If you bought a retail box cpu... the fpo/batch number will be listed on the box label. It is also printed on the actual cpu heatspreader.
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my fpo/batch #: Q822A559 thats whats on the Box anyone know if these are any good?
now that's a question that is hard to find out unless someone with the same
batch# is having pretty good luck with theres ok sense we got the batch#
post that in your sig along with the (Pack Date) and the (Spec ID) so we
can see when it was packed up in the box:clap:
Here are the results from an E8400 Q829A147 I picked up from Microcenter today.
Well, here's my new 24/7 OC. It's not the greatest chip, not the worst. Coming from an E4400 it's sure made me happy!
FPO/Batch #: Q829A078
Pack Date: 9/8/08
500 x 8.5 = 4.25GHz @ 1.344v
http://www.myalbumbank.com/albums/us...0/boxlabel.jpg
http://www.myalbumbank.com/albums/us...dingat4-25.jpg
With my e8400 in ORTHOS at 467x9.0 1.296v (cpu-z) i getting error on core2 after ~30sec Small FTTs testing. Which option in BIOS should i tweak to get better stability?
still havent got mine running right, for some reason it looks like i am the only person that owns a e8500 from batch Q750A071, i dont see any Q750 in the 8500 list at all and am running 440x9.5 atm @ 1.35v but it isnt stable at all, i dont really think i have passed orthos on anything other then stock with this guy! Been tempted to give it up and throw him in ebay and get myself a E8600 and try from there, was really happy to get this CPU after reading all the tests on it but mine doesnt clock at all!
Anyone got a suggestion?
Hello guys,
I have bought a E8400 from the batch q832A88, do you have any infos about this batch in particular?
K thanks bye.
Anyone help me out with some overclocking? I have the E8400 FPO/Batch# Q833A110. Im running an Asus P5Q board, Ive been testing stability with Intel's Burn Test and get it to pass level 2 stress @ 10 passes with any settings but fails level 1 immediately. At idle Im sitting 31 / 29 and under stress test 2 I maxed out at 61 / 61.
System:
E8400
Asus P5Q Pro
Corsair 650TX
G. Skill DDR2-1066 4GB
EVGA 9500gt
Ultra Chilltec CPU Cooler
Settings:
FSB 450
Multiplier 9.0
DRAM DDR2 Frequency - 1081
SB 1.20
NB 1.40
CPU GTLREF 0.63x
PLL 2.0
1.33v but shows up as 1.312 in cpu-z
AI Clock Twister on light
some voltages are too high :
Vnb : 1.24 max
GTlLref: 0.61
PLL : don't go higher than 1.7 for benchs /1.5 for 24/7
try again with those voltages, il could be better!
Yeah I went through and dropped a everything down lower and to auto. Anyone here pass intels burntest? I've read that others have ran their over clocks for 10+ months stable but run test 1 on IBT and fail immediately like I do.
I need help with OCing my E8400 to 4.0 GHZ. I recently just got
Asus P5QL PRO
E8400
Antec 900
GameXstream 600 watt
I have the E0 stepping, and I heard they can OC like mad, like 4.5 on air. I hit 3.6 GHZ by just changing the FSB, then when I hit 3.8 it wouldn't boot, so I only changed the FSB voltage to 1.3v and the NB to 1.2 and it works. I have no errors on prime 95 at all, not even once. This is where I hit a road block. As soon as I go past 430 FSB, there's a 50% chance it won't boot (post) and will reset. When it does boot, prime 95 runs perfectly stable, and so does the rest of my PC. I just don't get it. It's perfectly stable, but my motherboard is lazy to post at that speed. Temps are 41C after 2 hours of prime 95 on Freezer 7 pro. I thought it was my old Corsair DRR2667 ram thats running at 845 mhz, but prime 95 Ram test still has no errors after 2 hours. I tried changing ram timings, nothing. Tried changing CPU voltage, ram voltage, nothing. FSB and NB seemed to get me to 3.8, but I can't get past it. I'm thinking it's just the board, but I also haven't tried SB voltages or CPU stew settings, and a bunch of others, but they don't really seem relevant.
If anyone can help me, I would really appreciate it.
tried nother run and got this..
http://img246.imageshack.us/img246/5461/43721744ij6.jpg
And these were the settings...
Ai Overclock Tuner ................. [Manual]
CPU Ratio Setting .................. [8]
FSB Frequency ...................... [530]
PCIE Frequency ..................... [100]
FSB Strap to North Bridge .......... [400]
DRAM Frequency ..................... [1060]
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
1st
CAS# Latency : 5
RAS# to CAS# Delay : 5
RAS# Precharge : 5
RAS# ActivateTime : 15
RAS# to RAS# Delay : Auto
Row Refresh Cycle Time : Auto
Write Recovery Time : Auto
Read to Precharge Time : Auto
2nd
Read to Write Delay (S/D) : Auto
Write to Read Delay (S) : Auto
Write to Read Delay (D) : Auto
Read to Read Delay (S) : Auto
Read to Read Delay (D) : Auto
Write to Write Delay (S) : Auto
Write to Write Delay (D) : Auto
3rd
Write to Pre Delay : Auto
Reado to Pre Delay : Auto
Pre to Pre Delay : Auto
All Pre to Act Delay : Auto
All Pre to Ref Delay : Auto
DRAM Static Read Control ........... [Disabled]
DRAM Read Training ................. [Disabled]
MEM. OC Charger .................... [Auto]
Ai Clock Twister ................... [Auto]
Ai Transaction Booster ............. [Auto]
____________________________________
CPU Voltage ........................ [1.35]
CPU GTL ............................. [Auto]
CPU PLL Voltage .................... [1.52]
FSB Termination Voltage............. [1.34]
DRAM Voltage ....................... [2.0]
NB Voltage ......................... [1.26]
NB GTL Reference ................... [1.26]
SB Voltage ......................... [1.20]
PCIE SATA Voltage .................. [1.50]
____________________________________
Load-Line Calibration .............. [Enable]
CPU Spread Spectrum ................ [Disabled]
PCIE Spread Spectrum ............... [Disabled]
CPU Clock Skew ..................... [Auto]
NB Clock Skew ...................... [Auto]
NB probably needs more juice for that high of an fsb.
If you increase multi back to 9 and drop fsb for same ghz you might get it (if you don't bump up NB).
it wont go on multi 9 i really dont know why...
I put my infor in on what..I'm running Ic your ram is not running at 2.1v and your SB volts are under as well in your bio's turn your DRAM Frequency down
alittle 913 if you you got that but one under your 1060 and your volts up and just stress the cpu only and run a ibt test and see what happens:up: another thing what Bio's did you have? are they the 1406 bios?
A little more playin around this morning. This is not prime stable but enough to pass 32m and surf :)
http://i544.photobucket.com/albums/h...95x490_32m.jpg
nice. looks like similar results to my chip, what is your stepping?
I got my new E8400 E0 this afternoon, and so far I'm pretty amazed. I thought this cpu was a dud at first, as it would not boot above 4.0 GHz at any voltage. Then I turned down the VTT to 1.1v and now it o/c like crazy! Here is as far as I got with the ram @ 585 Mhz with 2.1v. I tried 4460 MHz with the same settings, but Orthos crashed...still much tuning to do!
This thing really likes Vcore over 4.6'ish:
http://www.myalbumbank.com/albums/us...0/4811CPUz.jpg
Validation.
http://www.myalbumbank.com/albums/us..._4-811sp1m.jpg
Not a great E8400, but at least it's not a C0! :)