**Official e8400/e8500 Retail OC Thread

[ThatGuy16]

Yeah, i have just been going by the cpu temp instead. I hope we'll eventually get an answer about these temp problems.

That might be it, i just installed the 8.4 cats, I'll see if i have the problem again.

I should be getting new ram pretty soon, this stuff i have now is holding back my OC. With new ram, can't wait to see what i can bench

OK, it does this randomly, like loading up a game (you know, the screen goes black or "flickers" before it loads a game or 3d app). It done it again when i started CSS, i turn my monitor off and back on to see what that would do. And amazingly, that fixed it. Whats causing this? it just started this a few days ago

[Big Lar]

Yeah, i have just been going by the cpu temp instead. I hope we'll eventually get an answer about these temp problems.



OK, it does this randomly, like loading up a game (you know, the screen goes black or "flickers" before it loads a game or 3d app). It done it again when i started CSS, i turn my monitor off and back on to see what that would do. And amazingly, that fixed it. Whats causing this? it just started this a few days ago

I would test the PSU rails first, then check for your Monitor .inf for an update,(tho I doubt thats it). Again, could be a bad cell on the Vid memory.
May want to do a complete Uninstall of the card, and remove all the old ATI references with Drive Cleaner in Safe mode if you hadn't allready.

I had a similar thing happen with a PowerColor 3870, and eventually figured out it was bad memory on the card and RMA'd it.

Larry

edit; You may want to check your Cables for a good connection on both ends, as well as Re-seating the vid card.

[CrazyNutz]

Rock solid

[jaredpace]

If you still can get one, do it now! Best week for E8400. All cpus i saw until right now will do a min. of 4200MHz stable with less then 1.4V!

I recieved a Q807A269 today. Just a first boot/quick test, error after about 12 minutes, but this one has potential!

damn 4.5G @ 1.37v!

i had 4.5g prime @ 1.42v! Yours is even better!

[kadir_slayer]

why are my temps so high at that low voltage???



[img=http://img512.imageshack.us/img512/9127/ssssssjp5.th.jpg]

[jaredpace]

why are my temps so high at that low voltage???

Bad Heatsink contact, high ambient temps, poor case airflow, poor cable management, uneven IHS, poor ihs/hsf base connection, too much TIM, unlapped/uneven surfaces, faulty HSF installation, 9700LED fan speed too low, etc etc

[kadir_slayer]

Bad Heatsink contact, high ambient temps, poor case airflow, poor cable management, uneven IHS, poor ihs/hsf base connection, too much TIM, unlapped/uneven surfaces, faulty HSF installation, 9700LED fan speed too low, etc etc

Remounted it twice, have a silverstone fm121 case fan, good cable management, full fan, same setup with a different e8400 and same temps at 1.432 load, same person

[mrcape]

lol @ same person

[jaredpace]

Remounted it twice, have a silverstone fm121 case fan, good cable management, full fan, same setup with a different e8400 and same temps at 1.432 load, same person

Concave/convex IHS, or try swapping your cpus into one another's identical setup and reassessing your temperatures.

Identical rig 1, E8400 #1, 1.27Vcore, 77C load

Identical rig 2, E8400 #2, 1.43Vcore, 77C load

to

Rig1, Cpu 2

Rig2, Cpu 1

See if you get 77C on both processors at load.

[kadir_slayer]

Concave/convex IHS, or try swapping your cpus into one another's identical setup and reassessing your temperatures.

why me???

[ban916]

hi,

ı have a e8400 q746a514 and it used to work at 4.05 at 1.432 voltage(load) 12 hours stable then a few days ago I run orthos again it gave an error half an hour later. I pissed off because ı had spent so many hours to make it stable for 12 hours orthos. there is already 10 c difference between cores at idle so I bought another e8400 . today I received but haven't tried it yet. it is a q802a570.. is there anyone knows anything about this batch??? and what is the highest vcore you recommend to avoid degredation?

I've had my chip up to 1.55v on air multi times for 3dmark runs and it still goes right back to 1.288v @ 4Ghz stable all on air. Degrading I think not.

[Hughyhunter]

why me???

You are the chosen one!

It could be a bad sensor.

[EXPANDER]

Tests Systems

E8400 Retail 1.64 Vcore
DFI P35 UT T2R
1000 WATT Silverstone Op Psu
2X 512 MB DDR2 800 MHZ RAM
SINGLE STAGE -57C IDLE BLOCK

E8400 1.64 Vcore 5244 MHZ FSB: 582

Validate: http://valid.x86-secret.com/show_oc.php?id=346970



SP1M No Tweak

[kadir_slayer]

Concave/convex IHS, or try swapping your cpus into one another's identical setup and reassessing your temperatures.

Identical rig 1, E8400 #1, 1.27Vcore, 77C load

Identical rig 2, E8400 #2, 1.43Vcore, 77C load

to

Rig1, Cpu 2

Rig2, Cpu 1

See if you get 77C on both processors at load.

I think you misunderstood.. both of them are the same rig... ı just swapped the cpus because the previous one was a bad overclocker.. this second cpu is better at overclocking but the temps are so high.... ı couldn't decide to trust these temps and stop here or go on overclocking.. especially the second core is messed up. it idles at 59 never goes below... but at load two core temps are nearly the same... another strange thing is that cpu temp is higher than the lowest core temp... I 'm messed up....

[Simsons2]

Still testing mine. Got 05 mark benchable @ 4500 mhz 1.432v real
vPLL just 1.66

[MrBeer]

Got A E8400 B# Q808A224

I got the chip to 450x8= 3.6 at 1.248 stable

it seam that is batch needs higher Votage to run at high speeds

At 443x9 = 4 ghz i need 1.416 to be stable

A little high i think


I am runing p5b-D

[Hughyhunter]

Got A E8400 B# Q808A224

I got the chip to 450x8= 3.6 at 1.248 stable

it seam that is batch needs higher Votage to run at high speeds

At 443x9 = 4 ghz i need 1.416 to be stable

A little high i think


I am runing p5b-D

IMO I dont think this is high. The average overclocked E8400 (from what I've seen) is needing this much voltage. I think it's a more rare occasion for someone to only need 1.25v for 4ghz overclock. I needed 1.38 for 4.05ghz. That's good IMO

[MrBeer]

cool
going down on votage to see how low i can get this thing to go
don't know how long these chips will last at 1.3-1.4 vottage
will post benchmark later

[ThatGuy16]

I would test the PSU rails first, then check for your Monitor .inf for an update,(tho I doubt thats it). Again, could be a bad cell on the Vid memory.
May want to do a complete Uninstall of the card, and remove all the old ATI references with Drive Cleaner in Safe mode if you hadn't allready.

I had a similar thing happen with a PowerColor 3870, and eventually figured out it was bad memory on the card and RMA'd it.

Larry

edit; You may want to check your Cables for a good connection on both ends, as well as Re-seating the vid card.

I know it can't be the power supply. Because, if i turn the monitor off and back on, its fine. I think i might need to search for my monitor's driver. I used to be able to get it off of LG's site, but after i reinstalled vista, i can't find it anywere.

Do you think that could be the cause?

I'm saving up for new ram by the way, maybe some Trancsend axeram with D9's. For the price, they seem great. This ram i have it holding me back!

[fireice2]

mrcape got one of those great E8400's. Pretty low voltages plus it scales well with voltage.

My chip quite has a low voltage requirement for 4.05ghz but scales like crap with voltage with the x9 multiplier. Im not so sure why it can run OCCT stable with an x8.5 multi at 4.2ghz with 1.36v. But if I run it at 4.2ghz with x9 multi with the same voltage I get the "quack" from OCCT.

[MrBeer]

update just fried Power supply and also just lost the board with it P5b-D
toorow going to get Asus P5E w/ DualDDR2 1066 and tryed that

lol

[flashnc]

any info on the Q801A290 batches?? thats whats showing at *tankguys* right now...i ordered one.and will post results when i get it.... thanx

[aoch88]

I have a dumb question - I got my E8200 @ 4.05Ghz and SmallFFT can run for hours but Blend would fail everytime during the 30-40 mins range. I've increased Vdimm, Vnb, etc but with no luck. What could be wrong?

[Tekdemon]

Man, I feel like I got a bum chip maybe. My E3110 needs like 1.39V under load so that prime doesn't just crash in 3 minutes.

That said, it might be because I'm using outdated cooling-the zalman 9500 can barely keep the temps under control at this voltage...under load I'm seeing 84 degrees in Core temp...gahh!!!

Trying some of the settings other people had on here has it down to 1.39v at least...it was up even higher before I swapped the CPU GTL multiplier to auto (apparently manually setting it isn't as effective even at the highest setting on the P5K vanilla).

Anybody have any good settings for the P5K Vanilla? I might have to go invest in better cooling because it's just going to get worse when summer comes =(

[giorgos th.]

also tried a 03,05,06 run with 1.5Vcore..still with air..