Personal computing discussed
Moderators: renee, morphine, SecretSquirrel
Llathos wrote:http://www.newegg.com/Product/Product.aspx?Item=N82E16835181019
Why doesn't a product like this exist for GPUs...?
Waco wrote:My 5970 is watercooled - I went from the stock clocks (which I don't really recall...but they were relatively slow by any measure of the word) to well past 5870 clocks. The VRMs still get a bit toasty even under water, but I've tweaked it so they stay under 100 C at all times. 1 GHz core, 1.2 GHz memory.
cynan wrote:Sorry if this is a dumb question, but how do you measure VRM temps for your 5970? I'd like to be able to check mine...
mortifiedPenguin wrote:What water blocks are you guys using? I'm thinking of buying a new card (or two) since I discovered my 6950 isn't quite up to the task of driving my new 3x monitor array. If it happens, I'll probably add the GPU(s) to the loop. I am considering universal blocks though, I don't really care for the notion of having to buy an entirely new block for each GPU upgrade...
Even if it doesn't happen, it's probably time to change tubing; it's turned an odd shade of green even though the water is still clear . Any idea if DangerDen DreamFlex is as good as they claim?
Madman wrote:I always follow what's going on, but I have never tried the water cooled setups.
What I'm looking for is total silence, and if water cooled setups would allow for that, I would probably try. Zalman reserator some 5+ years ago seemed pretty neat.
But the PSUs are always air cooled, and this sort of breaks the whole fun.
Also, I'm afraid of leaks. I tend to leave my PC unattended from time to time, and some pipe getting loose over hot wires seems to be pretty dangerous.
lilbuddhaman wrote:H60 + Zipties = GPU Water cooling on the cheap
Threw mini heatsinks on all the exposed chips / ram
Dropped temps 20'C on my 6870, has been stable for more than 6 months.
cynan wrote:... the full block coolers really do a much better job cooling the VRMs on the HD7970 (and memory as well).
cynan wrote:I'm using the XSPC 7/16 internal diameter tubing. Been pretty good. Nice and flexible and resistant to kinks. I also find it a nice compromise in size between the more popular diameters. I have a bit of clear tubing in my loop, but it's still fairly new, so no word on how it discolors over time.
Arclight wrote:I have a question:
Is there no dielectric liquid that could be used to transfer heat instead of H2O?
mortifiedPenguin wrote:As an overall brand, I'm pretty satisfied with XSPC's stuff... the rad, pump, block, and res are all from XSPC since I bought a kit but I don't think I'll be trying their tubing again. When I redo the loop I think I'll try out either DreamFlex or just use Tygon.
mortifiedPenguin wrote:So, to further the discussion:
Think my RX240 can dissipate two 7970s and a 2600k @ 4.8? For that matter... I wonder if my kit pump can handle it.
Arclight wrote:I have a question:
Is there no dielectric liquid that could be used to transfer heat instead of H2O?
SecretSquirrel wrote:Arclight wrote:I have a question:
Is there no dielectric liquid that could be used to transfer heat instead of H2O?
3M Fluorinert FC-84 or FC-72, but it cost several hundred dollars per liter.
--SS
Waco wrote:Water is best for a reason - it's heat capacity. There aren't any good alternatives.
As for dual 7970s and an overclocked i7 on a single RX240...that's pushing it a bit far. A single RX360 cooled my dual 4870X2s and an overclocked Phenom II X4, but not well. At high loads my water temperatures were a good 20-25 C over room temperature. I would imagine even a single 7970 and i7 would be pushing it unless you don't mind high water temps (in which case...why are you watercooling?).
I run dual 360mm radiators now (with 12 Yate Loon low speed fans) to keep my temperatures WAY down. Even at full load I don't see a 5 C delta over ambient.
cynan wrote:I thought as much. I think I might want to start planning for a second rad then (pretty sure I have a D5 in my dual bay res). I think I can fit an RX120 or similar where the rear outtake fan is... assuming my Gentle Typhoons aren't in the way. Maybe add a second res for more water. Though going by Waco's comments, that probably won't be enough for a second 7970.One 7970 and a 2600k would probably be fine, if you are not trying to overclock much beyond what you could do on air. 2x 7970s plus the CPU I think is a pushing it a bit - even with the RX.
Waco wrote:That's... impressive. I don't suppose both those rads are internally mounted (I don't see your case in your sig).I run dual 360mm radiators now (with 12 Yate Loon low speed fans) to keep my temperatures WAY down. Even at full load I don't see a 5 C delta over ambient.
cynan wrote:Are you talking 5 deg C delta in water temp? Surely not in CPU core temp
mortifiedPenguin wrote:That's... impressive. I don't suppose both those rads are internally mounted (I don't see your case in your sig).