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if these cards are dud then i hate to say it, nvidia are the best (dont call me fanboy!), this is the first ati card ive had, all nvidia cards ive had have been flawless.
i also thought it was just Sapphire cards, but seems to be others too.
Hi hominid,
I too have the same issue, but I have to power cycle about 8 or 9 times before it works, but once it works it's perfectly fine until I power off again, it even survives reboots, the problem only occurs when I power off completely.
I suspect it's an Asus mobo issue, as I have a P5N-E SLI, and looking on the intraweb many Asus users are experiencing the same issue.
On a good note, just had mine overclocked to 850mhz core on default vcore, and it ran furmark quite happily for some time. Temp were 86c-88c with auto fan, which maxed out at 44%.
All in all I'm quite happy to live with the boot issue as I'm gonna be upgrading to an i5/7 soon anyway (E6420 @ 3.2ghz currently).
Regards
Spec
Come on Loadsa, what's happening? The suspense is killing me!
mine ain't a 5XXX series but, when i boot pc up at any point, the fan on the card spins at 100% for 1-2 seconds then goes back down to what i believe is (auto). nothing weird, i just thought it was the time taken by the mobo to take control over the card.
Hi hominid,
I too have the same issue, but I have to power cycle about 8 or 9 times before it works, but once it works it's perfectly fine until I power off again, it even survives reboots, the problem only occurs when I power off completely.
I suspect it's an Asus mobo issue, as I have a P5N-E SLI, and looking on the intraweb many Asus users are experiencing the same issue.
On a good note, just had mine overclocked to 850mhz core on default vcore, and it ran furmark quite happily for some time. Temp were 86c-88c with auto fan, which maxed out at 44%.
All in all I'm quite happy to live with the boot issue as I'm gonna be upgrading to an i5/7 soon anyway (E6420 @ 3.2ghz currently).
Regards
Spec
Theres definitely something wrong with these 5850's (unless this is normal for them), as i thought mine was a goner today.
Switched on, took about 10 seconds or so to start loading, fan on the card went 100% for a split second or so (as is normal), hard-drives kicked in as normal as well, then instead of the post screen appearing and booting, for some reason it just seemed to hold itself for about 5-10 seconds (monitor LED going off/on, black screen), before the post screen appeared and it began to load, very odd.
Hope you can finally get it sorted, im going to have to see whats buggered on mine, as i planted a screwdriver through my mobo yesterday when trying to get the 4870 out, couldn't get the white clip on the end of the PCI-E down to get it out (as was only a smidge sticking out, and couldn't get me hand down due to other cards in the way), so stupid me thought about pressing it down with a screwdriver, but slipped, snapped the clip off, and screwdriver straight into the board (or so i thought, as i checked it all over and not a mark/gouge could be seen), so buggers knows, and its been running perfectly fine, been hammering games and everything, so it may just be something to do with being off for hrs (cold boot)
I guess if the screen only goes dodgy before windows loads on a cold boot, then i can live with that, just ave to keep an eye on it.