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Topic: 5970 - 1 GHash/s - Bad Temps? - page 2. (Read 4460 times)

sr. member
Activity: 322
Merit: 250
We are bees, and we hate you.
July 07, 2012, 07:11:39 AM
#10
I was not aware that 1Gh/s was even possible on a 5970... That is just outrageous hashing power for an old card...
Mine would only do about 700Mh/s a piece... Tongue
member
Activity: 111
Merit: 10
July 07, 2012, 02:44:37 AM
#9
1 gh/s is really sick by the way  Tongue

very impressive
legendary
Activity: 1344
Merit: 1004
July 07, 2012, 02:39:12 AM
#8
VRM's are "high" but they are also rated to 125C and within tolerance. Your waterblock probably just has a big chunk of metal over the VRMs and no fluid nearby to take away the heat. Either that or the heat output from those tiny little VRM chips is too concentrated to effectively pull away. This is why I think many people complain about high temperatures from Ivy Bridge CPU's. You're running a much smaller die with marginal power improvements, so the heat output per square millimeter is much higher and more difficult to draw away (less surface area), even with the use of a heatspreader
newbie
Activity: 17
Merit: 0
July 05, 2012, 04:44:40 PM
#7
Yes, those VDDC temps are too high, they should be in the mid to high 80s preferably lower. I would perhaps change the coolant tape between your waterblock and them.

I'm currently in the midst of rmaing a card for running lower temps than that but on air.
sr. member
Activity: 336
Merit: 250
July 05, 2012, 03:42:49 PM
#6
Very impressive clocks and core cooling - Are you using thermal tape for the VRMs or what? Might want to take a look at that...

Also how much power is this thing getting through? I know for example I can mine on my 7970s up past 1200Mhz, but if I do so my humble rig will draw >1200W at the wall and it's no longer worth it  Cheesy Peak profitability for me is ~970Mhz @ 0.96V. Wouldn't be at all surprised if you can increase your actual profitability by downclocking and reducing voltages anyway...
legendary
Activity: 1190
Merit: 1000
www.bitcointrading.com
July 05, 2012, 01:50:51 PM
#5
No, that temp (28c) is awesome for the core.
My concern would be the VRM's those are pretty dang hot. I try to keep my VRM under 100C. Also, I dont know what the max current rating is for the VRM's or even if there is such a thing given they stay under their temp thresholds.

Also, I dont know what the max fan speed is for the 5870 but running at 100% speed will kill that fan pretty quickly.
yeah i was referring to the VRM's.  I didn't even notice how chilly that core was, that's very impressive!  See if you can get some better cooling on the VRMs and you're styling.
legendary
Activity: 2450
Merit: 1002
July 05, 2012, 11:57:18 AM
#4
No, that temp (28c) is awesome for the core.
My concern would be the VRM's those are pretty dang hot. I try to keep my VRM under 100C. Also, I dont know what the max current rating is for the VRM's or even if there is such a thing given they stay under their temp thresholds.

Also, I dont know what the max fan speed is for the 5870 but running at 100% speed will kill that fan pretty quickly.
legendary
Activity: 1190
Merit: 1000
www.bitcointrading.com
July 05, 2012, 11:50:34 AM
#3
That's a helluva clock.  I would downclock it a bit, 95C is too high for my liking, I usually like to stay in the 80's personally.  Those are some voodoo temps.
member
Activity: 68
Merit: 10
July 05, 2012, 09:47:25 AM
#2
Is your watercooling functioning correct?
member
Activity: 81
Merit: 10
July 05, 2012, 05:08:35 AM
#1
Hey guys,
I just recently got myself a 5970 with a waterblock, and so have that 5970 watercooled, while my other 2 cards, another 5970 and a 5870 are still on air lol.

Are these temps dangerous for a 5970 on WATER?



Overclock settings:
Voltage: 1250
Engine: 1100
Memory: 350

---------------

I am running just a simple water loop just cooling the 1 5970.
Just using some XSPC D5 Res Pump thingo, GTX 480 Radiator (yes I know overkill but got a good price on it), and 4 (yes four) 5400 RPM Gentle Typhoon.

The fans are pretty powerful so I'm not really sure why I get 30C core and 100C VRM. Totally strange IMO.
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