**Official e8400/e8500 Retail OC Thread

[HDCHOPPER]

PolRoger killer chip man ! with some good ram that sucker will do 5.0

[PolRoger]

Thanks guys.

I also did some initial testing with +0.250v vcore which runs ~1.424v idle to ~1.400v load. I'm able to get into windows and do some superpi at 533x9 but it wasn't prime stable. This chip runs hotter than my 1.250 VID 8600 with prime temps hitting in the lower 60C's with higher vcore. I think I'm going to put this chip on my DFI UT P45... it has better BIOS voltage increments which will help in getting 533x9 stable.

[gurusan]

Q828A127

[radaja]

nice one gurusan. i wish i could get mine over 4400.still no luck

[JoeBar]

nice one gurusan. i wish i could get mine over 4400.still no luck

It depends on the chip but on air it's pretty difficult...

[stopdroprofl]

nice guru, btw what kind of speed is your ram at?
pushed mine a bit more tho.
and btw relative to yalls how does my temp look? im on water and maybe im just expecting to much but the temps look alittle on the high side...

[[XC] 4X4N]

A little update. Every kick up in speed now takes a big jump in voltage. 4.4 might be in reach, but I don't know about 4.5.

[Rippo]

Hello all, my first post..here we go

E8400 FPO A807A269.
Memorii: Geil ultra @ 890mhz 5-5-5-15
Gigabyte GA-P35-S3

Normal settings:


E8400 @ 4000Mhz Vcore 1.216 load and 1.232 Idle


E8400 @ 4000Mhz Vcore 1.232 load si 1.248 Idle

Average temps are 75C, they got higher when my Tuniq Tower was not to full power and had ~28C in my room.

Linpack, Vcore 1.248 idle and 1.232 full load


I can boot Vista having 1.20 idle vcore and 1.184 load (but not stable in orthos).

What do you think guys?
Should I be worried about the vcore of 1.248 idle and 1.232 load?

Thanks

[radaja]

@ joebar, my air set up is very cool.using air conditioned air, at 4400 temps never exeed 46-48c.ican prime for hours at 4400 but as soon as try to go to say 4411,prime fails after about 5 minutes-temps still only 47c.thishappens using different multipliers still no luck.but ill keep trying

[gurusan]

nice guru, btw what kind of speed is your ram at?
pushed mine a bit more tho.
and btw relative to yalls how does my temp look? im on water and maybe im just expecting to much but the temps look alittle on the high side...

[IMG]http://farm4.static.flickr.com/3262/3093662066_66b8a6c870_o.png[IMG]

My ram is at 1164mhz right now, 5,5,5,15. 4x1gb OCZ SLI 8500s..they can do 1200mhz on 2.19V actual


And your temps look fine...some chips run hotter than others. You can try reseating the block if you'd like.

[FlyBoyGeo]

I got a Q828A409 last week and have been playing around.

Anyone else running these on a 780i MB? Looking for better voltage settings for NB/SB, FSB, HTT.

[PolRoger]

Hello all, my first post..here we go

E8400 FPO A807A269.
Memorii: Geil ultra @ 890mhz 5-5-5-15
Gigabyte GA-P35-S3

Normal settings:


E8400 @ 4000Mhz Vcore 1.216 load and 1.232 Idle


E8400 @ 4000Mhz Vcore 1.232 load si 1.248 Idle

Average temps are 75C, they got higher when my Tuniq Tower was not to full power and had ~28C in my room.

Linpack, Vcore 1.248 idle and 1.232 full load


I can boot Vista having 1.20 idle vcore and 1.184 load (but not stable in orthos).

What do you think guys?
Should I be worried about the vcore of 1.248 idle and 1.232 load?

Thanks

.9500 is a low VID chip and it looks like it runs hot. Are your load temps 75C with LinPack or with Prime at 445x9 /1.248v idle? Is 445x9 stable at 1.232v idle?

[Rippo]

.9500 is a low VID chip and it looks like it runs hot. Are your load temps 75C with LinPack or with Prime at 445x9 /1.248v idle? Is 445x9 stable at 1.232v idle?

~75C is with Linpack at 445x9/1248v idle
~65C is with Prime at 445x9/1.248v idle, 1.232v load

Having 1.232v idle is stable with Orthos but with Linpack not quite.

Note: It is C0 stepping

[PolRoger]

~75C is with Linpack at 445x9/1248v idle
~65C is with Prime at 445x9/1.248v idle, 1.232v load

Having 1.232v idle is stable with Orthos but with Linpack not quite.

Note: It is C0 stepping

I was missing some of the screen shots when I first viewed you post. I now see that some of your CoreTemps show a 1.1625 VID... I don't think that 1.248v is too much but those temps... that 10 hour orthos run showed peak temps as high as 82C/84C... your chip seems to run pretty hot.
I guess you have tried to reseat/remount your cpu/cooler?

[LennyRhys]

Hi guys, my E8500 just arrived an hour ago. I specifically bought the E0 stepping (who wouldn't lol) and I am very impressed by this thing so far. This is my third boot (once I figured how to enable the .5 multi) and I haven't even begun to tweak the system yet.

Motherboard: EVGA 680i AR
CPU batch: Q820A916
FSB: 1896MHz (474MHz)
Memory: OCZ ReaperX PC-6400 @ 948MHz 5-5-4-18 2T
Vcore in BIOS: 1.425
Vcore in CPU (idle) 1.4v



I don't like this voltage for everyday use but I may be able to tweak it.

Having this CPU in my gaming motherboard when I have a Maximus Formula boxed behind me is a bit irritating lol :P

[gurusan]

1.4v is fine for 24/7 use...heck...1.45v is fine in my book

[stopdroprofl]

nvm i'm an idiot.

[LennyRhys]

I thought people have had 45nm chips die on them at just over 1.4v? I reckon I could get it stable at 1.4v but the FSB is another thing... I'll have to try some stuff first.

What's the program of choice for these chips - Orthos or Prime95? I'm not interested in IBT

[Rippo]

I was missing some of the screen shots when I first viewed you post. I now see that some of your CoreTemps show a 1.1625 VID... I don't think that 1.248v is too much but those temps... that 10 hour orthos run showed peak temps as high as 82C/84C... your chip seems to run pretty hot.
I guess you have tried to reseat/remount your cpu/cooler?

I've ran Orthos again (1.248v idle, 1.232 load) and never got past the 75C.
Guess the 82C/84C was caused by not having my Tuniq Tower in full blast.

If I lower to 1.232v idle and 1.216v load I'll get quite lower temps.

What do you think max 75C in load sounds "safe" (or be in the safe side)?

[Bullet92]

@Rippo
Oh yes you passed 75°C. Your Tj.Max temperature is wrong. It's fixed in beta versions of Real Temp but you can set it manualy to 100°C. So, watch at your temps with 5°C more . Although, Intel's max recommanded temperature is 72.2°C so I think that's too hot for just 1.23V.

[Rippo]

Bullet92, I've previously set the TjMax to 100C for 1st core. Second one it was to 95, so basically I hit 75C.

[LennyRhys]

I tried just to get to desktop at 5GHz and failed, but I'm forgetting this is only an Evga motherboard and 525MHz fsb is kinda pushing things lol.

I did however manage to boot at 4.75GHz:



I'm very happy at the moment with 4GHz on 1.25v but I'd like to aim to aim for a higher clock speed - 4.5GHz is easy for the CPU but I'm not sure how the FSB will hold up...

[Jsunn]

I tried just to get to desktop at 5GHz and failed, but I'm forgetting this is only an Evga motherboard and 525MHz fsb is kinda pushing things lol.

I did however manage to boot at 4.75GHz:



I'm very happy at the moment with 4GHz on 1.25v but I'd like to aim to aim for a higher clock speed - 4.5GHz is easy for the CPU but I'm not sure how the FSB will hold up...

Holy Smokes!! You got 4 GHz with only 1.25v on a 680i!!

I can't seem to get anything stable above 3.5 on mt E8500! Can you PM me you other settings?

-Jason

[PolRoger]

I've ran Orthos again (1.248v idle, 1.232 load) and never got past the 75C.
Guess the 82C/84C was caused by not having my Tuniq Tower in full blast.

If I lower to 1.232v idle and 1.216v load I'll get quite lower temps.

What do you think max 75C in load sounds "safe" (or be in the safe side)?

If you really wish to run at 4.0 you could always try the 1.232v idle setting for 24/7 and see if you ever have stability issuses in your day to day computer activites.

Everyone has a different definition of stability.

I like mine to pass OCCT 2hr mix perhaps even a longer custom run... pass Prime with 3 to 4 hrs... I'll even run IntelBurnTest a few times if my voltages are not too high. However for long term stability testing I like to run Seti/ClimatePrediction.

I have my E8400-C0 set with just enough cpu voltage to be stable at 4.0GHz and not have any crash/resets with seti/climateprediction running up to 24/7. I have it set so that it doesn't proccess while I'm active but otherwise it is always crunching.

I've found that if my systems can do Seti long term then I usually don't have problems with stability.

[jaredpace]

wow 4.2ghz --- 4.9ghz overclocks in the last two pages. Very impressive.