ATI 4850 Driver Issues

Dec 27, 2009

So yeah, everything was working fine when I was in XP SP2 a month ago.

I upgraded to Windows 7 (fresh install) and I've been having a ton of problems.

First there are screen-redraw problems in almost every application

Photoshop and illustrator are the worst affected. Sometimes when I type text, it's 'streaming'. Everything was fine under XP. Even when I drag on desktp, it kinda' lags.

Second when I play games like counter-strike, the fps keeps spiking every 2 minutes, which was not present in XP. I used to get flat 100fps on XP now it hardly touches 100.

I've updated to the latest graphic card drivers and installed hotfix etc., still no avail.

I think this is most likely a graphic card problem, so if someone could advise me or help me solve this, that'd be much appreciated.

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ATI 4850 Dual Screen

Jul 21, 2009

I've a single ATI with dual monitor connections,

as Im using windows 7 and the latest Windows 7 x64 drivers from ati (after installing all drivers in the latest history)

I lose my second screen(screen remains in sleep mode) after the sleep mode initiated . It seems to be a programming error in the driver...

I can get the second screen up by the following sequence simple logging out --->>

switch User ... logging back in ( it takes some time after loggging in though....

Is there a way to detect what sequence(command) is sent to the screen and if I could add that sequence in the loggin...

I've the impression service from ati is bad they've simular reports dating from the beggining of Vista and never bothered to change anyting (by the way never had such problems in XP).

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ATI 4850 / Samsung LN32A650 Problem

Sep 24, 2009

My computer has a Radeon 4850 hooked up via VGA to Samsung LN32A650

Running Vista Ultimate 32 bit, no problem, TV is detected and native 1920x1080 resolution is supported.

ATI Catalyst 9.9 is installed.

Running Windows 7 64bit (updated with latest patches) and Catalyst 9.9 64 bit drivers causes a "Mode not Supported" message on bootup.

I can get the Windows 7 to go to 640 x 480 mode sometimes and then change the resolution to 1366 x 768 but no higher.

I have seen other people with similar but not identical symptoms but no clear solution.

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Need More Powerful Than Xfx Radeon Hd 4850 1GB Card

Nov 14, 2012

Like the title above says i need something more powerful than the xfx radei HD 4850 1GB but not to expensive, Sure it still chugs a long fine but lacks newer dx features, I only payed $130 when i bought that card a cpl years ago but I'm looking for something cheaper than can beat it in performance. That and ati just put that card in legacy support Model HD-485X-ZDFC rev.2.1 if you all want to look up the specs has double lifetime warranty one of the reason i bought it, Had it replace by xfx once when capacitors started leaking in an older revision of the card.

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Sapphire 4850 Won't Display A Picture

Sep 28, 2009

I purchased my new computer on Christmas 2008 due to the sales they had that day. When I first got it, it work perfectly fine without even downloading the drivers. I'm a developer for a game and I use various software needed for graphics editing. I play a 10 year old game (Sony's Infantry) almost everyday on average for 1 to 3 hours a day and my system temps are pretty normal. Around 40-50C temps when playing. I use compressed air every 2 weeks and my case is nice and tidy so there's no dust bunnies or anything of that sort.The problem arose during the month of August 2009. There were no artifacts or blue screens or anything like that. The computer would just suddenly turn off on its own and when I tried to power it on, it did not display a picture. I saw the CPU fans spinning, the HDDs were running, all the cables are connected properly, the video card (sapphire 4850) fan was on and there's 1 beep code.

I asked my friend to borrow his old 8600GT and my computer worked normally. He suggests that my PSU may not be supplying enough juice to the GPU. I thought it might have been the mobo. But my friend is more knowledable than I am. I ended up buying a new PSU. The PSU ended up not solving the problem. Then I buy the same exact card that gave me the problem and a new motherboard and installed the drivers.. that didnt do it either. With basically a brand new computer minus the RAM, I end up with the same results.

Original setup:
Intel Q6600
Sapphire ATI 4850 HD
Asus P5E
Antec 500W
G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800
Antec 500W Continuous SLI Certified CrossFire Ready 80 PLUS Certified
Windows 7 x64
Windows Vista x64

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