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[MOD] LGA775 Support For LGA771 Xeon CPUs - Page 271

post #2701 of 12504
patentman is obviously trolling. why would anyone be so against finding prime numbers? "Your cpu will not ever run in such conditions", that doesnt even make sense. 100% cpu/high mem 24/7 is a properly functioning computer
post #2702 of 12504
Quote:
Originally Posted by hepovac View Post

After putting Xeon E5440 (with sticker) in Asus P5Q Deluxe I've had programs crashing, like antivirus, Flash player, Windows desktop manager, RealTemp...
I did three Prime95 runs today, first one reported an error after 1h 7min,second one under a minute and the third one in 2 minutes, error was:
[Mar 20 22:23] FATAL ERROR : Rounding was 0.5, expected less than 0.4
[Mar 20 22:23] Hardware failure detected, consult stress.txt file.
That was with every BIOS CPU setting on auto.
Temperatures were normal, highest was 49°C, I did get higher when I tried OC-ing, up to 59°C but I got nowhere with that.
Before E5440 I had a E6600, E8400 and E5345 runing with the same mobo and RAM (Kingston HyperX 1066Mhz), never crashing anything.

So to me this seems like a case of a bad CPU, am I wrong?

What you are describing sounds like RAM related errors.

I usually got these errors when my RAM exceeded its maximum MHz spec. HyperX1066 will usually do around 1100 Mhz stable. Either lower your RAM overclock, or increase DRAM voltage, or set FSB:DRAM to 1:1.
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post #2703 of 12504
Had my E5450 run prime95 last night and it has been stable for over 13 hours, so i think im good now.
Vcore during load has been switching between 1.280v and 1.264v in cpu-z. Temps seem to be good too. Had my cpu heatsink fan run at 1200 rpm and all my other case fans at 500 rpm. Room temperature is about 21-22 Celsius.


Edited by Rutger - 3/21/14 at 6:02am
post #2704 of 12504
Quote:
Originally Posted by paujmos View Post

patentman is obviously trolling. why would anyone be so against finding prime numbers? "Your cpu will not ever run in such conditions", that doesnt even make sense. 100% cpu/high mem 24/7 is a properly functioning computer

His system just as not crashed during an intense gaming session yet. When it does he'll learn. tongue.gif

On my friends system we upgraded his CPU to a X5460. We ran prime with it stock and good thing too because it was not 100% stable. We had to turn off some of the power saving features because they were setting the voltage wrong.
post #2705 of 12504
Quote:
Originally Posted by xxpenguinxx View Post

His system just as not crashed during an intense gaming session yet. When it does he'll learn. tongue.gif

On my friends system we upgraded his CPU to a X5460. We ran prime with it stock and good thing too because it was not 100% stable. We had to turn off some of the power saving features because they were setting the voltage wrong.

Obviously you have not read what I wrote.
I always leave room, always take care running low Vcore so degradation never occurs, ambient temp rise does not affect system, etc.
Still I run 4Ghz... if you can think about it.

Obviously you have a little experience and rely on something does not show the whole picture.
You can learn a few things if you have the willing to and not think you know everything just cause you trust Prime stability while I do not.

But I take that as a compliment, so no hard feelings. Still you may know better, but first listen to someone who overclocks more than 15 years, has a 4Ghz 1.176V, has a Quad Core @0.95V wink.gif
Edited by patentman - 3/21/14 at 8:19am
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post #2706 of 12504
I did read what you wrote, but it contradicts your first statement.

Edit,

Actually you never did prove your system is stable.
Edited by xxpenguinxx - 3/21/14 at 9:16am
post #2707 of 12504
My intention is to help out people going more relaxed on this mod.
That`s why I have uploaded more than a dozen modded bios by myself.
I like this mod.

It made my systems running better and extended a lot the total upgrade time.
I had said in the past "who buys an old tech, a HD6450, so to have GPU Adobe Flash accelaration when there is a L54xx, E54xx, X54xx for a fraction of the cost of this crap GFX"
And I did, I kept my HD3450 w/out GPU acceleration that consumes just a tad power and with those money I installed a L5420 that consumes almost the same as my undervolted E5200 ...

As for OC my main point is to be more relaxed about it. Even if you run Prime and passes still I`d suggest be generous and leave some room left.
Room temp here is 20°C now but it will be over 32°C in summer. Above 28°C the A/C takes over, for a 26°C temp, as outside there is as hot as 45°C
If it is Prime stable it must stand always true.
If it is stable for me it means it is always. My cpu can run 470FSB... and works at 440FSB. If that isn`t stable then nothing is.
But I did not run Prime, OC is much easier if you don`t seek the last drop of juice. Except if you have got a bad overclocking cpu or a cheap model like E5405 and try for the absolute max it can give.
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post #2708 of 12504
Quote:
Originally Posted by skora View Post

I thought I had a difficult CPU on a P5Q PRO until I pulled it out and saw I must have bent a few pins and actually broke the tip off of one. The CPU was solid at stock speeds, but took a ton of voltage to get any overclock and I'm only talking 100-200mhz. Adjusted the bent/broken pins best I could and then it hit 3.4ghz. I bought a 750i FTW that I'll test to see what the cpu can really do and that will give me another look at the pins. If it can be adjusted more, I hope to get to the full potential of the chip.

Check the pins on the mobo. And since the CPU is out, check the sticker.

Checked the pins, everything looks nice, no signs of broken or bent pins, reseated the sticker again, still getting Prime95 error and Chrome crashed.
Quote:
Originally Posted by Arxontas View Post

What you are describing sounds like RAM related errors.

I usually got these errors when my RAM exceeded its maximum MHz spec. HyperX1066 will usually do around 1100 Mhz stable. Either lower your RAM overclock, or increase DRAM voltage, or set FSB:DRAM to 1:1.

My RAM is not overclocked, I've tried running 800MHz and 1066MHz with both auto and manually set voltages and timings, same thing with every setting. Also I've run Memtest, 4 cycles and had no errors. But still programs crash.

Thnx both for replying.

I bought this CPU from an eBAy store and they have a return policy, I'll contact them and hopefully I'll get another working one or at least my money back.
post #2709 of 12504
Has anyone else noticed the price of 771 Xeons creeping up since this was discovered??
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post #2710 of 12504
@hepovac
Run your system with your old cpu and see if it is still problem free then.

And at what settings were you running that E5440?
Quote:
Originally Posted by tipo33 View Post

Has anyone else noticed the price of 771 Xeons creeping up since this was discovered??
Ye, you really have to wait and look for good deals on these cpu's nowadays.

But this can't last forever. More and more 771 socket servers will be taken out of service so the supply will increase and with the sandybridge i5 cpu's + mobo's getting cheaper the demand for this mod will go down. Imo this 771 to 775 mod is only worth it if it is cheap.
Edited by Rutger - 3/21/14 at 4:52pm
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