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Author Topic: 5970 - 1 GHash/s - Bad Temps?  (Read 4075 times)
QiVX
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July 05, 2012, 09:08:35 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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D4CH
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July 05, 2012, 01:47:25 PM
 #2

Is your watercooling functioning correct?

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July 05, 2012, 03:50:34 PM
 #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.

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July 05, 2012, 03:57:18 PM
 #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.

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July 05, 2012, 05:50:51 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.

Shadow383
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July 05, 2012, 07:42:49 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...
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July 05, 2012, 08:44:40 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.
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July 07, 2012, 06:39:12 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

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July 07, 2012, 06:44:37 AM
 #9

1 gh/s is really sick by the way  Tongue

very impressive

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Electricbees
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July 07, 2012, 11:11:39 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

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July 07, 2012, 01:13:01 PM
 #11

Your VRM's will burn out. 
Eventually you will see your hash rate fluctuated by 50 or so m/hashes
Once that happens your card will burn out in a couple of weeks or days.


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July 07, 2012, 11:01:18 PM
 #12

Your VRM's will burn out. 
Eventually you will see your hash rate fluctuated by 50 or so m/hashes
Once that happens your card will burn out in a couple of weeks or days.



Exactly.

But let him push his 5870 to 500 mhash and his 5970 to 1000 mhash because then lower difficulty for ME !

So this dood is getting 470 on 5870 and much more than 2*470 on a 5970 ?

I thought 5970 < 5870 * 2 ?

Whatever, it is his wallet he will burn ... we have warned him.

I suggest OP try for 1100 MHz clocks and 1100 mhash next !
QiVX
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July 08, 2012, 12:08:06 AM
 #13

Your VRM's will burn out. 
Eventually you will see your hash rate fluctuated by 50 or so m/hashes
Once that happens your card will burn out in a couple of weeks or days.



I leave all my VRM temps below 100 now. 5970 is now hashing at 950 mhash/s and clocked at 1000 MHz. Will VRM temps in the 90s burn my VRMs?

Thanks
ssateneth
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July 08, 2012, 12:29:13 AM
 #14

Your VRM's will burn out. 
Eventually you will see your hash rate fluctuated by 50 or so m/hashes
Once that happens your card will burn out in a couple of weeks or days.



I leave all my VRM temps below 100 now. 5970 is now hashing at 950 mhash/s and clocked at 1000 MHz. Will VRM temps in the 90s burn my VRMs?

Thanks

Looks like my post was ignored.

VRMs are rated for 125c.

Shadow383
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July 08, 2012, 03:49:34 AM
 #15

Your VRM's will burn out. 
Eventually you will see your hash rate fluctuated by 50 or so m/hashes
Once that happens your card will burn out in a couple of weeks or days.



I leave all my VRM temps below 100 now. 5970 is now hashing at 950 mhash/s and clocked at 1000 MHz. Will VRM temps in the 90s burn my VRMs?

Thanks

You should be alright I think...

What's the power draw on that thing?
bulanula
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July 08, 2012, 02:09:59 PM
 #16

Your VRM's will burn out. 
Eventually you will see your hash rate fluctuated by 50 or so m/hashes
Once that happens your card will burn out in a couple of weeks or days.



I leave all my VRM temps below 100 now. 5970 is now hashing at 950 mhash/s and clocked at 1000 MHz. Will VRM temps in the 90s burn my VRMs?

Thanks

You should be alright I think...

What's the power draw on that thing?

Tell me if the VRM was rated for 24/7 BTC mining ( which is known to force VRM and even power circuits in FPGA to extreme limits ) ?

NO. It is rated for 125 degrees for a few seconds mostly but not 24/7 at all.

Let us know when your card is fried and you can't even game on it anymore due to overheat and damaged components in that area !
QiVX
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July 11, 2012, 09:08:11 AM
 #17

Your VRM's will burn out. 
Eventually you will see your hash rate fluctuated by 50 or so m/hashes
Once that happens your card will burn out in a couple of weeks or days.



I leave all my VRM temps below 100 now. 5970 is now hashing at 950 mhash/s and clocked at 1000 MHz. Will VRM temps in the 90s burn my VRMs?

Thanks

You should be alright I think...

What's the power draw on that thing?

My VRMs are all running under 100 C.
That shouldn't be a problem running 24/7.

Then again, why should I listen to you, you do have scammer written all over you. (Nice guy that is)

Tell me if the VRM was rated for 24/7 BTC mining ( which is known to force VRM and even power circuits in FPGA to extreme limits ) ?

NO. It is rated for 125 degrees for a few seconds mostly but not 24/7 at all.

Let us know when your card is fried and you can't even game on it anymore due to overheat and damaged components in that area !
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July 11, 2012, 02:49:38 PM
 #18

get better tim for the vrm's

needs to be >=6w/mk

http://www.frozencpu.com/products/11654/thr-87/Fujipoly_Premium_System_Builder_Thermal_Pad_-_14_Sheet_-_150_x_100_x_15_-_Thermal_Conductivity_60_WmK.html?tl=g8c487s1292&id=8egaB6Cd
ummas
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July 11, 2012, 09:16:01 PM
 #19

It wont help.
I got 7 and that situation:
engine 750, mem 150, 1.05 vcore - DEAD every 3-4 Days and red liight on VRM every 2-3 weeks.
5970 Is watercooled, and max temp on it is 55.
I was using once 5970 with 1100 engine at 1.2 Vocre - temps had 45, and 90 at VRM - after 1h of crunching(boinc) i had hard hung.
It takes large amounts of power. VRM cant take it for a long run.
QiVX
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July 11, 2012, 10:24:47 PM
 #20

It wont help.
I got 7 and that situation:
engine 750, mem 150, 1.05 vcore - DEAD every 3-4 Days and red liight on VRM every 2-3 weeks.
5970 Is watercooled, and max temp on it is 55.
I was using once 5970 with 1100 engine at 1.2 Vocre - temps had 45, and 90 at VRM - after 1h of crunching(boinc) i had hard hung.
It takes large amounts of power. VRM cant take it for a long run.

I have my 5970 clocked at 1000 MHz and voltage at 1212. VRM temps are below 100 and in the high 80s now. Hashing at about 465 mhash/s 24/7 for about 1 week non-stop ad I haven't ran into any problems at all.

Maybe your card is faulty, because I ran my card for 3 days straight with the VRM temps in the high 90s and had no issue.

Then again, it depends on what watercooling gear you are running. I've got a GTX 480 Rad with 4 5400 RPM Gentle Typhoons on full blast, so yeah that's why my temps are so sweet. You may ask if noise is an issue, but I have this rig setup in my garage Smiley
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