Radeon HD-8570 Sends Blank Signal

[Swisscheesy]

Spoiler

This afternoon, after removing and re-seating my perfectly functional AMD Radeon HD-8570 (not the integrated one) to perform a bit of chassis maintenance, I discovered to my dismay that the monitor, despite its clear detection of a signal from the graphics card, would only display a blank black screen. Nevertheless I could tell via auditory cues that the PC was POSTing and booting into openSUSE without any problems, and the GPU fan was spinning normally. After resetting the CMOS had no effect, I replaced the HD-8570 with an old Radeon HD-5450; the HD-5450 sent a crystal clear signal to the monitor with no problems whatsoever. The same DVI-D cable and monitor input were used with both cards. I ground myself every time I service a computer.

TL;DR: Basically, what I wish to know is whether there is any way to restore the HD-8570 to a working state. I would hate to see a good graphics card like that die an inexplicable death, especially since my best alternative at the moment is the aforementioned HD-5450. Please let me know if after reading the spoiler you would like more details.

 

[Shaun o]

If we are talking about a Pci-e based graphics card and it no longer outputs a video signal.
It can be an indication the card has seen the last of it`s days.

It tends to mean that the Gpu on the card got so hot that the core burned out.

So your option is to take the cooling solution off the card.

And perform a re flow of the Gpu it`s self in the hope that it is a bad solder joint on the card and not a complete gpu burn out.
It would take to long to detail how to do it in steps so here is a link describing what to do step by step for a re flow in detail by using and ordinary home kitchen oven, you can use the same steps for a motherboard from a laptop ect also that has a fixed Gpu to it also Swisscheesy ok.

http://www.deskdecode.com/how-to-repair-a-graphic-card-by-re-flowing-solder/

 

[Swisscheesy]

If we are talking about a Pci-e based graphics card and it no longer outputs a video signal.
It can be an indication the card has seen the last of it`s days.

It tends to mean that the Gpu on the card got so hot that the core burned out.

So your option is to take the cooling solution off the card.

And perform a re flow of the Gpu it`s self in the hope that it is a bad solder joint on the card and not a complete gpu burn out.
It would take to long to detail how to do it in steps so here is a link describing what to do step by step for a re flow in detail by using and ordinary home kitchen oven, you can use the same steps for a motherboard from a laptop ect also that has a fixed Gpu to it also Swisscheesy ok.

http://www.deskdecode.com/how-to-repair-a-graphic-card-by-re-flowing-solder/

Thank you for your suggestion. However, this seems to me to be a very risky trick and as such I will use it only as a last resort. After all, it does involve literally baking the card! What puzzles me is the fact that this card is less than a year old, and it did not show any signs of dying or even slowing down before today's events. Nevertheless, I will concede that it has been used for heavy gaming in a small chassis, and as such it probably got rather hot. My passively cooled HD-5450 used to get up to about 62C under similar loads, but unfortunately I have had issues with AMD Radeon temperature sensors in Linux and as such could not monitor temps on the newer card.