**Official e8400/e8500 Retail OC Thread

[badboy]

I can boot into windows at 4.1ghz at 1.304v. This motherboard isn't reading my temps correctly at all. I am using the Asus P5E3 Deluxe. I reseated it 3 times and reads odd temps on both cores. I am using a Coolit Freezone cooler and heatsink is cold. My idle temps are averaging around 34C to 39C. My batch is Q746A519 and a pack date of 01/16/08 and a VID of 1.1000.

http://valid.x86-secret.com/show_oc.php?id=302461

[Bail_w]

I just got mine E8400 Q743A748, will post some results later.

[Praz]

Got it, and thanks for the insight. Whatever the reason I'm glad it works! Did you get your chips yet?

Yeah. 746A381 . Just got to find time to stick it in a board. Maybe tonight.

[GLENBOY]

get it in

[AriciU]

Mine seems kinda hot as well, in core temp 96.1 but moreso at idle end at around 42c. In the bios it reads really cool. I can't imagine it's this hot at idle with low volts like 1.29vcore. Then at blend load it never gets over 59c even up in the 4-4.3ghz range.

It's a bug. Mine always idles at 40C. Doesn't matter if it's at stock freq on stock voltage or at 4830 and 1.65v. Hopefully the coretemp guy will sort it out.

[NapalmV5]

stable @ 1.275v



is this good?

[yenclas]

What is the best with this processor:

500*8 = 4000Mhz 1:1 mem=1000Mhz

or

450*9 = 4000Mhz 1:1 mem=900Mhz

?

Anyone help me ?

My temps at idle are 42ºC and full orthos 56-57ºC with TR Ultra 120

[karateo]

max fsb is better

[Ad1tya]

Any1 bought an E8400 from Newegg?

What batch did you get, and results?

[Xvys]

It seems many E8400's have core temp sensors which report incorrect low temperature readings. These false readings are being reported in all software monitoring programs.

I had a E8400 which reported idle temps of 17C in one core and 34C in the other. Under load, the 34C core readings were frozen until it exceeded 34C.
I exchanged that processor a new one, albeit from the exact same batch, but the new cpu more correctly has core temps of 38C/36C (4.0Ghz with 1.34v).

Programs like CoreTemp read the diode right in the cpu, so software updates or bios upgrades will have no effect on these false readings.

Some E8400 purchasers are being told to just ignore these false core readings and instead rely on the "cpu temp" reading, rather than core temps.

[Forsaken1]

stable @ 1.275v



is this good?

Mine will run games at that,but not prime.What is your idea of stable?

[yenclas]

It seems many E8400's have core temp sensors which report incorrect low temperature readings. These false readings are being reported in all software monitoring programs.

I had a E8400 which reported idle temps of 17C in one core and 34C in the other. Under load, the 34C core readings were frozen until it exceeded 34C.
I exchanged that processor a new one, albeit from the exact same batch, but the new cpu more correctly has core temps of 38C/36C (4.0Ghz with 1.34v).

Programs like CoreTemp read the diode right in the cpu, so software updates or bios upgrades will have no effect on these false readings.

Some E8400 purchasers are being told to just ignore these false core readings and instead rely on the "cpu temp" reading, rather than core temps.

My cpu temp at idle is 15ºC and two core temps 40-42ºC

With orthos core temps are 56-57ºC

This is on 500x8 = 4000Mhz and 1,344 vcore

[Mav451]

get it in

Haha you mean stick it in.

I'm wondering - how hard is it to move your mobo, from one case to another, if I'm using a TR.120E? I can probably install tomorrow if I keep my old case, but if I order a new case, I'd have to wait - unless i'm willing to temp it in my old case.

[Xvys]

Those temps seem similar to mine, yenclas. At 4.0GHz (445 x 9) my core temps read 38/36C, with the cpu at 28C. Under Orthos the core temps are 52/56C with the cpu temp at 46C.

I have the Extreme heatsink which may account for 2C extra cooling compared to yours. You also have to take into account your room temperature. In Canada my ambient temp is 22C, while in Spain your ambient temp might be 25C...so you are starting 3C higher and cpu temps will always be 3C higher.

[mrcape]

My cpu temp at idle is 15ºC and two core temps 40-42ºC

With orthos core temps are 56-57ºC

This is on 500x8 = 4000Mhz and 1,344 vcore

I've got the same symptom - Core temp 42c on both cores at idle on - 500x8 4000Mhz and 1,3vcore. This is the same system that would be reporting about 20c per core at idle with the same volts on an e6600. I re-seated, and have two fat San Ace fans running through it with ambient temps around 12c (window open in MA).

Xvys' explanation helps. I'm wondering if I can trust the load temps and ignore the idle. Didn't somebody say they raised the max temp warning on these to 70c?

[yenclas]

Those temps seem similar to mine, yenclas. At 4.0GHz (445 x 9) my core temps read 38/36C, with the cpu at 28C. Under Orthos the core temps are 52/56C with the cpu temp at 46C.

I have the Extreme heatsink which may account for 2C extra cooling compared to yours. You also have to take into account your room temperature. In Canada my ambient temp is 22C, while in Spain your ambient temp might be 25C...so you are starting 3C higher and cpu temps will always be 3C higher.

Thanks Xvys.

Seems to be normal temps. I was thinking that temps of 8400 were minor.

[Motley]

get it in

LMAO...

[karateo]

Yeah. 746A381 . Just got to find time to stick it in a board. Maybe tonight.

go go go Praz!!!
I am looking forward to your results and settings

[turtletrax]

I just got mine E8400 Q743A748, will post some results later.

Mine is the exact same FPO/Batch#, Having problems on my DFI P35-T2R getting stable (4.5Ghz). Drop me a PM with your results as it would be fantastic to know how yours is doing

[badboy]

Any1 bought an E8400 from Newegg?

What batch did you get, and results?

I got mine there and look at my results above.

[GLENBOY]

LMAO...

you don't want to be waiting tioll tomorrow with a new cpu on the table get it stuck in and give it some stick

[giorgos th.]

low 24/7 config with 24C room temp and rad fans at 1100rpm..
Q740A476T..

[GLENBOY]

you always get the most out of your hardware giorgos , what the max cpu clock you've had what was 3d stable, i have an e8400 on the way and an e8500 on pre order no 8500s in the uk

[giorgos th.]

i want to slowly stress this 8500....seems better than my previous 740A493...
i have it 4 days and max Vcore is what you see...1.32V..so far
4005mhz @ 1.232Vcore (previous 1.28V)
4100mhz @ 1.280Vcore (previous 1.33V)
4230mhz @ 1.320Vcore (previous 1.4V)
the V - clock scaling looks good to me..

[luladude]

Hi there,

Just assemble 3 times in a row my 8400 on a P5E with TU120 extreme: same core T readings idle @ 38ºC. CPU T (in CPUID) @ 24ºC. all at 1.2v

I do think, as mentioned, that those core T are false.
My e6320 in the same system, idle core T were @ 20sss (1.4v)