**Official e8400/e8500 Retail OC Thread

[Peter949]

Well got it 4.2ghz 8hrs prime stable @ at 1.34v cpu-z 1.3v bios. full batch is q813a126. I sold one same batch and packing date as mine yesterday. That dude is gonna be happy.

[BuBBle.D]

I bought my E8400 2 weeks ago, batch Q809A161. It can do 4200@1.415V set in bios (1.39 DMM). Is this too high for 24/7? Im not scared or anything just wanna know if its safe.

[MrHydes]

guys i have E8500 Q746A363 and i can't set 4.3GHz with less then 1.45v

i have a friend that haves same batch and does 5.1GHz or even more with 1.47v (at least that's what he says)

i might be missing something here...

help me out here, might be NB Voltage; GTL; DRAM frequency; Vcore;
SB Voltage; mem Config (i don't know)

[Leeghoofd]

I bought my E8400 2 weeks ago, batch Q809A161. It can do 4200@1.415V set in bios (1.39 DMM). Is this too high for 24/7? Im not scared or anything just wanna know if its safe.

If ya want to keep it for a long time I would suggest to put it at 4ghz and keep it under 1.4Vcore in bios, if we see the voltages Jupiler announced most of us are running these beauties already out of spec even under 1.4Vcore...

guys i have E8500 Q746A363 and i can't set 4.3GHz with less then 1.45v

i have a friend that haves same batch and does 5.1GHz or even more with 1.47v (at least that's what he says)

i might be missing something here...

help me out here, might be NB Voltage; GTL; DRAM frequency; Vcore;
SB Voltage; mem Config (i don't know)

I think you just lost a friend that would be a golden one to have 5.1ghz at only 1.47Vcore... most guys that breach 5ghz are already over 1.6 Vcore...

I will buy that CPU if he shows me proof

[MrHydes]

I think you just lost a friend that would be a golden one to have 5.1ghz at only 1.47Vcore... most guys that breach 5ghz are already over 1.6 Vcore...

I will buy that CPU if he shows me proof

sorry i was lasy didn't wanted to go check my inbox, the real values he've sent me:

prommy and i get 5.3Ghz at 1.6v and for 24/7 i get 4.8GHz a 1.46v.

i've just sent him a PM, asking for prof of that... meanwhile tell can this be possible?

[BuBBle.D]

If ya want to keep it for a long time I would suggest to put it at 4ghz and keep it under 1.4Vcore in bios, if we see the voltages Jupiler announced most of us are running these beauties already out of spec even under 1.4Vcore...

But then again we were running our 65nm conroes out of spec too and almost none died.

[flutie98]

Well got it 4.2ghz 8hrs prime stable @ at 1.34v cpu-z 1.3v bios. full batch is q813a126. I sold one same batch and packing date as mine yesterday. That dude is gonna be happy.

I just got a Q813A124 from the compusa, looks pretty promising

[HDCHOPPER]

ok been trying to keep up in this thread but been gone for 2 weeks !!

so which is better od the 3 E8400 eye picked up ?
Q811
Q814
Q751

anybody keeping stats on all the batches ??

thanks in advance

[Hughyhunter]

ok been trying to keep up in this thread but been gone for 2 weeks !!

so which is better od the 3 E8400 eye picked up ?
Q811
Q814
Q751

anybody keeping stats on all the batches ??

thanks in advance

Get the latest batch of course!

[Dagalidis]

ok been trying to keep up in this thread but been gone for 2 weeks !!

so which is better od the 3 E8400 eye picked up ?
Q811
Q814
Q751

anybody keeping stats on all the batches ??

thanks in advance

I vote for Q814...
Watch here Why....
http://www.xtremesystems.org/forums/...d.php?t=186318

[HDCHOPPER]

we haaaaaaaa that makes me very happy !!
thank you Dagalidis

[Viss]

guys i have E8500 Q746A363 and i can't set 4.3GHz with less then 1.45v

i have a friend that haves same batch and does 5.1GHz or even more with 1.47v (at least that's what he says)

i might be missing something here...

help me out here, might be NB Voltage; GTL; DRAM frequency; Vcore;
SB Voltage; mem Config (i don't know)

Your friend must have found the best Wolf out there What cooling? This is me Q746A363, not bad but not a gem either:

Air:


FSB air:


Dry ice:

http://valid.x86-secret.com/show_oc.php?id=322717

[LagunaX]

Any more q814 superclocks on air or was that just a golden chip?

[Hughyhunter]

Dry ICE!? NICE! Where did you get the cooler from? Did you make it? Have any pics?

[MrHydes]

Your friend must have found the best Wolf out there What cooling? This is me Q746A363, not bad but not a gem either:

Air:


FSB air:


Dry ice:

http://valid.x86-secret.com/show_oc.php?id=322717

what mems do you have...
i would to see some bios settings if you don't mind, so i can compare
with my own...

[Viss]

Ill PM you the bios settings, maybe a bit OT.

[Mykou]

finally got that damned X48 stable , needed little more volts than my P5K blackpearl but didn't want to mess with gtl settings

Q804A249 4.ghz 1.25v load / asus P5E3 premium bios 402 beta / Cellshock 12800 @1780 mhz 1.96 /Thermalright 120

All gtl's AUTO / VTT 1.28 vmch 1.41 ( think I can lower it more ) /calibration line ON /CPU PLL 1.52v

this board seems found of driving" alone

[Vatos_locos]

does Gtl's make any difrence on Duo Cpu's ?

[Mykou]

does Gtl's make any difrence on Duo Cpu's ?

I think they could help you get less vcore in o/c but didn't find anything well documented that I could understand well on asus boards

whatever I tried on this mobo got random freezes or bsod or failed under prime till I let them auto , tired I was ..

here are some links :

http://edgeofstability.com/index.html

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

http://ocxtreme.org/main/?q=node/1

[mrcape]

does Gtl's make any difrence on Duo Cpu's ?

It helps me with 8x and 8.5x with FSB > 490. For 9x it was better on auto.

With 500FSB, VTT 1.15v - 1.20v I set CPU GTLs to 59, NB 59 as well. This worked for me for running 3d and 32m up to 8.5x545fsb or 4635mhz with only 1.4vcore. Good for air benching I guess.

This is on the DFI UT P35. May be much different on other boards/bioses.

[Mykou]

It helps me with 8x and 8.5x with FSB > 490. For 9x it was better on auto.

With 500FSB, VTT 1.15v - 1.20v I set CPU GTLs to 59, NB 59 as well. This worked for me for running 3d and 32m up to 8.5x545fsb or 4635mhz with only 1.4vcore. Good for air benching I guess.

This is on the DFI UT P35. May be much different on other boards/bioses.

yeah , with most asus ( don't remember ) NB gtl is min 0.61

[Vatos_locos]

thanks i have an Abit Board and i cant get stable 8x500 at 1.27V
wile i can run 422x9.5 with 1.27 stable 8h prime
my chip with lower multy needs higher Vcore and i can't understand why :/
i'am going to try the gtl's and see if anything better happens

[Gr1mR34p3r]

Q813A168, any good?

[dr.noob]

i got a Q807A367

[Mykou]

i got a Q807A367

some results ?
4 ghz stable with how much voltage ?