**Official e8400/e8500 Retail OC Thread

[Quad-Damage]

Ai Overclock Tuner ................. [Manual]
CPU Ratio Setting .................. [9.5]
FSB Frequency ...................... [439]
PCIE Frequency ..................... [100]
FSB Strap to North Bridge .......... [Auto]
DRAM Frequency ..................... [PC2-1055] (I have 4 gigs of PC8500) G skills
DRAM Clock Skew on Channel A1 ...... [Auto]
DRAM Clock Skew on Channel A2 ...... [Auto]
DRAM Clock Skew on Channel B1 ...... [Auto]
DRAM Clock Skew on Channel B2 ...... [Auto]
DRAM Timing Control ................ [Manual] (5-5-5-15)
DRAM Static Read Control ........... [Disabled]
DRAM Read Training ................. [Disabled]
MEM. OC Charger .................... [Enabled]
Ai Clock Twister ................... [Moderate]
Ai Transaction Booster ............. [11] or Auto
____________________________________

CPU Voltage ........................ [1.3810]
CPU GTL Voltage Reference (0/2) .... [Auto]
CPU GTL Voltage Reference (1/3) .... [Auto]
CPU PLL Voltage .................... [1.58]
DRAM Voltage ....................... [2.1]
vFSB.....................................[1.22]
NB Voltage ......................... [1.26]
NB GTL Reference ................... [Auto]
SB Voltage ......................... [Auto]
PCIE Voltage ....................... [Auto]
____________________________________

Load-Line Calibration .............. [Disabled]
CPU Spread Spectrum ................ [Disabled]
PCIE Spread Spectrum ............... [Disabled]
CPU Clock Skew ..................... [Auto]
NB Clock Skew ...................... [Auto]
CPU Margin Enhancement ............. [Perfomance Mode]

It's unstable after 20 mins into prime

[ssabripo]

Ai Overclock Tuner ................. [Manual]
CPU Ratio Setting .................. [9.5]
FSB Frequency ...................... [439]
PCIE Frequency ..................... [100]
FSB Strap to North Bridge .......... [Auto]
DRAM Frequency ..................... [PC2-1055] (I have 4 gigs of PC8500) G skills
DRAM Clock Skew on Channel A1 ...... [Auto]
DRAM Clock Skew on Channel A2 ...... [Auto]
DRAM Clock Skew on Channel B1 ...... [Auto]
DRAM Clock Skew on Channel B2 ...... [Auto]
DRAM Timing Control ................ [Manual] (5-5-5-15)
DRAM Static Read Control ........... [Disabled]
DRAM Read Training ................. [Disabled]
MEM. OC Charger .................... [Enabled]
Ai Clock Twister ................... [Moderate]
Ai Transaction Booster ............. [11] or Auto
____________________________________

CPU Voltage ........................ [1.3810]
CPU GTL Voltage Reference (0/2) .... [Auto]
CPU GTL Voltage Reference (1/3) .... [Auto]
CPU PLL Voltage .................... [1.58]
DRAM Voltage ....................... [2.1]
vFSB.....................................[1.22]
NB Voltage ......................... [1.26]
NB GTL Reference ................... [Auto]
SB Voltage ......................... [Auto]
PCIE Voltage ....................... [Auto]
____________________________________

Load-Line Calibration .............. [Disabled]
CPU Spread Spectrum ................ [Disabled]
PCIE Spread Spectrum ............... [Disabled]
CPU Clock Skew ..................... [Auto]
NB Clock Skew ...................... [Auto]
CPU Margin Enhancement ............. [Perfomance Mode]

It's unstable after 20 mins into prime

change vFSB to AUTO, and NB Voltage to [1.32]

[misho]

OK so I ordered E8500 from newegg, and got the cpu from new jersey warehouse where everyone got E0s..

my package comes today - E8500 C0, q818A102, PACK DATE JULY 27, 2008

I am SAD... and I have been waiting to get this CPU over a month and now get this sh.ittty thing.. So do you think this batch will overclock good guys?? or is it total bulls**t?

[Ozzfest05]

relax my C0 did 4.753 ghz on air

[misho]

relax my C0 did 4.753 ghz on air

On what volts? I am aiming for 4.3-4.5 on under 1.4V

[DOM.]

E8500 Q822A537 Pack Date 8/7/07 to play with friday

[LagunaX]

OK so I ordered E8500 from newegg, and got the cpu from new jersey warehouse where everyone got E0s..

my package comes today - E8500 C0, q818A102, PACK DATE JULY 27, 2008

I am SAD... and I have been waiting to get this CPU over a month and now get this sh.ittty thing.. So do you think this batch will overclock good guys?? or is it total bulls**t?

Think you might get 4.2ghz on 1.35v or less.

[misho]

K guys question:: SHOULD I get 2 x Scythe ULTRA KAZE 2000RPM fans or
2 x Scythe ULTRA KAZE 3000RPM fans for my thermalright ultra 120 extreme? Are 3000RPM too loud?

[jaredpace]

3000rpm

[misho]

3000rpm

But isn't it tooo loud? I am thinking of doing 2 x 2000rpms.

[Ozzfest05]

the 3000's push 50dba at full blast I have them they weigh a ton because they are 120 120 36 not 120 120 25 I wouldnt reccomend them they are sweet fans but for the airflow noise ratio not so good my tower nearly left the ground however my ears bled slightly.

[misho]

KK Im going to buy 2 x 2000rpms for now, if anything I will return/exchange.

Thanks

[JCGhz]

KK Im going to buy 2 x 2000rpms for now, if anything I will return/exchange.

Thanks

I have the kaze 1900rpm's... They move alot of air (110cfm) and they are not as loud as my case fans and they work great in push pull with my TRUE.

[Quad-Damage]

I have 3x Scythe S-FLEX SFF21E 120mm Case Fan - Retail on my Swifttech rad and it's a bit loud outside of the computer, it's not as loud as my hard drive, but it's not silent. you can hear the air moving that's about it.

[HDCHOPPER]

My contribution...
E8400 C0...

4.67ghz...
And no sub10 superpi
Need more tweaks :P

it took mine 4.7 to get sub 10's with a clean small HD

[JCGhz]

Not bad for a Maximus Formula and a Cheap E8400. Air Cooled By TRUE

LLC disabled

[LagunaX]

Very nice - that's like one of my e8500's - a keeper!

[bigwill68]

@JCGhz

Great holding it stable Very close to that 1.3625V what your temps at idle?

[JCGhz]

@JCGhz

Great holding it stable Very close to that 1.3625V what your temps at idle?

its was 3d stable at lower vcore... but i wanted it prime stable so staying under that 1.3625 very nice.My Idle temps are below 36c but im not quite sure since the sensors are stuck there

This is one sweet little 8400 it suprised the heck outta me.
My E8600 took almost 1.5vcore to hit 4.5 which i wasnt happy with.

[misho]

Alright guys. SO i assembled PC:

E8500 C0 q818A102, 06,27,08
Biostar tpower i45
OCZ Reaper HPC 8500

So Now I am running at 3800mhz (400 x 9.5,) with 1.216V (under full load), and 1.225V original vcore.

but orthos fails at 21min 24 seconds at the BLEND - stress cpu and ram

what are the safe volts I can increase my cpu and memory to?

[HD4870x]

Just got a C0 from newegg NJ. So heads up there. But it seems like it's all chance. I sprinkle my CPU, so I'm getting 4.0ghz at 1.3...... Ehh kind of what I expected when the C0 showed. But still nothing to scoff at. Runs cool, bout 45C under load. J'aime. 11 second Super Pi surprised me to say the least though.

[gaban]

hi, this is mine.

E8400 CO
PCP 750watt
Asus P5Q deluxe
OCZ flex 1200

[bigwill68]

its was 3d stable at lower vcore... but i wanted it prime stable so staying under that 1.3625 very nice.My Idle temps are below 36c but im not quite sure since the sensors are stuck there

This is one sweet little 8400 it suprised the heck outta me.
My E8600 took almost 1.5vcore to hit 4.5 which i wasnt happy with.

Glad to see your temps are staying low..Hey jot that batch number down on here and the Package Date...lol ..I would like to know what numbers you have my friend

[misho]

Hey guys !!!
I have a problem
my E8500 C0 is oced to 4Ghz, at 1.302v and 1.290V after vdroop on full load.
Orthos fails memory test, cpu test, and both cpu and ram test.

I cant even reach 4Ghz on 1.3V which is pretty bad..
What should I do? increase memory volts? FSB volts? more CPU volts or maybe chipset volts?

edit: my mobo is tpower i45 and memory is OCZ 2gb reaper HPC DDR2-8500 running at 2.1V stock

edit 2 Orthos is running for over 15mins now.. Its weird, first run always fails, but 2nd time its all good.
Yesterday I did 3.8Gh with some voltage, and orthos failed. So then I tried the test again without changing anything and orthos was running for over 8 hours(I had to stop it)...

[Quad-Damage]

I have to run 1.38 volts to hit 4.1ghz on my E8500 C0