according to Biostar utility Vcore is 1.55V
CPU temperature is 28c now (air con la)

Speedfan confirms the above.

this is what i do for my Biostar 590-SLi...

in BIOS, I OC using automatic OC V8...so the Vcore set at 1.25 and vdimm at 1.95

then, use the T-OC Utility....set the vcore at 1.5 and vdimm at 2.05...

with these setting...i got 2663...HT 1333...temp. 65 full load....

works for me and finish superPI

must you touch vdimm? cos RAM speed still below 667 in my case.

i tried using that T-OC utility - my rig hang. donno why.

and with air-con on, my full load (running 2x FAH client) is around 62c - 64c. however this is subjected to my exhaust fan speed.

on 200 fsb... divider ddr 667 i set 1.8v..
but on fsb 266 with divider ddr 533.. ram will work on 667.. need 1.9v..
i'm still wondering why...

ok la....for temp...it varies according to room and place...
nothing much can be said....


on hang when using TOC ....hope that no conflict between BIOS and TOC....

coz sometimes when i switch to V6 on BIOS, then on TOC try to set V8 setting..
then it restart...

dont know why...maybe range of voltage allowable by limited..

of course la. been OCing for years, i had better know about this bit. haha.

just that this particular unit, i found that idle temp and load temp has a pretty huge gap.

not going to go off-topic here, that one i posted on another thread already.

now my concern is to find out V12 tech engine configuration and to tweak it out.

it's simple... whenever you are running on lower divider, the ram will set its timing according to SPD automatically

DDR2-400: 3-3-3-x
DDR2-533: 4-4-4-x
DDR2-667: 5-5-5-x

and tighter timing usually requires more Vdimm

---

Added on March 2, 2007, 6:56 pmby the way.... my cpu overclocking capability certainly increases after a few burn-in sessions.

last time at 280x10 @ 1.5V it was priming up to 8hrs before it got errors
then i reduced V to 1.475V which it errors at around 3hrs. then i gave it a few more burn-in sessions.

today it currently primes at almost 7hrs without error, that is at 1.475V. hopefully can drop the V to around 1.45V or less before i increase the clockspeed summore

EDIT: 280x10 @ 1.475V errors at 8hrs 13mins Prime

This post has been edited by soulfly: Mar 2 2007, 09:05 PM

@ Soufly

Why my motherboard only allows me to boot when i set my vdimm 2.1v?

Divider: 400
Timing: 5-5-5-15 (which is 667 SPD value)
HTT: 240
Multiplier: 9x

Any idea?? This is my corsair value ram. Is it ram problem or motherboard problem??

Thanks ya...


-pWs-

This post has been edited by -pWs-: Mar 2 2007, 10:37 PM

Is ur mobo specs same as the one listed in ur signature?

Ya...except the ram. Currently using xms2


-pWs-

soulfly remember to update #1 post ah.......

3600+ X2 Windsor F2 | goldfries | BIOSTAR TForce 550 | Kingston DDR2-667 | stock AMD cooler | 2500MHz

according to the table, at that setting your DDR2 should be running 432MHz. was that at 1T? if yes... that might explain it.

i can accept if using tight timing require more vdimm... but in both setup i used same timing.. 4-4-4-12-16 1CR..

with the same timing also can use on 220 fsb, 667 divider, v1.8 .. resulting 733..
but 260 fsb.. 533 divider.. resulting 650.. must use v1.9...

is it becoz of htt increased?

---

Added on March 3, 2007, 12:29 pmisn't it 2400/9 = 266
should on ddr 533.. mean normal vdimm should be ok?

This post has been edited by 8tvt: Mar 3 2007, 12:29 PM

maybe those other memory configuration which u left AUTO might be running tighter timing. check those auto values with A64tweaker

Yea ... Command rate was 1T. But i still cant understand what u meant? Mind to explain further?

Thanks !!!


-pWs-

tat means u nid 2t lor...

I know, but why 1T cannot ?? 1T more performance le....


-pWs-

ain't ur ram runin more than 400Mhz?
if more than 400Mhz u nid 2T for stability...

I'm not referring to performance... I'm referring to voltage requirement.

tight timing = higher voltage

as simple as that

hm.......Abit Kn9 Ultra mobo not stable when set to HTT beyond 266, for eg. HTT266 with run at 265, 267 with run at 266, pass 270 even worse!!! 274 = 272 loosing control......