**Official e8400/e8500 Retail OC Thread

[Lu(ky]

My E8400 seems to have a 9.5 multiplier?? I just had enough time last night to get it installed but all the computer did was beep really fast. about 3 beeps/sec continuously and since it was after 10pm already i just went to bed. Wasnt going to start troubleshooting at that time.

So this morning I unplugged everything except keyboard and video and it started right up. After I set the BIOS (bios was showing a 9.5 multiplier also) and all to a FSB 400 and booted it i saw the post screen said 3.8Ghz. I only let it hit the desktop then shut down cause I have to do this work thing. I though the E8400 was locked.

I set the Vcore to 1.36 in bios. CPU -z read my voltage .04 less then waht bios is set at so

vcore 1.32
FSB 400
Memory all auto
Vmem +.2
Vfsb +.1
Vmch +.1

Booted right up at 3.8Ghz no problem

I will try some tweeking over the next couple nights until I can post some screenshots. Maybe get in the database. But I wanted to give an update. I was soo way past due for a good CPU.

My last one did the same thing but was not showing the extra .05 in CPU-Z so in the BIOS you have to disable it. I thing our mobo are getting confused with the e8400/e8500 cpu's. Now I have a e8500 and it shows the same thing but this time it post in CPU-Z.

[little_scrapper]

My last one did the same thing but was not showing the extra .05 in CPU-Z so in the BIOS you have to disable it. I thing our mobo are getting confused with the e8400/e8500 cpu's. Now I have a e8500 and it shows the same thing but this time it post in CPU-Z.

I hope i do have the 9.5x so i can get higher clock without hitting a wall on memory or whatnot. I will be playing with it tonight, maybe if I can get it all square i can let some orthos run all night

I am almost more excited to finally get to push my ballistix. With the allendale here my board wouldnt boot at any multi over 2.66 unless I was at 200fsb then I could boot at 4xmemory. what a waste.

[Dimek]

OK, stability confirmed (for me) - 5hrs Orthos small FFTs
480@9=4320MHz @1,3500Vcore (bios) and 2x2GB mem @1152/5-5-5-15/2,0V (bios)



SuperPi1MB: 10.822s

[hieuhef]

so, it seems that 4ghz is more than a commonly reached speed on the e8400..

and as far as the oem/retail question goes, isn't their worth batch dependent? aren't e8500 slightly higher binned chips, meaning their performance increase is usually negligible?

[BLHealthy4life]

OK, stability confirmed (for me) - 5hrs Orthos small FFTs
480@9=4320MHz @1,3500Vcore (bios) and 2x2GB mem @1152/5-5-5-15/2,0V (bios)



SuperPi1MB: 10.822s

wow! That is one hell of a chip you have there!!

What GTL voltages and PLL voltage?

[BLHealthy4life]

.....I am still learning the ins and outs of my CPU here.
it OC's insanely, but getting stable is the hard part so far.
these are very jittery little processors.
alittle voltage off, and you will be unstable. yet they boot at almost any speed you set them at.

OMG , exactly! You hit the nail on the head with those comments.

I am discovering this as we speak.....

[Lu(ky]

OK, stability confirmed (for me) - 5hrs Orthos small FFTs
480@9=4320MHz @1,3500Vcore (bios) and 2x2GB mem @1152/5-5-5-15/2,0V (bios)



SuperPi1MB: 10.822s

Very nice OC and CPU you have there...

[LyP0]

these are my results.
I know this aint a E8400 or E8500 but it the same core though



I think that's a decent speed for that vcore




this is my max for now.

[little_scrapper]

My E8400 Booted up at 475 x 9 = 4.27 Ghz!! That is as high as I have tried yet, Im sure it isnt stable but I just wanted to see it boot because I havent had ANY time to tweek yet. I wonder if I could run it like this on my Ninja? hehe

Can anyone give me a Vcore point to measure from on my mobo? I dont trust the bios OR the software. I'm interested if I could give it enough voltage to stablize it without worrying too much about burning it up.

Whats is the consensus for stable? Orthos or prime? 12 hours? ? ?

[HDCHOPPER]

965 chipsets are great arent thay ... congrats on your oc

everyone has a different view of stable but for me it's 24 hours of gromacs core testing

have had plenty of "stable" (orthos small fft's) clocks before and then go to fold and crash ! folding makes pageing & it's brains work not just volts and heat

[LogAn'sRun]

this may be inane, but would there be a benefit of going from 6850 to one of the 8x00 models? If so, which one? Have an IP35pro now and was thinking of changing to the IP45 instead (if that matters). . ..

[Leeghoofd]

these are my results.
I know this aint a E8400 or E8500 but it the same core though
this is my max for now.

Nice CPU mate, batch nr plz ? But would love to see more tests as 1mb Pi run can be done on a pretty unstable system

this may be inane, but would there be a benefit of going from 6850 to one of the 8x00 models? If so, which one? Have an IP35pro now and was thinking of changing to the IP45 instead (if that matters). . ..

If your current cpu also does 4ghz, no need to step up at the moment... if not, 4ghz is a breeze with these Wolfdale CPU's , if you get a good batch you can do 4ghz sub 1.3volt...and you get a bit more cache... On P45 these crazy cpu's do 500-600FSB without hesitation...

[Dimek]

wow! That is one hell of a chip you have there!!

What GTL voltages and PLL voltage?

Bios settings
CPU VID Control: 1,35
CPU VID Special Add: Auto
DRAM Voltage Control: 2,0
SB/CPU PLL: 1,51
NB: 1,417
CPU VTT: 1,1
Vcore D.C.: Enabled
Clockgen Voltage: 3,45
GTL+: Strong
Host Sleww Rate: Weak
GTL Ref Voltage: Enable
CPU GTL 1/2: 65
CPU GTL 0/3: 64
NB GTL: 60

[PCTools]

Just got my E8500 Batch Q813A359. Looks like it is fair to decent from the post below.

Hope I get 4.4 -4.5Ghz.

Any other people with this Batch?

Q813A199 4Ghz 1.32 Vcore Jacke231
Q813A499 4Ghz 1.28 Vcore The[R]eaper
Q813A518 4.3Ghz 1.33 Vcore Mask

Pretty good hope you have the same or more luck

[Peter949]

e8400 q813a 4.2ghz 1.37v 8hrs prime.

[little_scrapper]

965 chipsets are great arent thay ... congrats on your oc

everyone has a different view of stable but for me it's 24 hours of gromacs core testing

have had plenty of "stable" (orthos small fft's) clocks before and then go to fold and crash ! folding makes pageing & it's brains work not just volts and heat

If I use ORTHOS BLEND, I get dual 100% loads and about 1.5GB of paging used. If I use dual Prime95's blend I get about 3+GB of paging but I dont get the 100% cpu usage?? whats the deal here?

[LogAn'sRun]

If your current cpu also does 4ghz, no need to step up at the moment... if not, 4ghz is a breeze with these Wolfdale CPU's , if you get a good batch you can do 4ghz sub 1.3volt...and you get a bit more cache... On P45 these crazy cpu's do 500-600FSB without hesitation...

OK thanks! that's good to know and easy to compare. . .

[Xed]

Primes only been going for an hour but my e8500 is so far stable at 3.8ghz with 1.176v

[Leeghoofd]

I opted to lap my Q805A546 as with stock cooling even at stock speed it would idle around 45°C and top at 60°C under full load... I knew this CPU had potential as under watercooling it already did 4ghz at 1.26Volts... then I had a german buyer for it, but he pulled back in the final stages... oh boy is that guy gonna be pissed when he sees with the lapping job I dropped idle temps around 10°C and about 5-7°C under load... I can use less Vcore aswell now...

[HDCHOPPER]

hahahah you shure have 1 of the best ones out thier Leeghoofd

thats great volts ! and good temps
my folding contest (for a q6600) will be over on the 5th then eye can play with mine and get some scerrnies for ya ..just booted 4.0 and took off folding so should be broke by now

[So3oL4Nu]

Hi all...again me ...after hours of testing and bios updates i've found one stable configuration...

With the stable setting the CPU is running on auto.

Stable 17min, i stopped orthos...the question is why at multi 9x with the same settings the pc si not stable...is it because of the Vcore ?...
The Vcore at 4140 mhz is 1.392 IDLE...

[Telo]

Well, after a couple of bangs of the ol' head against the desk , and waiting 3 days for 4 100CFM+ fans [3 are incredibly silent for the amount of air, these are the Scythe SlipStreams 120mm ; the other is the loud as hell Vantec Tornado 92mm ], I figured out a way to lower my temperatures. The Vantec fan replaced the stock fan on my CoolIT Systems FreeZone, the SlipStreams were attached to my ThermoChill 120.3 which was now taken out of the case and 4 feet away from it. Let me put it this way, Real Temp does not move from 28c while running SuperPI 32M [it used to reach 43-45c before] . Orthos, who used to knock my CPU around all the way up to 69c some times , can hardly break 40c now . Now for the most amazing thing of all, since the Vantec is soooo loud, I'm not even running the FreeZone right now!!! I will run it later on, once I find my fan speed controller.

[Nate P.]

I just got my E8400 (batch Q808) and I'm having trouble getting the same results as some of you. Takes 1.39V (1.36V with V-Droop) to get to 3.96Ghz. I can't break 4GHz without at least 1.4V. I guess this is supposed to be an OK batch, what am I doing wrong? Oh, and I'm using OCCT for the stress testing.

[little_scrapper]

I just got my E8400 (batch Q808) and I'm having trouble getting the same results as some of you. Takes 1.39V (1.36V with V-Droop) to get to 3.96Ghz. I can't break 4GHz without at least 1.4V. I guess this is supposed to be an OK batch, what am I doing wrong? Oh, and I'm using OCCT for the stress testing.

I'm in the same boat kinda. My new E8400 is stable (8 hours orthos blend anyways) at 3.8 Ghz and 1.22-1.24V but I bump up to 4.05 GHz (450x9) and I cant get it stable even using pretty much 1.4V. Guess I got a dud.

Ohh well Im not complaining. I just came off of a E4300

[Nate P.]

I'm in the same boat kinda. My new E8400 is stable (8 hours orthos blend anyways) at 3.8 Ghz and 1.22-1.24V but I bump up to 4.05 GHz (450x9) and I cant get it stable even using pretty much 1.4V. Guess I got a dud.

Ohh well Im not complaining. I just came off of a E4300

What batch did you get?