**Official e8400/e8500 Retail OC Thread

[TEDY]

guys use preview not full pics....has anyone have abit ip35-e and e8400...mobo undervolts like crazy....

bios 1.305v idle 1,152v load 1,16v cpu-z
bios 1.385v idle 1,264v load 1,232-1,240v cpu-z

grr, iritatting.....

[Furiøùs]

Wow thats really bad o.o

[Damien]

guys use preview not full pics....has anyone have abit ip35-e and e8400...mobo undervolts like crazy....

bios 1.305v idle 1,152v load 1,16v cpu-z
bios 1.385v idle 1,264v load 1,232-1,240v cpu-z

grr, iritatting.....

yeah i've heard of the abit p35 series really not keeping up with these chips.

[TEDY]

which vcore is more reliable?

[Mykou]

guys if the screen freezes at boot up (but no BSOD), is that a proc problem or RAM? thanks

I bet for ram

[emoners]

@Mykou: thanks! hmmm if ram is the case, then probably the vcore would need lesser volts if i pump up the vdimm or loosen the timings

[Motley]

Just received my 780i upgrade from EVGA ($89=ftw)

Here are my results:

[HaTaX]

guys use preview not full pics....has anyone have abit ip35-e and e8400...mobo undervolts like crazy....

bios 1.305v idle 1,152v load 1,16v cpu-z
bios 1.385v idle 1,264v load 1,232-1,240v cpu-z

grr, iritatting.....

That's a result of using a bios version that doesn't fully support the E8X00 series yet. So far the only one that we've got that works correctly is 16B09, that should make your selected voltages match up much better and get your temps inline if they're being reported funny by the bios / hardware monitor

[Vixx]

Q745A567
This is what I run mine at 24/7.

[Mav451]

Damn nice chip. I have a feeling you could probably do 4.2 and still be just under or over 1.3vcore (Windows).

[HDCHOPPER]

Wow ! Nice Chip Vixx

[ThatGuy16]

Vixx, we have the exact same batch. They're great!

[icecpu]

I think my 8400 just degraded, I did prime95 stable for 9hrs 2 weeks ago at 4.15GHz , V1.38

Now I need V1.39 to be stable , or maybe more

WTH with 8400 ??

[CERO]

if u have another board try on that one and see what happends, as my maximus began to act funny after right after I popped in a wolfdale, but the board is sold now. U sure your ram is stable in the first place?

[cadaveca]

I think my 8400 just degraded, I did prime95 stable for 9hrs 2 weeks ago at 4.15GHz , V1.38

Now I need V1.39 to be stable , or maybe more

WTH with 8400 ??

Please try to run prime again.


You cannot call one failure not stable. You must try at least a few times..likewise the inverse is true, did you run prime for 9hrs just once? It's more than possible that it was a "false positive" for stability. Prime is not the end-all, be-all.

[Blackwhite]

guys use preview not full pics....has anyone have abit ip35-e and e8400...mobo undervolts like crazy....

bios 1.305v idle 1,152v load 1,16v cpu-z
bios 1.385v idle 1,264v load 1,232-1,240v cpu-z

grr, iritatting.....

I had the same on my Abit IP35 - I think BIOS it is not ok yet, nad you have to wait for the new one

[victorator]

boo! where's the official e8200 overclocking thread : (

Currently running stable @ fsb 475 vcore 1.304 real, what do you think?

[TEDY]

That's a result of using a bios version that doesn't fully support the E8X00 series yet. So far the only one that we've got that works correctly is 16B09, that should make your selected voltages match up much better and get your temps inline if they're being reported funny by the bios / hardware monitor

i'm using 14 so best way is to update to beta 16,right ?

[ArCElM]

i'm using 14 so best way is to update to beta 16,right ?

Unfortunately the IP35-E is not getting much attention, there is no 16 for the E version of this series.

[Ron 61]

Unfortunately the IP35-E is not getting much attention, there is no 16 for the E version of this series.

There is a beta: IP35-E - V1.6 Beta 01 E8400/E8500 Support Improved at http://forum.abit-usa.com/showthread.php?t=122393

[TEDY]

yes it is

IP35-E - V1.6 Beta 01 E8400/E8500 Support Improved
http://www.lvcoyote.com/M630A_16.B01.zip

well i should upgrade bios hehe....

[zlojack]

I find that for this CPU, I only need 1.31v for 4.0 (8x500) but to try for anything higher requires big voltage increases.

[mrcape]

I know everyone's sick of hearing the d word, but the Q745A I have definitely needs more juice than it used to. It still does 8.5x500 (4.25ghz) 2 hours Prime stable, but it needs exactly .05v more vcore than it did before I took it over 1.4v.

This is the second e8400 of mine that seems to have degraded, so to prove this to myself at least, I started tracking this one right out of the box. I got it prime stable (around 1 - 2hrs) at about ten different clocks, using as little voltage as possible. I settled for 8.5x500 with 1.275vcore, which was priority 9 Orthos blend stable for 2+hrs.

I kept this log of settings around and after about a week of real world use testing, I decided to run some benchmarks. I did maybe 30 - 40 superPi and 3dmark runs, bringing the voltage up to a max of 1.42vcore. I never ran prime or any other torture test over 1.3125vcore.

After benching I wanted to see if the chip had taken a hit, so I went back to my log and to my saved profiles in cmos reloaded and ran prime again at the settings that had been stable. They all instantly failed. They began to pass as I notched up the vcore for each clock. It took a total of exactly .05v more at each clock to pass 2 hours than it had before benchmarking. It needed the same .05v at each clock.

So just to be clear this is not proof to anyone else, just what I've found using my simple note taking method.

The chip still does 8.5x500 prime stable with only 1.325vcore, so it's all good.

Another note - temp readings are fine and they scale up and down in sync before and after the possible degradation.

[icecpu]

Please try to run prime again.


You cannot call one failure not stable. You must try at least a few times..likewise the inverse is true, did you run prime for 9hrs just once? It's more than possible that it was a "false positive" for stability. Prime is not the end-all, be-all.

I ran OCCT and prime crashed within 2 minutes , so I just pumped v1.406 in bios (v1.39 in cpuz and everest) now it's stable, I will run it again in 2 weeks to make sure it's not degraded.

[Hughyhunter]

I think my 8400 just degraded, I did prime95 stable for 9hrs 2 weeks ago at 4.15GHz , V1.38

Now I need V1.39 to be stable , or maybe more

WTH with 8400 ??

Well... You really cant expect a chip to last very long running it under full load for hours and hours on end. If you did that to old Atholon chips you almost guarantee that they arent going to last very long.

I only do stability for a solid 15-30mins with each test. Then it's stable in my eyes... if prime95 finds instability at the 10 hour it's probably because the chips so hot and soft and worn... but really who cares if it's not stable at the 10th hour... who honestly puts their chips at full load (ie gaming, movie making) for 10 solid hours...? even then it's not going to be full 100% load the whole time.

Prime95 should not be run for 24 hour stability checks... the chips were not meant to do that when being overclocked. I could see that at stock volts but not with more juice.