Probably borked graphics card, but...

[Sleepery]

Well my 4870 died last week - didn't blow or have a fan failure or anything, but I didn't get any picture when booting the PC, not even the post screen, monitor just goes straight to sleep. I know the PC's ok cos I can hear the windows start music. No error beeps from the 4870.

I slapped in an old 8800GT and it boots up fine, so I order myself a new card, a powercolor 5770.

Which does exactly the same thing as the 4870 - monitor goes straight to sleep as soon as the PC powers on, never see a graphics card flash screen, a PC post screen or anything.

I'd just assume it's a borked 5770, but it seems a bit suspicious that it should act exactly the same way as the old 4870. Anyone come across anything similar? I hadn't made any hardware or software changes, running Win7 64bit.

 

[Shakeel]

put your 'borked' cards in another pc if you can that way your sure if its the cards

 

[jorzeh]

If you are using a DVI connection try just a normal VGA connection to the monitor.

 

[BigRazer93]

Clear the CMOS. Worth a try. Power issue's?

 

[han_solo]

Above posts sounds like a good move

 

[Sleepery]

If you are using a DVI connection try just a normal VGA connection to the monitor.

Yep, this did it. Weird, I'm using a normal DVI-D connector. Maybe it's not quite standard spec or something. Seems to be a fairly common problem from reading the AMD forums too.

Going to load up the proper drivers and see what it looks like. Don't really want to be stuck with a vga connection though

 

[BigRazer93]

Yep, this did it. Weird, I'm using a normal DVI-D connector. Maybe it's not quite standard spec or something. Seems to be a fairly common problem from reading the AMD forums too.

Going to load up the proper drivers and see what it looks like. Don't really want to be stuck with a vga connection though

Could be a faulty cable then mate or pins bent in the dvi port on the screen?

 

[Sleepery]

Right, really weird :

I plug the DVI cable into the other port while the VGA cable is in, then plug the VGA cable out, and it works fine with the DVI

I'm afraid to reboot my PC now though

Edit - yep, reboots fine now with just the DVI cable, very odd.

Thanks for the help all anyway