**Official e8400/e8500 Retail OC Thread

[antari]

Picked up a nice retail E8400, tested for 600FSB on dice.

Batch is Q807A191.

Air tests to follow.

[Mtrx]

Wanted to post this up, seems VID's might jump a little...

Yeap, vid of coretemp rises this one from 1,050v to 1,1625v, same as realtemp now

[Darkatom]

Heres my 2 month old q748A e8400. I was finally able to reach the same inital oc with less vcore after going through the "burn in" period.
Original required vcore was 1.344 which seemed to be the average for this batch.

[GraduS]

6хE8500 814. All of them can do >fsb580 on air. mobo dfi p35.
superpi 1M 1.3v air:

1. vid=1.22 4155
2. vid=1.22 4090
3. vid=1.22 4190
4. vid=1.22 4280 - I have chosen this.
5. vid=1.12 <4000
6. vid=1.13 4240

4 cpu stabile in linpac 4000 1.28-1.3v. 5300 superpi 1m on bad SS 1.73v:
http://www.hwbot.org/result.do?resultId=740950

[Lil'ManComputer]

Hi! What's the maximum pll voltage for the 45nm cpu-s, that should be given without damageing the core?

[Leeghoofd]

Hi! What's the maximum pll voltage for the 45nm cpu-s, that should be given without damageing the core?

Most will say 1.6 mate... I (till now) never had to go over 1.5 to get 500FSB stable...same counts here for CPU VTT (or FSB Term voltage) 1.2 here... lowest is the best

[Lil'ManComputer]

Most will say 1.6 mate... I (till now) never had to go over 1.5 to get 500FSB stable...same counts here for CPU VTT (or FSB Term voltage) 1.2 here... lowest is the best

Thnx dude! And what about the gtl reference voltages( NB and CPU )?

[cstkl1]

Most will say 1.6 mate... I (till now) never had to go over 1.5 to get 500FSB stable...same counts here for CPU VTT (or FSB Term voltage) 1.2 here... lowest is the best

eh pll voltage depends on mobo for me

striker 2 formula 1.6
dfi x48 1.5
etc

[Leeghoofd]

eh pll voltage depends on mobo for me

striker 2 formula 1.6
dfi x48 1.5
etc

Indeed it does, with the Maximus you could set 1.5 yet it was 1.6 (overvolted) he has to try the lowest possible...

[ex2cib]

Q808A477

4.1 @1.344

I still think it has some more left.

i've only been playing with the chip for half a day. still have to get my memory figured out

[ScottFern]

Just wanted to let you guys know my e8400 OC has degraded in the last 2 days. Random reboots and tonight I finally ran an Orthos Smal FFTs test and as I suspected the machine rebooted. So I took my OC down from 3.9 to 3.5 and took my voltage down from 1.35v to 1.16v. Sucks!

Any other CPUs that OC better than these damn e8400?!

[Hor$eman]

I've had my E8400 at 4050 Mhz @ 1.328 for months with no problem.

[ScottFern]

I have lost all OC....I am back to stock speeds. Gay.

[Hor$eman]

What was your max voltage, PLL and VTT set at, or did you leave the settings on auto? I've run mine up to 1.58v with no problems other than keeping it cool enough when benching (on air).

[yankee]

Have any of you tried 6.5 multi? My P5K SE cannot set this multi. I've tried 2 different bioses.

[Leeghoofd]

I have lost all OC....I am back to stock speeds. Gay.

Give it some more juice and you will prolly be fine... most users experienced this and once the burn in is done most need to add some Vcore... after that it is rockstable...

Same here with my E8500, needed for 4ghz 1.28 now I'm on 1.29 and it's okay now

[Lil'ManComputer]

I set the PLL and VTT voltage at the minimum( 1,1V and 1,5V ) as you suggested yesterday and so I managed to hit 4100Mhz( 507x8 ), but its not primre stable, cause after 1H and 15 min the prime95 app stops, erery time at the same iteration. Before this it was stable at 4050Mhz,( vcore 1,36V pll 1,6 VTT 1,4 CPU, NB 1,55V GTL 61%, NB GTL 61% ). I raised the fsb up to 513, after 10 minutes the system froze as I started the fft, or Vista got deadlocked, ot threw blue death, setting the vcore higher to 1,38V didnt, but lowering that voltages you said helped a lot. But its not stable yet as i said, I tried NB as well at 1,55V and 1,4V but it didnt seemed to have an effect. I messed around with the glt references, but it didnt seemd to work. What do you think what shuld I set, or this is the endof this CPU?

mobo: p5k-e ( max fsb 540 )
cpu: e8200 (max fsb 540 I dont know maxbe it could be higher cause the mobo is off at 540 )
psu hx620
ram: ballistix 1066(1:1, cl5, blend stable 1225 with 2,35V)
cooling: TRUE+2x120mm fan
load temps : core temp 60°C, real temp 50°C( its possible that the sensor is damaged, or bad cause it dose not display any voltages under 45°C and the CPUTIN( mobo sensor) is 60°C as well, i guess the real value should be about 75°C )

[selloutkingz]

Q807A213 @ boxed cooler

shortrun small fft for vcore on dk p35

[The[R]eaper]

Im pretty happy batch Q13a499. running boinc and FAH. Need to work on ram now.

[Marvin]

pretty stable with this lovable chip :

nice chip....

[zfactor]

6хE8500 814. All of them can do >fsb580 on air. mobo dfi p35.
superpi 1M 1.3v air:

1. vid=1.22 4155
2. vid=1.22 4090
3. vid=1.22 4190
4. vid=1.22 4280 - I have chosen this.
5. vid=1.12 <4000
6. vid=1.13 4240

4 cpu stabile in linpac 4000 1.28-1.3v. 5300 superpi 1m on bad SS 1.73v:
http://www.hwbot.org/result.do?resultId=740950

selling any of them ??

[kagula323]

hy guys ... I can buy an E8400 Q807A367 / E27439-001 ... what is ur experience with this batch? Is it overclockable?

[zfactor]

807 are some of the best there is..

[ToyTen]

I have that stepping and I'm pretty glad yes
not one of the best at all but very nice I'd say

[Ka0sX]

Well guys i decided to pick myself up an E8500 today to see if it was a good batch or not and turns out its not to bad at all here is a screenie

I'am going to try for higher in alittle while


Power Supply Antec TPQ 850

Motherboard Rampage formula 308 Bios

Ram Team Xtreem Pc8500 1066

CPU E8500 Batch #Q815A570 "Stock VOLTS" 1.25 Bios 1.24 load