lucked out and got an really amazing chip, considering that a newbie like me got it so far. validate
Holy pijamas, Batman! 1.488V ....i hope youre happy cuz u bummed me out now

U think you can do more? Or did you hit a wall?

Quote:
Originally Posted by glussier
One thing to note, is that the sensors are not made to report temps but to protect your cpu when the delta temp gets close to tjmax. So, the further away you get from tjmax and the les accurate becomes the temps. According to Intel, all temps reported with a delta of 50 or more from tjmax are meaningless. In other words, someone could having a cpu reporting 28c on idle is not an indication that his/her processor is idling at a lower temp. than an other user having a cpu reporting an idling temp of 37c or 40c.
Good to know... makes perfect sens for the ridiculous idle temps we're all getting...

P.S. lol we should really put our CPU VID's into our signatures .... batch too if you know it.... just an idea
Edited by miloshs - 1/9/09 at 3:22am
    
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post #988 of 4653
Quote:
Originally Posted by minu94 View Post
What VID does your Coretemp say u have?
Coretemp says 1.0875v

miloshs It might be able to go faster, but I wasn't too comfortable working already above the absolute maximum.. maybe another day
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post #989 of 4653
Can you at least force the RAM to be "DDR2-667"? I use that trick when overclocking to protect the RAM from going wonky due to running too fast.

It so happens that divider makes my DDR2 run at 800 when my FSB is 240 MHz, so that's a nice coincidence.
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post #990 of 4653
Quote:
Originally Posted by haste View Post
the ram i have is rated to run at 1066 so why would i want to downclock it that much? is there a reason? ive been running amd socket 939 stuff for the past 3 years, so intel overclocking on 775 is totally new to me...its foreign.

any help u all can give me would be appreciated.
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