Bitcoin Forum
December 09, 2016, 04:10:14 AM *
News: To be able to use the next phase of the beta forum software, please ensure that your email address is correct/functional.
 
   Home   Help Search Donate Login Register  
Pages: [1]
  Print  
Author Topic: Slow 5870 card. Advice sought.  (Read 774 times)
sgravina
Sr. Member
****
Offline Offline

Activity: 442



View Profile
March 25, 2012, 02:34:35 AM
 #1

I have a Diamond 5870 which stopped working.  It would not display video at all.  I tried to get Diamond to fix it but they only say it's out of warranty.  They won't answer the question of how much it costs to fix it.

So I put it in the oven at 350 F for 10 minutes and let it cool.  This on the idea that there was some broken solder on the card and the heat would rebind it.  The card still didn't work.  So I left it alone for a month.  Then today I tried it again just to make sure it was broken and it works!  But it is slow.  I have run it at 620 MHz gpu / 300 MHz memory for 10 hours now.  At 630 / 300 it only last 10 minutes.  At 850 / 300 it last 5 minutes.  At 900 /300 (where I usually run a 5870) it dies instantly.

Any idea of what the problem is?  Why did it not work and then work again?  Can I make it work better?  Should I use it as is (it does about 280 MH/s) or should I try to sell it as a deficient card?

Sam
1481256614
Hero Member
*
Offline Offline

Posts: 1481256614

View Profile Personal Message (Offline)

Ignore
1481256614
Reply with quote  #2

1481256614
Report to moderator
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1481256614
Hero Member
*
Offline Offline

Posts: 1481256614

View Profile Personal Message (Offline)

Ignore
1481256614
Reply with quote  #2

1481256614
Report to moderator
1481256614
Hero Member
*
Offline Offline

Posts: 1481256614

View Profile Personal Message (Offline)

Ignore
1481256614
Reply with quote  #2

1481256614
Report to moderator
1481256614
Hero Member
*
Offline Offline

Posts: 1481256614

View Profile Personal Message (Offline)

Ignore
1481256614
Reply with quote  #2

1481256614
Report to moderator
DeathAndTaxes
Donator
Legendary
*
Offline Offline

Activity: 1218


Gerald Davis


View Profile
March 25, 2012, 02:41:54 AM
 #2

Did you ever try to run it that slow before?

Possibly one of the VRMS are bad.   At higher clock the remaining VRM can't supply enough power to keep it stable and the card crashes.
sgravina
Sr. Member
****
Offline Offline

Activity: 442



View Profile
March 25, 2012, 02:54:43 AM
 #3

Did you ever try to run it that slow before?

Possibly one of the VRMS are bad.   At higher clock the remaining VRM can't supply enough power to keep it stable and the card crashes.

I never ran it slow when it was a good card.  I have about 30 cards and not the time to mess around with them.

Is there a way to test that idea?  Maybe read the voltage as I increase the gpu frequency?  If it is the problem can I fix it?  I don't mind soldering but can't do really fine soldering because I don't have a good quality soldering iron.  And I don't like working too much on dumb problems like this.

Sam
DeathAndTaxes
Donator
Legendary
*
Offline Offline

Activity: 1218


Gerald Davis


View Profile
March 25, 2012, 03:00:10 AM
 #4

If it is a bad VRM you will be able to see it in GPU-Z.  Goto sensor tabs look for VRM temps.  If one shows no value or significantly lower than the others it is likely bad.

The bad news is this is just academic.  It can't be fixed without extensive work.  Hell most OEM don't even fix them.  They just toss them and give you an RMA that was easier to fix (like dead fan).
Pages: [1]
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!