Question Graphics card doesn't output

[hammer_hands1]

so, i bought this old graphic's card and am trying to use it on my system, but it doesn't output. drivers are installed, the interface is correct and it was working correctly till yesterday. it shows on device manager, but doesn't output to my monitor

 

[Metal Messiah.]

Which GPU Model is it ? Was it a used/second hand card ? What does it say under the DEVICE MANAGER settings/field ? Can you at least see the BIOS POST screen at the time of bootup, or the Monitor just stays blank ?

How did you access the Device Manager settings when there was no output on your Monitor screen ? But anyway, what are your PC specs ?

-1. "Complete" system specs should ALWAYS be accompanied with any driver, hardware, or performance question. Do not post DXDiag reports as they contain a TON of useless information. Posting a DxDiag in place of a System Spec List tends to ward off potential members from helping you.

Please supply the following system details/information as much as possible. No need to provide each and every detail though, since this is just for reference:

(Complete System Specs)
-CPU make and model# (clock speed/voltage, type of cooler, and "Core" temperature @ idle and load)
-Motherboard make & model# (include Bios version if graphics card is not recognized or you are having stability issues)
-RAM (amount, clock speed, model#/link of kit, configuration)
-Graphics card(s) make and model# (clock speed, voltage if modified, Driver version and GPU temp both @ idle and load)
-Power supply make,model#, "AND" age (note if using 110V or 220V A/C input)
-HDD/SSD configuration (ie: Raid setup/ back up/ OS drive/etc..)
-Case/Chasis make,model# (fan make, model#, and configuration if having thermal issues)
-Operating System (If using Windows note Framework and service pack version)
-Monitor make, model#, and resolution (If model# is unknown list resolution and refresh rate)

*If "Crashing":
-Note the nature of the "crash" in detail, as there are several definitions for the word "crash".

*If the unit is a "laptop" or "All-in-one" system you must note the make and model# of the unit. Be sure you are ALWAYS using the OEM/manufacturer's Driver updates for the unit.

*If "performance" related issue:
-Note the "exact" point in which the performance reduction occurred (ie: After Windows update, After Bios update, After Driver update, After thermal system shutdown, After Hardware change/upgrade etc...)

*For diagnostic purposes please disable the following:
-Any/all Antivirus/ Anti-malware software
-Any/all OSD monitoring software
-ALL overclocks outside of factory spec .