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PowerColour Releasing Devil13 HD7990 In September

Freddie1980 said:
Those unofficial 7990's are one impressive peace of kit BTW

This is exactly why they dont ship them with a waterblock. A waterblock is comparatively a lot less impressive that this massive heatsink and so it wouldnt look right compared to the cost/performance

but I do wonder why Powercolor just didn't ship them with pre built waterblocks in the first place. The sort of power buyer who owns this stuff would most likely have a water cooling setup (lets face it the Devil13 isn't a mainstream product) to start with and that would solve the problem of how to keep such a powerful card cool. Add in the fact that Powercolor are having to ship this cards with a GPU support upright to keep it from snapping your motherboard it's a no brainer to me.
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it looks like it needs air cooling too, just in case, a large fan blowing over the cards in the side window at low RPM....no more than 400 RPM, one of those factory roof ventilators :D

its a massive case for that little mobo, but what can you do.. nothing ! because those cards look way too close together dont they
 
Starglider said:
I just bought four;

dual-tahiti-cards.jpg


Overclockers was taking too long deciding whether to maybe possibly make some watercooled 7990s with HIS, so we just got some custom copper/nickel heatsinks made up for the Powercolors. Currently testing with the original air coolers, will be mounting the waterblocks for 8-GPU overclocked testing next week;

dual-tahiti-testing.jpg


Host machine has dual overclocked 8-core Xeons, 128 GB DDR3-1600, quad SSDs (Kingston MAX-IOPS in RAID0), 3 x 4 TB HDDs in RAID5 for bulk storage, dual 10 Gigabit ethernet, touch-screen system management panel on the front, dual 1200W PSUs, dual pumps, quad triple-fan rads etc.

Initial testing has confirmed that AMD has finally fixed the 'can't disable Crossfire on dual-GPU cards' bug that rendered the 5970 and 6990 paperweights for OpenCL purposes. Currently seeing 90%+ scaling on OpenCL apps over two GPUs, will be getting 8-way scaling numbers next week.
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Good Grief!!!!!! are you crazy? :p

I want to be there when you first power it up, i'll bring plenty of torches with me to hand out to your neighbours.
 
Here are two of the liquid cooled quad-7990 machines being used for a demo / presentation;

present5.jpg


pitch2.jpg


Might make some more with the HIS 7970 X2s if/when they become available.

***NO JOB ADVERTISING ON THE FORUMS!***
 
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