ATI Radeon HD 5570 blank screen

[hikari920303]

My desktop:
motherboard : gigabyte ma77ot-ud3
amd phenom (tm) II x4 955 processor 3.20ghz
ram : kingstone 2gb ddr2 x2
power supply : coolmaster rs-460-pcar-d3
windows : win7 x64

currently having problem with :
grapic card : gigabyte ati radeon hd 5570

my pc runs fine for 1 year without any changes (i mean changes in hardware / driver).
however tis morning, i power on my pc, my monitor shows no signal
i tried both vga and dvi cable but still same results.
Yet, although there is no signal, my pc still can login into windows (knew as window boot up sound)
I removed my ati grapic and use on-board grapic (ati radeon 4200), monitor hav signal.

 

[Tmagic650]

"I removed my ati grapic and use on-board grapic (ati radeon 4200), monitor hav signal"...
Then the gigabyte ati radeon hd 5570 card is bad

 

[1977TA]

I had something like that happen a couple of weeks ago. Completely unplugging the pc and switching DVI ports worked. Mines not a gigabyte, but the same GPU basically.

 

[hikari920303]

ner~ tis gigabyte card have already used for one year
i hav another one with duo-core, hd4850 used for 3 years and now still using, didnt encouter any problem.
now i jz wanna to make sure the ati 5570 card had spoiled or not, if confirm spoiled den i gonna rma it
any ideas how to check? currently the duo-core desktop at another place

 

[Arris]

If you have the other machine and can try the card in that you will be able to confirm that the card is bad and not some other type of problem.

 

[hikari920303]

haha currently have another 2 spoiled p4 desktop, and another 1 laptop, how test xD