AMD HD 7990s

[scole of TSBT]

Well, I picked up a XFX R7990 for decent price. Looked like new when I got it.

I experienced slower than expected performance too, so I flashed it. Flash worked fine, CCC 13.12 installed fine, but didn't run correctly. Tried several times, but finally had to re-flash with ROMs from XFX. I did get the performance where I wanted it though, by simply using CCC to increase the Power by about 15%. Had to run fans wide open though.

Then Friday night hit. Our company shuts the AC off in the evenings and weekends. With temps here in the 90s and air as thick as pea soup, the office warmed up quickly and so did the gpu, so I had to back it down a bit.

Came in Saturday to see what I could do to get it ramped back up. My office was like a sauna. Had to get the air moving in there. Took the front cover off, moved it away from the wall, setup a small fan, stuck my hand in the bottom of the case to see if I could tell how well air was moving, then...SMACK! A finger touched one of the fans. Suddenly I heard a very bad sound. The fan did not sound right. Shut er down, pulled out the gpu to have a look and....D@MMIT! Broke off a fan blade! It still works, but I can't run the fan on one GPU any faster than 45% else it starts wobbling.

Can't find a replacement anywhere. Waiting on a response from XFX support. Looking for a broken XFX 7970 or 7990 on Ebay. If you can stop laughing long enough, how about suggestions? (other than keep my hand out of the PC case when the system is running)

[Janos (retired)]

...then...SMACK! A finger touched one of the fans. Suddenly I heard a very bad sound.

Thought you were about to say you lost a finger! Damn you had me going for a second!

[Silver]

Doh
can I suggest that you keep all of your digits outside the case in future
Please see below my list of slightly more helpful suggestions:
Any chance you could superglue the blade back on?
Possible to fit another fan in place of broken one?
Could be a great excuse to do a Rob and watercool 8)

[robmacagain]

Tell you what min i don't know how you can stand the noise of the fans up over 60% anyway they had me bouncing off the walls with the racket they made, get it water cooled, its good for your sanity .

[robmacagain]

Schole, i can do you a favour if you can stomach the postage and get one out to you, i think that there all reference design so one of my fans will fit, any good?

[Alez]

then...SMACK! A finger touched one of the fans. Suddenly I heard a very bad sound.

and people wonder why helicopter tail booms are covered in warnings May I suggest installing wire mesh covers as your next project

[scole of TSBT]

It did hurt like the dickens. I looked for blood. Got lucky though, none. I appreciate the offer for the fans, Rob. I think the PCBs are all the same but different companies put different coolers and fans on them, so I'm scared of paying the postage to see. UPS website only quoted express rates which were over $150 US for a 1 lb package . I already went over budget with the card and a few parts to get the "spare" system running. Water cooling would mean a new case (no place for radiator in current case) plus cost of all the cooling parts. Have think about that one. Might be able to swap some gpus around to get the most benefit out of it. For anyone else considering a 7990, I think there's a reason there's no after market air/fan coolers. Not sure they can handle the load on mining/folding/BOINC apps. So either be prepared for running fans 75% or higher with the case open or be ready for water cooling. A duel 7970 system is easier and cheaper to deal with.

[robmacagain]

Sod UPS, the Royal Mail are quoting £9.75 and on XE.com (currency converter) it said that was $16.72, thought that may be cheaper than a new fan if you can find one, so if you feel the need its there.

That's the reason i put my system under water right there , how about 90% fan and 85c constant, the noise was deafening and the heat it was bunging out in the room was mental!

[scole of TSBT]

XFX was nice enough to send me a new fan, no charge. All I had to do was was register on their support site, register the gpu and open a ticket explaining I needed a new fan. Back to running full out without temps climbing too bad.

[Silver]

Thats a bit of a result, respect to XFX