**Official e8400/e8500 Retail OC Thread

**ReverendMaynard** · 07-20-2008, 09:03 AM

not prime stable. Still tweaking.

**Copenhagen69** · 07-20-2008, 10:32 AM

here is mine ...P95 stable for 8 something hours ... just the max temp it got up to 67C is kinda high i think ... but it idles at 44C

@ReverendMaynard
dang 1.5V ... you going to run it 24/7 with that much juice?

**KingOfToasty** · 07-20-2008, 11:56 AM

Originally Posted by Copenhagen69

here is mine ...P95 stable for 8 something hours ... just the max temp it got up to 67C is kinda high i think ... but it idles at 44C

@ReverendMaynard
dang 1.5V ... you going to run it 24/7 with that much juice?

I'm curious. Have you tried running it stable with lower Vcore yet? 1.36 just seems a bit high for 4000 Mhz on these chips. I'd be really interested to see how low you can take your Vcore and keep it stable at that speed.

**zlojack** · 07-20-2008, 12:04 PM

Originally Posted by Copenhagen69

here is mine ...P95 stable for 8 something hours ... just the max temp it got up to 67C is kinda high i think ... but it idles at 44C

@ReverendMaynard
dang 1.5V ... you going to run it 24/7 with that much juice?

That seems pretty hot. What are you using for cooling?

**Copenhagen69** · 07-20-2008, 01:12 PM

@king
ya im slowly working my way down the V totem pole at the moment ... just got 1.35V and ran OCCT for the hour long test and passed with max of 64C load
so i think tonight i should have it finished with the lowest stable voltage i can

im running e8400 batch Q815A181 what kinda volts do you think i should be able to boot up with?

@zlo
TRUE120 extreme

**zlojack** · 07-20-2008, 03:22 PM

Hmm...those temps seem pretty high for such a good cooler. Is the cooler flat? I know that I had to lap mine (it's now in a secondary rig, keeping an E4500 super-cool).

**Copenhagen69** · 07-20-2008, 03:49 PM

not sure as to how flat it is .... i guess im going to have to look ...
what should i be getting on a stock 3GHz temps then? any ideas ...

**KingOfToasty** · 07-20-2008, 06:35 PM

Originally Posted by Copenhagen69

not sure as to how flat it is .... i guess im going to have to look ...
what should i be getting on a stock 3GHz temps then? any ideas ...

Depends a lot on what your ambient temps are I guess, but in a 80 F room (not sure what that is in C) mine is running about 36-40 idle and 58-60 under load. But that's at 4000 Mhz

**Copenhagen69** · 07-20-2008, 06:37 PM

hmmm my temps are about 8C higher it seems ... from your idle ... and about 5C higher on load....

my ambient temp is 87F (30C)

**zlojack** · 07-20-2008, 06:56 PM

Originally Posted by Copenhagen69

hmmm my temps are about 8C higher it seems ... from your idle ... and about 5C higher on load....

my ambient temp is 87F (30C)

30C ambient inside!!! Wow, you must be roasting!

That could explain the temps. But definitely try to walk those volts down, as we've seen some good results from that batch.

**Copenhagen69** · 07-20-2008, 07:39 PM

so far its lookin like 1.31V BIOS and 1.29 CPU-z is non stable and about 1.33V BIOS and 1.31V CPU-z is about the lowest i think i can get ... ill keep running some tests and see ...

**memory** · 07-21-2008, 12:08 AM

So far, anybody tested E0 stepping for E8400 or E8500?

**IN7OX** · 07-21-2008, 12:35 AM

Originally Posted by philbrown23

my E8500 has a 1.165V VID and can hit 4.7ghz on water with 1.66v (in bios) 1.625V (real)

could you please post you bios settings and revision as i am unable to get my 8500 stable above 475fsb on my maximus extreme
thanks

**Pisklink** · 07-21-2008, 06:01 AM

Originally Posted by Kilyin

FSB termination voltage.

What's its purpose? Is it some sort of upper boundary which can be set to safeguard the maximum tolerated voltage?

**HDCHOPPER** · 07-21-2008, 06:54 AM

Originally Posted by memory

So far, anybody tested E0 stepping for E8400 or E8500?

havent seen one yet longsiew

**ReverendMaynard** · 07-21-2008, 07:05 AM

Originally Posted by Copenhagen69

here is mine ...P95 stable for 8 something hours ... just the max temp it got up to 67C is kinda high i think ... but it idles at 44C

@ReverendMaynard
dang 1.5V ... you going to run it 24/7 with that much juice?

sure. if it dies it dies. Never goes over 55C so I'm not to concerned.

**Zeus** · 07-21-2008, 08:30 AM

Originally Posted by Pisklink

What's its purpose? Is it some sort of upper boundary which can be set to safeguard the maximum tolerated voltage?

Have a read here:

http://www.thetechrepository.com/showthread.php?t=87

**Kartoff** · 07-21-2008, 10:47 AM

I had one question...
What i have to do to go over 3600MHz with E8400 stable ? I try everything but without success

Max voltage i tried is about 1,39v. My CPU need 1,3 volt to run at 3,6GHz stable... I cant even think about the volts needed by this CPU to run at 4 GHz

Maybe i had most sh1t E8400 in the world with wall at 3,6...

**Pisklink** · 07-21-2008, 10:54 AM

@ Zeus

I will, thanks for the link.

**Copenhagen69** · 07-21-2008, 10:59 AM

Originally Posted by Kartoff

I had one question...
What i have to do to go over 3600MHz with E8400 stable ? I try everything but without success

Max voltage i tried is about 1,39v. My CPU need 1,3 volt to run at 3,6GHz stable... I cant even think about the volts needed by this CPU to run at 4 GHz

Maybe i had most sh1t E8400 in the world with wall at 3,6...

what volts are you running your ram at... and what is your ram rated for?

**Kartoff** · 07-21-2008, 11:15 AM

You can read my signature for info (2x Corsair TWIN2X4096-6400C4DHX)... RAM is running now at 1081MHz 5,5,5,15 PL8 at 2,1v. stable... The maximum stable i reached with this RAM is 1180MHz 5,5,5,15 @ 2,12v. on P5K-E Wi-Fi witch i still have but dont use...

**Copenhagen69** · 07-21-2008, 11:18 AM

have you tried bumping up your NB volts just a smidge ... like .1 or so ... and see if that gets your anywhere?

**Kartoff** · 07-21-2008, 11:25 AM

Originally Posted by Copenhagen69

have you tried bumping up your NB volts just a smidge ... like .1 or so ... and see if that gets your anywhere?

I thing NB volts is not a problem i run it @ 1,28v... As i say there is no position in the BIOS that i do not try to tweak but with no luck... I can run this board at 539 FSB but everytime i need to calculate to be sure i not go over 3600 - 3650 MHz

I saw most of the people can run 4GHz or more witch i want too but im still unhappy...

**BluePilot** · 07-21-2008, 01:03 PM

Just did my first overclock ever. It was really fun.

I am stable with my q807a067 e8500 at 510fsb/4330Mhz. Vcore= 1.26

Passed 1 hour of occt.

Beginners luck I guess

**LagunaX** · 07-21-2008, 01:08 PM

Originally Posted by Kartoff

I thing NB volts is not a problem i run it @ 1,28v... As i say there is no position in the BIOS that i do not try to tweak but with no luck... I can run this board at 539 FSB but everytime i need to calculate to be sure i not go over 3600 - 3650 MHz

I saw most of the people can run 4GHz or more witch i want too but im still unhappy...

Try 1.4v for the northbridge - for fsb >400 <500 it is a proper setting.
Lock your pci-e to 100.
Of course disable eist and thermal throttling.

Thread: **Official e8400/e8500 Retail OC Thread

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