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E3110 (E8400 Xeon equivalent) acting weird! Need help from experienced Overclockers!

post #1 of 22
Thread Starter 
OK, I just replaced my E6600 with an E3110.

At first I was pleased with it.

My E6600 was OCed at 3.2GHz and I managed to OC my new E3110 to 4GHz.

My score in 3DMark06 went from 14k to 18k.

But the thing is, I can't get the CPU stable at all at anything over 1333 (FSB 4x). I can make 3-4 3DMark06 tests without any issues but my computer keeps crashing and giving my BSOD after 5 minutes of gaming (in Crysis)...

It also crashes within 15 sec of prime95 at 4GHz (1.35 vcore) (prime95 is stable at stock FSB though)

I often get the 0x0000009C error.


I tried lowering the CPU FSB but there's a HUGE fsb hole between 3GHz and 4GHz... (between those the pc won't even post...). What should I try? (Bios is updated)

I have already tried switching and removing video cards and memory sticks and it isn't the problem. Raising the voltage seems to make prime95 last longer (at 1.6V it lasted 7 minutes in prime95 before crashing...).


What would you do if you were me? All the options in the BIOS are still at default (xept FSB and voltages)... is there any options I should try playing with?
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post #2 of 22
Well im not too sure about the 1.6V part, seems a little high to me.
sounds odd that you can run 3dmark successfully multiple times and then it dies in games, it may be the way 3dmark utilises the CPU, but I doubt that very much, because its more CPU demanding :0
What clock can you successfully do everything at?
Find that, then nudge the FSB back up, see what happens.
Sounds like you will have to take this overclock a little bit slower
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post #3 of 22
DUDE, YOU SHOULD NOT GO ABOVE 1.4v WITH THAT CPU!! GET IT DOWN NOW!!
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post #4 of 22
I was about to say, 1.6V is a crazy voltage for that CPU.
Avoid killing your cpu
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post #5 of 22
I am assuming the 1.6v is a typo (that vcore would probably kill a CPU in a few days). Please post all your voltage settings:

Please post all your voltage settings:

CPU: x.xxv
CPU FSB: x.xxv
RAM: x.xxv
SPP: x.xxv
MCP: x.xxv
MCP->SPP: x.xxv
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post #6 of 22
Obviously it's not anywhere close to stable.

What's the RAM running at?
And as the poster above me asked, what about voltages?
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post #7 of 22
Thread Starter 
lol ok I lowered the voltage

I didn't keep it at 1.6 for more than 10 minutes neway .

Here's some infos :



Any idea what I should do or can try?
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post #8 of 22
is your speedstep off? just asking it might become idle in that amount of time
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post #9 of 22
First disabled in Bios the following:

Standard CMOS Features
Drive A: None (If you dont have a floppy)

Advanced Bios Features
Full Screen Logo Show: Disabled

Advanced Chipset Features

sub menu System Clocks
CPU Spread Spectrum: Disabled

sub menu CPU Configuraion
CPU Thermal Control: Disable
C1E Enhanced Halt State: Disabled

Integrated Peripherals
On Board FDC Controller: Disabled (if you dont have a floppy)
Onboard Serial Port 1: Disabled

Then set the voltage to the following:
CPU: 1.35v (special note... this is a safe vcore for the E8400, but the server chip recommends 1.26v correct?) So I am not resposible for any damage from vcore above 1.26v....
CPU FSB: 1.4v
RAM: 2.2v
SPP: 1.5v
MCP: Auto
MCP->SPP: Auto

That should at least keep you stable to a 450FSB with the motherboard.


As for the vcore, the Desktop variants are OK if the vcore is kept under 1.3625v. They are the same core, so the server chip should be OK too. But if you dont want to risk it, set it to 1.26v vcore and see how high you can get the CPU.


---------------------------------------------------------------------------------
Quote:
Originally Posted by XaNe View Post
is your speedstep off? just asking it might become idle in that amount of time
It looks like speedstep is on since his screenshot shows x6 multi.

The options I listed to disable in bios include the C1E function.
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post #10 of 22
Thread Starter 
Hi! Thanks for the help.

I tried putting the voltages you told me :

CPU: 1.35v
CPU FSB: 1.4v
RAM: 2.2v
SPP: 1.5v
MCP: Auto
MCP->SPP: Auto

But My PC won't even post with those at 4GHz... and posts fine at stock voltages...

I haven't had the time to try disabling the other options yet. I'll do it in 2-3 hours and come back with results. But most of them are already disabled IMO.

Also, Intel Speedstep is disabled, should it be turned on?

Thanks
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