Anyway to fix a radeon 5870 ?

[mores]

Yesterday I had an AMD/ATI radeon 5870 working just fine. ( never overclocked )

Today the computer will not complete POST. I have tried the card in 2 different systems:
- Award BIOS postcode stops at 26
- AMI BIOS postcode stops at 2A


The computer boots up with other video cards, just not the 5870.


Is there anything I can try to get this card working again ?

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[squall1066]

both codes point to ram!, strange but true.

asuming ami bios is pheonix then 2A - Initializes different devices through DIM.
are they paired or are you clocking the memory? If another card works in this system then i'm stumped.

[exotime]

Have you been overclocking? What were the temperatures like when mining? It looks like you've damaged one of the memory chips - in which case, there's probably not much you can do.

[mores]

The card is working again. I think this card has to "warm up" before it will complete the POST.

On a cold boot it stopped at 2A. Seeing that it was broken I just kept rebooting it and noticed the post code got a little farther than 2A. I waited some more to heat up, rebooted and it finally booted into the OS. ( Either that or the position of one of the PCI express power connectors was under a little pressure. )

I saw posts online of people baking their gpu in the oven to fix it. Before I went that far I was going to try a few other things. Now it is back to mining.

[mores]

My GPU has been running at 85 degrees.

I wanted to mine at a safe level without any overclocking. So I followed the executive summary of:

Single pool, dedicated miner:
cgminer -o http://pool:port -u username -p password -I 9

That results in gpu running at 85 degrees. The readme said all the defaults should be safe values.

I have now added --auto-fan so that the temp comes down to 75 degrees.

What is a safe temperature to mine at ?

[John (John K.)]

The lower the better. I usually run mine at 75, but that's just me.

[Portnoy]

The lower the better. I usually run mine at 75, but that's just me.

Me too. 

[Sekioh]

I'm pissed, I just lost a card yesterday too.

Noticed I checked on my mining and had no shares submitted in like 20hrs, and go to restart the machine and couldn't remote, it was hard locked so I restarted it and it had like 5 rapid beeps and the GPU fan started at 100% throttle. Powered fully down and turned off PSU, turned all on, and it starts to windows (no monitor so software-wise) and I can log in remotely since VNC uses software rendering, but as soon as I try to start mining fan jumps up and computer hard locks. :|

It was running 80-85 under normal conditions of full mining, I had fans set with a 85 ramp up as it approached up to 100% so that it kept that as a ceiling.

I find it really interesting that it's letting it POST from a cold boot until put under load. A warm restart is the only time it doesn't post after an error locked it up.

[grue]

I'm pissed, I just lost a card yesterday too.

Noticed I checked on my mining and had no shares submitted in like 20hrs, and go to restart the machine and couldn't remote, it was hard locked so I restarted it and it had like 5 rapid beeps and the GPU fan started at 100% throttle. Powered fully down and turned off PSU, turned all on, and it starts to windows (no monitor so software-wise) and I can log in remotely since VNC uses software rendering, but as soon as I try to start mining fan jumps up and computer hard locks. :|

It was running 80-85 under normal conditions of full mining, I had fans set with a 85 ramp up as it approached up to 100% so that it kept that as a ceiling.

I find it really interesting that it's letting it POST from a cold boot until put under load. A warm restart is the only time it doesn't post after an error locked it up.

well there's your problem

[mores]

Perhaps the default settings in the miners should have a lower temperature to run the hardware safely. ( 75 sounds like the recommended temp )

Then only allow the overclockers to run it hotter.


How long had you been running the card from 80-85 ?

[Portnoy]

Perhaps the default settings in the miners should have a lower temperature to run the hardware safely. ( 75 sounds like the recommended temp )

Then only allow the overclockers to run it hotter.

You can overclock a 5870 and still keep it at 75 or lower.  I use MSI Afterburner. 

[mores]

From the cgminer docs:

EXECUTIVE SUMMARY ON USAGE:
Single pool, dedicated miner:

cgminer -o http://pool:port -u username -p password -I 9

That maintains an 85 degree gpu.

All I am saying is that when that exact command is issued it should keep the gpu at 75 degrees.

[mores]

The card worked for about 24 hours and now it stopped again.

I see people are selling GPUs as parts or repair.... how much is a 5870 worth when sold as parts/repair ?

[on9isrock]

you can go to electronics shops/services to change the gpu part

[mores]

I guess they do have some value. Here is a non-working one currently bidding about $50 http://www.ebay.com/itm/HIS-ATI-Radeon-HD-5870-AS-IS-non-working-/221075979574