NVIDIA graphic card not working with samsung monitor but fine with other

[Izwan Rahman]

Hi guys, I repair pc as a side job so you can guess my skill is rather intermideate.

However I encounter this problem with samsung SA100 monitor that reject my gt8500 graphic card.

its not a new gpu but working fine with other PC and various monitor CRT and LCD.

But with this particular monitor, whenever I plug in vga or DVI with vga adapter bios will give me gpu error beep. Connect with other LCD and it boot fine.

edited*

Ill try to update this as detail as possible

this is the PC spec:

Monitor: Samsung syncmaster SA100 (only got VGA port, no DVI or HDMI)
card: Nvidia GT8500, GT610, 7800, ATI 4380
Motherboard: Asus P5QL Pro, Intel P43 chipset, no built in VGA
PSU: Seasonic S-Series 620W
RAM: kingston Hyperx 4gb kit (2gb x2)
Hard disk: 120gb Samsung EVO 840, WD Green 1TB

situation 1:
upgrade to gpu GT630 beacuse old GPU failed

tested on crt monitor (conveniently available), everything up and running,
tested on actual Samsung SA100 monitor, seems start to windows (hear windos sound) but no display, no bios either

tested the card on another PC also same problem and returned to vendor for replacement.

situation 2:
waiting for the replacement, I put old GT8500 ( which used to be working fine with above mentioned pc)
No Joy
put another old Nvidia 7800 belonged to another PC; start showing bios and load windows.

situation 3:
put back GT8500 to asus board and start with samsung monitor, it gave me 1 long 3 short beep code (indicating gpu error), no display

restart and swap with another 3 display, each with restart between swap, viewsonic, dell & benq; ALL show bios and successfully load windows

situation 4:
put ATI 4380 (this one using extra 6 pin power)
connect to samsung, it start to bios and load to windows

situation 5:
put GT610 and connected to samsung
beep 1 long 3 short, then another 1 nornal beep, no display but seems to start windows (hear windows sound)
tested with 3 other monitor and display load flawlessly

situatuon 6:
tested gt8500 on other PC with same samsung monitor; no diplay
tested GT610 on other pc with same samsung monitor: no display
tested another PC with built in intel HD3000 display; have display

summary:

nvidia GT8500: X
nvidia 7800: Y
ATI 4380: Y
nvidia GT610: X
other pc intel HD3000: Y

other tweak:

tested with different plugs & power point: no joy
upgrade bios on asus P5QL also no joy

I'm now writing this on the same samsung SA100 monitor connected with my other PC with intel HD3000 vga after swapping with my viewsonic monitor

so as you can see I cannot all say the GPU is all bad or the monitor is bad

I am at my wits end

please help

 

[amd4lif3]

maybe its died due to static build up

 

[Izwan Rahman]

that would be my guess too, but i can assure its working fine in other pc / monitor.

this is my first time encountering this kind of problem.

BTW the monitor is using external power adapter. maybe I should change power source, irregular current maybe?

 

[amd4lif3]

does the card still warm up

 

[Izwan Rahman]

i updated my post for better explanation of situation

 

[amd4lif3]

probally gpu driver issue, so uninstall all drivers and try if the card works if it does then install driver try that

 

[Izwan Rahman]

tq for the suggestion, but when the display not loading i mean nothing on display, blank, not even bios start up, nor windows boot animation.

OK not entirely blank, it display small mouse icon for about 5 second at the centre. I believe its an icon gesturing mouse movement, showing that the monitor entering power saving mode and I need to move the mouse to activate the display back.

I did tried with other disk drive just to test,

 

[amd4lif3]

reset monitor may have wierd setting factory default is what you want emmm try go in , via safe mode

 

[Izwan Rahman]

hi, no display on safe mode too.. in fact the monitor doesn't seem to detect any signal so it went sleep mode

 

[amd4lif3]

guessing that gpu good for grabage