Bitcoin Forum

Hey there

I just bought a Gigabyte HD5870 and got about 300mh/s while mining.
My non-mining temperature is at 60°C and my mining temperature goes up to 98°C (I stop it there because I don't know if it could take any harm). How much heat can a 5870 take?

CPU & MoBo run at 60°C, no problems.

But I got a ATA HDD sitting there with freaking 120°C all the time. Anything to do with that?

So should i get an extra fan or underclocking or what? And where can I find a comprehensive list of flags?

Thanks for help.

Which operating system are you using? Are you running in a case or caseless? If in a case, does your case have good ventilation?

The first thing I would suggest is turning up your video card's fan to 80%-100% and seeing if that helps. Those temperatures are definitely abnormal -- especially if not overclocked. You should aim for < 80 C IMO.

In Windows, you can use MSI Afterburner to adjust the fan speed.

In Linux, you can use:

export DISPLAY=:0
aticonfig --pplib-cmd "set fanspeed 0 100"

My guess from your other temps is that you are running in a case and have very poor airflow.

98C is way too high (though won't melt your card for sure). HDD 120C on the otherhand, is totally crazy, you can cook an egg on it. Get a 240mm case fan and blow hard at it

As said in the topic I don't have any fans. Built in PSU, built in CPU, two built in GPU - that's all!

I just left the side open because of the newly installed hardware but after 5cm there's a wall of my desk so it's not that open.

If you don't have any fans, then you need to buy some! This is a fan i've had my eye on if I needed to get one: http://www.newegg.com/Product/Product.aspx?Item=N82E16835168006 (http://www.newegg.com/Product/Product.aspx?Item=N82E16835168006). Seriously though, how long have you been running your hard drive at this temp?

Lol, about 5 years? It's a 120 GB Thing. Shouldnt have been any colder earlier, or?

I have a Sapphire 5870 overclocked to 900 core / 314 memory, hitting 392 MH/s, and with the fan at 40%, the temp is steady around 73C. The computer is in the basement, where it is cooler, but the case does not have any extra fans directly near the card. The only fans are on top of the case over the CPU, and surrounding the PSU. (case is Antec P182, PSU is on the bottom).

Have you tried turning up the GPU fan yet? And again, what OS?

lol that's a long time. Does the temperature ever move from 120C? You may have a broken temperature sensor. Try touching the hard drive. If it's too hot to leave your finger on it, then you should get some air moving on it. As for your other parts, you really should get a fan for them. I'm used to idle temps 25C-20C  lower than your idle.  My load temps are generally less than 60C, except the GPU - mine maxes just below 70C.

GPU Fan is running at 100% while mining.

System cools down to 45° while not in use, graphic-card 60°, HDD 108°


The box even says its 25% less hot. Wonder how much the card is used by a pc game.

Windows 7 64Bit!


Edit: I seem not to be able to switch on voltace control in Afterburner. Where's my problem (turned it on in afterburner's settings, did restart the program, not the pc - do I have to restart PC?)?

A $5 case fan is a great investment for an expensive graphics card. Newegg has a ton of fans, shipping time is the only concern from there. Also, when you get decent airflow through your case, you should be leaving it closed. Having the sides off will disrupt the ideal airflow and cause the air to not follow the in-the-front out-the-back/top model.

And have fun with those self tapping screws!

I have 2 5870 running in 2 different boxes at 940 core, fan at 60%.  They are both under 70C

those are dreamvalues. Below 70°C at 60% fan! I get over 90° with 100% Fan. And two crashes (maybe from using Afterburner).

yeah just doublechecked to make sure I wasn't crazy.

940 core
300 mem

Fan 60%
Core temp 60C
stock voltage
412MH/s

Visiontek reference cards

Was your 5870 used?  If so, make sure to clean out the fans and internal heat sink fins.  It'll make a world of difference if they're clogged with dust.

Buy fans. Get air moving THROUGH your case (in one end and OUT the other end).

You are very lucky your hard drive hasn't died - I hope you have good backups.

Keep your GPU under 85c and your cpu under 65c. If you don't you will shorten the life of both dramatically or just kill them flat out.

This HDD can't be 108°C because it feels to cold.

But my GPA is hot in stand-by. 60°C and I can feel the heat on the card.


Yes it was used, but it was very clean. Didn't notice any dust  (didnt look that much, but you know..). May it be returned because it was too hot? I bought it as a retour-ware.




With Mem at 600 and clock at 425, I get 170mh/s with an temperature of 83°C

What are your ambient temps like in hell! Get some water cooling! :D

I got a fan doing 1500 RPM. I installed it in the mid-rear and it does like, nothing. CPU and stuff seems 2° colder but thats all.

If I'm running guiminer I get 110°C and the system crashes.

Looks like a broken card...

For the love of god man, buy a fan!  I have 8 of them in my case and I'm still worried about my 75 C temperature.  If you're running at 98 C, you won't be for long.  A fan is cheaper than a new GPU.  You can get a good one from newegg.com for $10.

Simple test to see if the heat is due to the lack of fans, or the video card:

1. Open the case.
2. Point a box fan next to the case, and crank it up.
3. Try to mine.

If you are still experiencing 90+, it's the card. I had an 8800gt that was brand new and would overheat very quickly - I got it RMA'd, and the new one has been working fine for years.

I opened the case earlier and pointed the fan to it, I could get about 89° on 370mh/s if I remember right. Now with closed case and the fan in the rear to let the air flow out the box I get my 99+ again..

avtually running 200mh/s at memory 180 and clock 459, at 88°C. Case closed (what a pun.)





@Ognasty: how do you get 8 of them into your pc? show me a pic? where do you get the electricity from?


I guess I'm letting the pc run even lower at night and buying a second fan tomorrow morning.


Btw, I'm from germany, I won't buy anything at newegg because it's... well, shipping costs?

Btw got a Papst Fan for 12€.

I run my single-6990 miner with the case open and a big AC room fan pointed at the whole shebang. It is A LOT less noisy that way.

Try re-seating the HSF, and use good TIM!
Unless you have 100°F ambient temps, there is no reason why any card should be running that hot at stock voltage! If you are excessively OCed, there is your problem! If not, it sounds to me like the HSF is not FLAT on the GPU die, or your GPU fan died!

GPU Fan is running, Heatsink seems to be adjusted properly. I actually have to underclock this card to use it for mining.

I'm trying to bring them back into the store and get a replacement if the sink's alright. Thanks

Try if you can get your hands on a beQuiet  (http://www.be-quiet.net/be-quiet.net/index.php?StoryID=1&websiteLang=en)PWM/USC SilentWings Fan. They are engineered in Germany and are the best I ever had. I mean these badboys are completely coated in rubber! oO


Q: Would you position a fan to blow between the GPUs from the Top or from behind in direction of the caseslots?

doggy style:

||
||
^

or on the top:

||
x
||

btw, rhats my fan design for now.
-----  Card
 [ /|\ ] - Fan        Actual Setup (Open Case, Fan blowing into the pc, under the card)



close setup is


[ <- ] Fan

----- Graphics Card

---- Sound Card            This setup is with case closed, blwoing air out of the rear.

So , maybe I wanna try undervolting next. Afterburner doesn't work with voltage on non-msi products, so I have to go to the BIOS. Any help with that?

On other notes, the GPU crashed with 95°C and wouldnt work anymore, so I installed my old e-geforce GTS 8800, which runs at ~ caution ~

80°C standby and 100° mining 21 mhs. And this thing won't die!

This seems a lot like a bad-airflow area, but I installed a 8mm fan, letting some air out and when my 5870 crashed, the case was opened and a normal sized table-fan was letting the air either against or away from the card (tested both, no real differences).

How do I add more fans with only 2 basic fan-pins on the motherboard?


Boy, when I'm finished twerking that card, difficulty is 2 steps up...

I think you should take some pictures of inside your case to show us how your setup. It really seems like your lacking proper airflow...

Yeah, I know. I installed only one 8mm fan to let out the air, but my Card crashed when the case was open, and a table fan (approx 1 foot) was cooling the card. It got 95° hot and died out. So we got a Card that's too hot, even with unusual cooling AND a Case that has bad airflow.

Trying to get another card and getting more fans.

You could try with a more massive copper block and/or liquid metal as heat conducting paste. But be careful with the stuff it is quite nasty and can cause shorts if you use too much.

Me trying to reassemble a GPU is quite.. dangerous? :D

I'm happy my CPU is running with my coating...

Posted somewhere else allready, but may be useful for you. I have my case open and clipped something like this next to it
http://www.amazon.com/Holmes-HACP7W-UC-7-Inch-Clip-Personal/dp/B00006WNO4
They sell biger ones in Hornbach for about 4EUR in CZ, maybe in Germany too. Not as noisy as cheap PC fans at same effect :)