HD5870 cold start artifacts

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thej762000
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Joined: 03/05/2009
Posts: 23

Hey folks, thought maybe somebody here could give me a clue... I bought a Diamond HD5870 to replace a burned out 9800GT on Sunday. I installed it on Sunday, put the latest drivers on (11.3) and everything seemed to work well. The following morning, however, I noticed that after booting to the desktop I got little green dot artifacts on the desktop. After being on for about a half hour these artifacts went away and the card performed as normal. This has repeated on Tuesday morning and this morning. I've tried re-seating the card and moving it to a different slot without any change in results. I've also run FurMark and GPU Tool stability tests and found no artifacting. Could this be anything other than a bad card? System specs below:

Gateway FX6800-01e
Intel Corei7 920
9GB RAM (3GB pre-installed, 6GB Corsair XMS)
WD Caviar Black 2TB primary HDD
Corsair HX1000W PSU
Diamond HD5870 (appx temps: 45C at idle, 75C at load)

Cooler Master ATCS 840 Case / Asus Rampage IV Extreme / Intel Core i7 3820 3.6 Ghz
Corsair H80 / G.Skill Ripjaws 1600 32GB RAM / Diamond HD 5870
OCZ Vertex 4 256GB SSD x2 / Western Digital 2TB HDD x2 / Corsair HX1050 PSU
Logitech G19 Keyboard / Logitech G9x Mouse

ihatenvidia
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Joined: 04/01/2010
Posts: 143

might be your monitor, check it for dead/stuck pixels.

dosmond
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Joined: 07/11/2001
Posts: 76

I had the same thing happen on my gtx 470 the video cable coming out of the back of my pc was (ever so slightly) loose, check connections, I had green pixels and a few green stripes.

____________________________________________________ Antec Sonata III Case w/ 500W Earthwatts PSU Intel Core 2 Duo E6600 Dual Core 2.4Ghz @ 3.2Ghz Gigabyte GA-965P-S3 LGA775 Arctic Cooling Freezer 7 Pro LGA775 Seagate Barracuda ST3320620AS 320Gb-7200rpm SATA II Maxtor Diamondmax 6Y060L0 60Gb-7200rpm ATA133 Lite-on DVD-RW SOHW 1693S Zotac Nvidia Geforce 8800 GT AMP Edition Patriot Signature Line 4GB PC2-6400 Dual Channel ____________________________________________________

thej762000
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Joined: 03/05/2009
Posts: 23

Switched out the DVI cable and no change, still getting little green dots on cold start. After a half hour they go away and everything runs normal, which leads me to believe it is not dead pixels on the monitor. Should I return this card (in which case I would probably have to get a HD6870 to replace it) or is this something I should learn to live with?

dosmond
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Joined: 07/11/2001
Posts: 76

I'd say your best bet is hook up the monitor to another pc or even a laptop, if there's no green dots, then I'd check with tech support for your video card, try for a rma on the card.... Does your card just have vga out, try that as well. Best bet though is trying the monitor on another laptop or pc

thej762000
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Joined: 03/05/2009
Posts: 23

I've switched out monitors, same result.. I really don't think this is a monitor problem. Seeing as how these artifacts only manifest themselves at cold bootup, and how the HD5870 requires more power than the 9800GT (2x6pin power vs 1x6pin) could this be a PSU problem?

hnkftalnot
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Joined: 10/14/2010
Posts: 262

I've seen weird problems due to a bad PSU, but the first suspect here is the video card. Don't try to live with it, it's a fault. RMA the thing and hopefully it was the culprit.

thej762000
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Joined: 03/05/2009
Posts: 23

OK, thanks. I bought it from Fry's so I'll see if I can do a simple exchange.

eire1274
eire1274's picture
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Joined: 09/12/2003
Posts: 1159

Sounds like there is an issue with a heat pipe that is not correctly removing heat until it gets good and hot. Rare, but I've seen something similar on a CPU cooler where one core couldn't go past 50% until the heatsink had gotten good and warmed up.

Exchange.

Nick McDermott