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Old 07-07-08, 08:54 AM   #1
Tr1cK
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Default ATI 4800 series overclocking

Post your overclocks and modifications here.

VisionTek 4850
Stock cooler using AS5 on GPU only
default voltages
fan profile modded in original BIOS
700mhz GPU - CCC limited for now
1100mhz RAM (2200 DDR) - Haven't tested further.

Stable in AoC, WoW, TF2, 3dMark 06 & Vantage

EDIT
I got to playing around with it some more after seeing some very slight artifacting in WoW.
The highest I could get to pass in Overdrive is now 665-2150.
It seems to run a bit smoother though and not have the glitches at all.

Last edited by Tr1cK; 07-09-08 at 12:32 PM.
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Old 07-07-08, 02:57 PM   #2
LordJuanlo
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Default Re: ATI 4800 series overclocking

Sapphire 4870
Stock cooler untouched
Default voltages
Fan speed at 35% in XML driver profile (50șC idle, around 75șC load)
790 GPU (limited by CCC)
1100 memory, 4400 GDDR5, 140.8 gb/s (limited by CCC)

Rock stable in everything I throw at it, fantastic card!
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Old 07-07-08, 03:03 PM   #3
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Default Re: ATI 4800 series overclocking

for overclocking use http://downloads.guru3d.com/AMD-GPU-...load-1985.html
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Old 07-07-08, 03:12 PM   #4
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Default Re: ATI 4800 series overclocking

Diamond 4870

CCC OC to 790/1100
Fan set to 35% using profile HAX
idles around 50C
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Old 07-07-08, 08:46 PM   #5
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Default Re: ATI 4800 series overclocking

AMD GPU Tool allows over 850 on the core. Just make sure you can cool the card, because you'll lose the hotfix profile for the fan if you use it to overclock.
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Old 07-08-08, 07:09 AM   #6
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Default Re: ATI 4800 series overclocking

Quote:
Originally Posted by radeonred View Post
I am at 880core 4400mem rock stable during gaming.
With stock cooling? Have you tried using the modded bios on xtremesystems? What's your temp like? Gonna water cool mine when it gets here!
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Old 07-08-08, 09:49 AM   #7
Tr1cK
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Default Re: ATI 4800 series overclocking

I find that leaving the slot cover off that's beside the card also lowers the temps a bit because the air does flow that way. It was lower when I replaced my 8800 and left the cover off, then I put the cover in and temps went up a bit. I took it back off.
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Old 07-08-08, 05:41 PM   #8
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Default Re: ATI 4800 series overclocking

Got my Sapphire 4870 a few days ago

Pretty much the same as LordJuanlo results might try the AMDOC tool in a few days

Stock cooler
Default voltages
Fan speed at 30% set XML edit (anything above 30% and its noiser than my case fans ambi noise)
idle's around 54șC, around 78șC under load
790 GPU auto tune CCC limited 1100 memory CCC limited

Havent really thrown that many games at it yet as im finishing off mass effect and simming a lot in FSX ive thrown crysis & jericho in and done first level run throughs & sofar its so much better than my OC 8800GTS 640mb was (had it at 650core 1000 mem) infact i can now run jericho @x4 aa faster than the 8800gts @x0 AA !

its a fantastic card id recommend to anyone& im really glad to see ATI back in the game
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Old 07-22-08, 04:14 PM   #9
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Default Re: ATI 4800 series overclocking

Other fan control method:

http://professionalsat.blogspot.com/...ti-hd4850.html

Regards.

Carlos.
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Old 07-22-08, 04:26 PM   #10
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Default Re: ATI 4800 series overclocking

Quote:
Originally Posted by LordJuanlo View Post
Sapphire 4870
Stock cooler untouched
Default voltages
Fan speed at 35% in XML driver profile (50șC idle, around 75șC load)
790 GPU (limited by CCC)
1100 memory, 4400 GDDR5, 140.8 gb/s (limited by CCC)

Rock stable in everything I throw at it, fantastic card!
how much performance gain did you get?
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