lol....the problem is set to oc jumper which suppose to gime 2.4V oso jz got 2.03V...

Oh yes you can, I can turn off my CPU fan on my 3800 x2 by undervolting the processor. 60C max on full load, stock clock. Been offline last few days, or I'd have answered sooner.

YEAH! DMM is the way to go.. Onboard system monitoring chips are (almost) all FUBAR..

I had that problem too on my Tforce 6100. Even with the jumper its only 2.0v. Double checked with a DMM, no mistake there. Heard the Tforce 550 also suffers from the same problem. Any one else also having this problem? Very sad la, since according to datasheets most DDR2 is rated for 2.2v max (but at 60-65C max only).

u oso had the problem ah...
wander y biostar can't make us hav a lil extra volt to oc our ram...

Yeah, it sux man..and its hard to voltmod for more without messing around with the motherboard power regulation contoller IC. Last time on DDR easy only, can just connect the 3.3v to the vDimm lines so can OC BH-5 kaw kaw. Do that now on DDR2 and you -might- see smoke coming out.

hehehhe...bios OC its easy enough...everybody can do that...
btw...i will...kekekkeke!!!

i dunno how should i say this, but i think its quite dangerous when we set the vdimm jumper to 2.4v..

i saw my vdimm was 2.48v on the posthardware..lucky..
then i changed back to the normal jumper place..
and currently my crucial can go around ddr800 (divider 667) with unchanged vdimm..

now my target is, oc until the highest 1T can make..

aiyak but i dun aspect i can oc much wif the budget board oso lar...
for tat money wad i get is alr gud enuf hehe...

yah..one thing i realized is really silly bout our board is that it cant go between 2.1v and 2.4v ..id rather have the 2.2v jumper one lar if i knew....now i wanna buy the crucial ballistix also have to think twice..coz the rated voltage is 2.2v ... should have bought dfi

Well just to put things into perpective, those system monitoring chips are pretty off target. I've measured a few boards with a DMM and most of the system health readings are off target by a fair bit. So you don't know how accurate is the reading anyway.

FYI, most crucial ram (micron actually) have a max rating of 2.2v according to datasheets. But hell, if you feel extreme you might just say 'screw the datasheets'... which most overclockers are already doing without realising it, particularly for processors.

haha yeah and considering that the rams would be right under my tt big typhoons fan..i just might do that.....would it work at 2.1v in theory though? ive seen most reviewers say that it would at close to stock speeds but 1 or 2 have said that it wouldnt b stable...anyway..already ordered the pc6400 tracers 2x 1 gb kit..so hope for the bestlar..hahaha

It might, go ahead and try; undervolting to 2.1v quite safe (default for tracers is 2.2v rite?) and if its not stable you can always change back the settings.

If I'm not mistake official JDEC DDR2 specifications don't actually call for DDR2 to operate at 1.8v but rather a bit higher (not 100% sure, malas to read through the whole DDR2 official paper). Most DDR2 manufacturers found that the chips would run equally well at specified speeds at lower voltages and lowered the voltage possibly to reduce power consumption and prolong lifespan. But I think its possible, since most ram doesn't take well to undervolting, but can overvolt pretty high without burning out; meaning the voltage is specified towards the lower end of the acceptable range-unlike processors which are usually specified to the middle and can both undervolt and overvolt, though not very far.

This post has been edited by lohwenli: May 8 2007, 05:00 PM

but i did use biostar before, when the 939 era..and i can say that the measurements are exactly same with the one that i set in the bios..
so what happen with tforce am2 mobo nowadays?

Well, Tforce AM2 boards still overclock well, but there are some quirks, like those mentioned above.

About voltages, most of the time I find that the last digit (last 2 digits for vCore) of motherboard sensors not accurate. Guess you're just lucky then, your board reports accurately. Also depends on what software you use, some have been calibarated to give better readings.

gmorning..

just asking..

how 3600+ x2 stacks up with 3800+ x2.. 3600+ l2 cache is haf of that. is the performance gap very wide although they are at the same clock?

ermm..what is the diff between windsor n brisbane? i mean from oc view, heat n performance..

tq:)

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Added on May 9, 2007, 10:04 amgmorning..

just asking..

how 3600+ x2 stacks up with 3800+ x2.. 3600+ l2 cache is haf of that. is the performance gap very wide although they are at the same clock?

ermm..what is the diff between windsor n brisbane? i mean from oc view, heat n performance..

tq:)

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Added on May 9, 2007, 10:05 amhuhu sorry my mistake..

This post has been edited by F-22: May 9 2007, 10:05 AM

the performance gap is not that wide... you wont even notice the difference.
in calculation tasks like superpi 1m.... maybe u can see less than 1secs difference. it's because of the K8 architecture... less L2 cache size gives very little performance hit.

windsor = 90nm
brisbane = 65nm

brisbane can OC higher then normal windsor...
if u got good windsor...can OC like brisbane....but brisbane use low vcore then windsor..

for performance....maybe depends on ur rig spec....

This post has been edited by sempronic: May 11 2007, 04:12 AM

cpu performance, brisbane lags slightly behind of windsor at the same speed/cache size due to higher L2 cache latency.

thought thier L2 cache is the same....

The amount of cache is the same, but the cache runs slower. Google review to find out more about it.

oowwhhh...heard bout that......so it is true ar....errrmmm...