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The 4800 series Driver, OCing, Cooling and Tweaking Thread

W1zzard said:
the hottest components of the card will reach around 100°C, all cards are engineered to withstand 105° operating temperature. asic is guaranteed to work up to 120°c. pcie plastic wont melt unless your house is burning.
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LOL with my 4870 no need for a space heater. Thx wizzard.
 
am now on 720/1000, just now i was playing GRID, and the display lockup with looping sound on Le Mans track. But when i try those tracks other than Le Mans, i can play it with nothing happen. Later i gonna try 1.2 patch see got improvement or not.
 
i run mine at 775/1000 and stable as a rock with stock cooler + fanfix@30%
 
Lol, yeah he doesn't have his technical terms down right.:laugh: It's worth a try though as I grow impatient for new drivers or rivatuner. I just don't want to be let down if my card clocks poorly.:o
 
Hmm, we are going to need the source of his findings to make sure he didn't leave anything else out.

Edit: As I ponder on this some more, it appears he deleted both the CoreClockTarget and MemoryClockTarget.
 
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It doesn't work.:(
 
Voltchange

has anyone tried to change voltsettings for 4870 in RBE?

so 1,263V to ~ 1,3 V ? is that possible and working or is a hardmod needed?
i´m stuck with 775/1050 and wanna know if it gets higher with voltmod in bios

cooling is AC S1 and temps fine.. regulators and vitex chip extra cooled with heatsinks and also fine.. getting red LED on backside when fur-benching the card.. should be no heat problem - think its due to lack of voltage

so if anyone changed succesfully the voltages - report pls :)
 
Yeah, I'm interested in BIOS or any other kind of "soft" modding the voltages of 4870. Haven't seen any mention of this in any forum, while it's widely known that 4850 can go to 1.21V through BIOS mod.

If anyone has any news about this kind of things on 4870, pls report, tnx! :) :respect:
 
I wanna know that too, I really dont wanna do a hardmod and void the warranty/ruin the card.

Cheers!
 
Somebody try then? Anyone here have a willing 4870 and a MM?
 
Does anyone else have problem's with stability in Windows XP? I can't run a game for more than 2-5 mins before the driver crashes, and I have to restart my computer. On Vista I never had this problem, it was nice and stable:)....Come on 8.7's, hurry up and come to me!
 
LuxZg said:
Yeah, I'm interested in BIOS or any other kind of "soft" modding the voltages of 4870. Haven't seen any mention of this in any forum, while it's widely known that 4850 can go to 1.21V through BIOS mod.

If anyone has any news about this kind of things on 4870, pls report, tnx! :) :respect:
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I read on an XS thread a guy with a voltometer measured his 4870 with 1.3V set in the bios... he got a ~1.27 idle and a ~1.285 at load anything higher just gives you the same value.... cant find the thread now, no time will do when i get home.

When i set mine to 1.5V the temps didnt come up much, but i did get 15Mhz more than before (this is on a card that would artifact at 800 at stock).
 
Urbklr said:
Does anyone else have problem's with stability in Windows XP? I can't run a game for more than 2-5 mins before the driver crashes, and I have to restart my computer. On Vista I never had this problem, it was nice and stable:)....Come on 8.7's, hurry up and come to me!
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i having problem under windows vista 64bit random driver crashes its starting to get alittle annoying lol
 
freakshow said:
i having problem under windows vista 64bit random driver crashes its starting to get alittle annoying lol
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That's odd, I never had driver crashes in Vista 64, or 32.....just Windows XP. Which drivers are you using?
 
Urbklr said:
That's odd, I never had driver crashes in Vista 64, or 32.....just Windows XP. Which drivers are you using?
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8.6 hot fix, what driver version are you using?
 
Same, jeez ATi, get us some good drivers!
 
I have my 4870 set at 790/1000 with a 45% fan speed. I stay around 48-52C on full loads depending on the room temp flux of 75-80F.

I have had no problems with CCC 8.6 on both Vista 32 and XP 64. These were both fresh OS installs though with no previous ATI/NV drivers.

@Freakshow: Have you done a full driver clean out before installing 8.6? I have had zero crashing on these fresh installs. I don't think there is anything wrong with the drivers besides possibly interference from previous versions.
 
Trizmatic said:
I have my 4870 set at 790/1000 with a 45% fan speed. I stay around 48-52C on full loads depending on the room temp flux of 75-80F.

I have had no problems with CCC 8.6 on both Vista 32 and XP 64. These were both fresh OS installs though with no previous ATI/NV drivers.

@Freakshow: Have you done a full driver clean out before installing 8.6? I have had zero crashing on these fresh installs. I don't think there is anything wrong with the drivers besides possibly interference from previous versions.
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yes i did using crap clean and driver cleaner lol:roll:
 
I tried messing with AMD Gpu Tol and CCC profiles but I finally gave up and just modded bios. As far as I was able to test by using Furmark on otherwise clean system (Vista 64) there is no change with temps after crossing 1.3V so I suppose that is max voltage as set via bios. And I won't mess with hardmod (well maybe pencil mod :) ).
Now here is how I set frequency/voltage and fan settings:

RBE_2.png


RBE_3.png


Fan ramp on is very steep and when testing in Furmark the fan hovers between 65-80%. So it's not quiet but it definitely is cool. Bios modding brings with it another can of worms as every change in memory frequency results in flickering of the screen. The target for my bios modding was to maximize power saving and also maximize speed in 3D. Memory in 4870 is quite power hungry, setting it to 300mhz in place of 900mhz (not my measurement) gets you around 20-30W. I can live with occasional flicker as it doesn't happen when playing games (gpu stays in High Power 3D). But some users reported that playing movies sometimes has gpu changing from Low Power 3D to High Power 3D and so flickering. The only time it happens for me is when I start BluRay movie (hardware decompression) but only first few seconds of the movie. From the GPU-Z I see that after few changes between 2d, lp 3d and hp 3d it stabilizes at 3d with occasional "trips" to lp 3d. Since I have the same memory settings for both, there is no flickering.
 
mat9v said:
I tried messing with AMD Gpu Tol and CCC profiles but I finally gave up and just modded bios. As far as I was able to test by using Furmark on otherwise clean system (Vista 64) there is no change with temps after crossing 1.3V so I suppose that is max voltage as set via bios. And I won't mess with hardmod (well maybe pencil mod :) ).
Now here is how I set frequency/voltage and fan settings:

RBE_2.png


RBE_3.png


Fan ramp on is very steep and when testing in Furmark the fan hovers between 65-80%. So it's not quiet but it definitely is cool. Bios modding brings with it another can of worms as every change in memory frequency results in flickering of the screen. The target for my bios modding was to maximize power saving and also maximize speed in 3D. Memory in 4870 is quite power hungry, setting it to 300mhz in place of 900mhz (not my measurement) gets you around 20-30W. I can live with occasional flicker as it doesn't happen when playing games (gpu stays in High Power 3D). But some users reported that playing movies sometimes has gpu changing from Low Power 3D to High Power 3D and so flickering. The only time it happens for me is when I start BluRay movie (hardware decompression) but only first few seconds of the movie. From the GPU-Z I see that after few changes between 2d, lp 3d and hp 3d it stabilizes at 3d with occasional "trips" to lp 3d. Since I have the same memory settings for both, there is no flickering.
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I had some glitchy problems with th 4850,s where the graphics would flicker in and out of the game along with the people and I uninstalled the smart docter from the asus uttilities for the 4850,s and the fan stayed at %50 and the glitches went away,,,All I can say is these drivers are really shitty for the 4850,s and hope they release a good one soon...Steve:banghead:
 
In case anyone wanted to know. If you have flashed your card, and are on the 8.7 Beta's, and the screen stays black when going into Windows, it is NOT a bad flash. The 8.7 Beta's just won't allow a high clock flash, boot into safe mode and get rid of the drivers, install the 8.6's. It will be all good from there.

Thought I would post that.
 
Sorry, but I'm running 860/1125 on 8.7 beta under Vista 64. No problem with the drivers and it's by bios flash not AMD GPU Tool. Please don't spread disinformation.
 
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