Opteron 140 overclock

[Facedeharicot]

Stepping:

OSA140CEP5AK
AAAHC 0324SPMW

works on ASUS SK8N rev1.03

ram:

single 512Mo PC2100 Micron Technology with only 2.7v who works great at 205 cas2.5 2 2 0



cpumark stable @ 2252MHz
3D mark 2k1 stable @ 2236MHz (i think a little more)
Super Pi 1 Mo stable @ 2252MHz

All at stock vcore


With 1.75v :

Screen max



Cooling:

Water cooling

[cpulloverclock]

U want vmods?

[Facedeharicot]

thank you my firend

i think i can have 2400MHz but it will be hard for the chipset

[Facedeharicot]

:banana4:

[DevilsRejection]

I can only imagine the ECC in the ram is helping it be stable? i don't know much about ecc or how it works so im talking out of my butt hehe.

[Wrench]

I had a 240 a new one it overclocked well using standard Heat sink I got it to 2 gihz. I had a 246 but I couldn't get it over 2.3 gihz stable for some reason. I had some nice Corsair 3200LL ECC reg ram it flew I got like 6 gig mem through put.

[Noktar]

Nice oc.
Maybe you can get Sub ZeroCooling or Window opened ?

[Wrench]

I think they Lock the BIOS on purpose as soon as the board detects the Opteron.. I had a Sk8N 1.03 with initial BIOS release when I put a 146 Opteron in it was detected as an engineering Sample and the Voltage control got Unlocked. Unfortunatly the BIOS sucked and could OC as much as I could with new BIOS'. I think if you could fool BIOS in reading Opteron ID it could unlock the Voltage controls. The New 90nm Opteron are going to kick ass at ocing because of 55 watt heat disapation.

Oh I found the Sk8V was much better for OCing for some reason.

[G H Z]

I can only imagine the ECC in the ram is helping it be stable? i don't know much about ecc or how it works so im talking out of my butt hehe.

Generally it corrects single-bit errors server's running massive up-time experience, and minimizes system crashes/data loss as as result.

[Facedeharicot]

Nice oc.
Maybe you can get Sub ZeroCooling or Window opened ?

Thanks

next holidays the cpu will take 5° C water or colder why not :banana4:

i'm sure i can go higher with more voltage like 1.75v

[Facedeharicot]

Yes i can go higher with 1.75v





screen max but it's not the cpu i think

[thephenom]

is it 32MB SuperPI stable? or Prime95 stable?

And.............*drool*

[misteroadster]

I think it's the world record for A64 in percent ?
Good work my friend

[misteroadster]

+75% exactly
Nobody can compete

[Facedeharicot]

is it 32MB SuperPI stable? or Prime95 stable?

And.............*drool*

SuperPI 32MB stable at 2350 is think but :





All my results are on single channel !!!!


Thanks to my friend misteroadster

[misteroadster]

[RaptorRaider]

I've never seen anyone overclock with an Opteron like that...
With some nice TCCD chips and a 5:4 divider your Super PI results should get even better.

+82% exactly
Nobody can compete

2449 / 1400 = 1.75
350 / 200 = 1.75

Isn't that an overclock of 75%?

[misteroadster]

1400x(75/100)=1050 you're right sorry , i've done a mistake.

[Facedeharicot]

it's a little hard to screen i think



PI 32MB with single channel:



currently running at 2350MHz

[Facedeharicot]

I've never seen anyone overclock with an Opteron like that...
With some nice TCCD chips and a 5:4 divider your Super PI results should get even better.



2449 / 1400 = 1.75
350 / 200 = 1.75

Isn't that an overclock of 75%?

i can't use TCCD chip because this motherboard works only with ECC REG ram
(i would like to put my BH-5 sticks or BH-6 on it with 3.8v but can't)

[EnJoY]

For the love of god, give your ram some TRAS...your choking your ram and not allowing it to perform lol. Give it a tras of 5 or 6 and I guarantee that you'll see better bandwidth.

[Facedeharicot]

it's better with TRAS at 0 in many benches

[Shade00]

I'm honestly surprised that that board can handle that kind of HTT. What's the PCI bus running at?

[misteroadster]

the Sk8N has pci/agp locked as all nforce3 M/B just boot with 201 FSB.
It can handle 350 Fsb rock with LDT 2X.

[Facedeharicot]

tonight testing with 4 x 512Mo PC2700 ECC REG Infineon
to hit 34 sec Spi 1MB