xxx stands for what?!
Hi guys,
so glad I have come across this thread, I too have had the same problems as you and have spent the last two weeks cursing every component in my computer.
Basically i have the same card, xfx radeon hd4850 bought from ocuk on the 25th of march. I noticed the problem when playing crysis it hangs after a few minutes with looping sound and locks me out of the system. Only a hard reset will get the computer back on.
I have tramped through various forums and tried many ideas, so far i have:
updated ALL drivers,
disabled onboard sound
formatted then reinstalled windows xp and vista.
new power supply, modular, £60, same problem (dont really want to spend more than this on a psu as i might as well just get the 4890 for the same price)
memtest for 24hours, no problem
updated the motherboard bios
new case fans, at one point i had a desk fan blowing straight into the side of the case, i havnt seen the card above 70C so I dont think its a heat issue.
had 123seconds out of furmark
other various little things like trying different plug sockets but all to no avail, im sure there is more, i'l post back if can think of anything else...
3DMark runs fine
I RMA'd the card on the 2nd of april to OC, it was tested and a replacement card arrived this morning...
however, I'm still having the same problem...
i could RMA the card again and swap for something else or maybe a refund but for those few minutes that the card works its so impressive that I actually want this card...
I am at a complete blank for what this problem is, my system is only a few months old... intel quad 2.4/4Gb DDR2 ram
anyway i'll keep checking the thread as it seems there could be a solution if this is happening to a few of us...
Chris