good advice...i noticed the demo runs longer then the standard benchmark, mybe thats why it stress the card further...
finally i manage to solve the PROBLEM!! it's the CCC/Overdrive ....somehow if i overclock thru rivatuner the system manage to play crysis stable until 875/1300 and finish 3DMark06 up to 891/1300...and this was achieved thru the default BIOS supplied with the card...max temp 67c and of course fan at 100%

Even at 891/1300, with my F3 only can max till 10500 ...have yet to run the DEMO

Remember the key words: DEMO and HIGHEST RESOLUTION.

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Added on January 15, 2008, 9:42 amBenchmarking means nothing if you can't use the card properly. No need to compare with others. You have your own criteria to playability of games, optimal usage of resources, efficiency of processes...and of course, budget...

This post has been edited by clayclws: Jan 15 2008, 09:42 AM

modded the HR03 Plus and fit into my 3870
i'm using 120mm yateloon fan on it.

idle: 44C load: 48C

stock idle : 58C load : 65C

Great results. Looking forward to HR03GT~!

should be similar.
now on 1.65V vgpu, fulload 55C at 1012mhz

Wow...I wanna do pencil mod as well, once I get a 3rd party cooler...

wooo 1012mhz on core.. very nice.. crazy tol...
mine using stock 800mhz pon ada artrifact...

, gonna get ThermalRight HR-03 la like this... actually i do got mine, being reserved for quite some time, it's just that not sure if it fit on HD3870... it's the same cooler i use on X1900XT and 7950GT

wah dude, u dun really need 1.65vgpu for 1012 la
even 1.45vgpu can do 1012mhz on my 3870 and pass 3dmark06. But its not stable for long gaming session.
Beware when pumping voltages bro, i dont think 55nm are able to take up too much voltages...

what is the max for hd3850 with safe voltage? vmod by bios or pencil?

AFAIK, till now there is no voltage change by bios for HD3870, theorically its possible but i havent seen anyone sucessfully do it. The stock voltage is 1.33, the highest i ever go was 1.65v, but at 1.65 it doesnt make any difference with 1.55 because the max core speed was the same. 1.55v got my clock to 1012mhz, adding up to 1.65 does not help any further, im still stuck at 1012mhz. So.. for 24/7 usage im running 1.45v @ 958mhz which is currently the most stable clock.

And another thing that you guys should take note when doing pencil mod. You core temperatures wont shoot up alot since the 3870 runs rather cool natively. One thing that most ppl overlooked when overclocking a GFX is the Power Regulators. At 1.55v, the regulators are BURNING HOT, i cant even touch it for more than 1 second, its bloody hot. So many sure there is adequate cooling for the P.Regs. You can easily ziptie an 80mm fan directly to there and the fan blows ur rams and the pregs at same time. Ill take a pic of how i do it sometime later, its rather late now =(

ya, we appreciate if could do so ...my hands very itchy now to volt mod the card

Hmm...I'll wait and see if R680 works on non-CF boards. If it does, I won't bother with HD3870 mod...if it doesn't, I'll go get a multimeter.

i dunno much about 55nm max voltage.
but i've seen someone in xtreme forum claim that he'd tried 1.9v on the card with wc... the card has no problem with it.
he's using 1.7v for normal usage.
as long as you can control the temperature, you wont do any harm on the card itself.
for your info i'm using 120mm fan on the 3870, there's anonther 120mm fan at the sidepanel giving fresh air to it directly.

i tried 1000mhz with 1.52v but failed in cod4 within 3 minutes.

my card fulload at 55C, idle 50C.

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Added on January 16, 2008, 1:09 pmTR HR03 Plus does not compatible with 3870 unless you mod it(which takes quite alot of time).

This post has been edited by sukhoi37: Jan 16 2008, 01:09 PM

do remember no all ppl get nice chip like urs
sukhoi did mentioned at somewhere else tat he unable to pass over 1Ghz core before

@sukhoi37
nice clock sukhoi,my cards sux badly too
mind to share how do u mount hr03 plus?

This post has been edited by coolice: Jan 16 2008, 02:00 PM

hmm... in that case i think i should go for higher voltage and see how can i clock it xD
fyi, my temps for 1.55v @ 1021mhz barely go more than 40c on full load

Then again, sometimes in extreme overvolting, its not the temp that kills ur card. Temp kill your component slowly over a long period. While too much volt = instant death. Thats the risk that we have to take.. Even with chilled cooling/phase/peltier/DICE, and even with super cool temps voltage still can kill your card.

lol, your card also needs high vcore?

I just follow the mounting method from TR manual.

Ever wonder what happens when R680 comes out? Thermalright going to release HR03Duo? It'll be a sight to behold...like the submarine burger compared to normal ones...

cat 8.1 is out~~!!!

My Benchies.....cannot push higher

Specs

E6550@3.0
IP35-E
2 GB 800mhz Ram
HD3870@ 885mhz/1250

This post has been edited by ^666^: Jan 17 2008, 07:13 PM


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