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DVI-D port stopped working - 2nd build

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#1 Bat5454


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Posted 12 February 2010 - 07:00 AM

I built my 2nd system about 5 months ago using this Gigabyte motherboard with onboard grapics:
GIGABYTE GA-MA785GM-US2H AM3/AM2+/AM2 AMD 785G HDMI Micro ATX AMD Motherboard - Retail

The DVI-D port suddenly stopped working - Its been fine since I built the rig, but after a power-outage shut the system down one day last week I no longer get a signal from the DVI-D port.

I do get a signal from the D-SUB port and am using it, but -

Whats the diff between DVI-D and D-SUB ? Not sure if its my imagination but the graphics don't seem as sharp using the D-SUB port.

Gigabytes tech support has been no help so far - if they offer to replace the board, is it worth doing just to be able to use the DVI-D port?

Would I need to re-install the OS (Windows 7) & everything else?

The system isn't used for gaming, so the onboard graphics have been fine for everyday use.


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#2 Platypus


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Posted 12 February 2010 - 07:11 AM

The DVI is digital, the D-SUB is analog VGA. Your observation is correct, the image will not be as crisp.
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#3 Bat5454

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Posted 19 February 2010 - 02:22 PM

Well, I couldn't get any help from Gigabyte - they said I'd have to send the motherboard back in for warranty work, they didn't have any other suggestions to try to fix it.

So....I figgered I'd just put in a semi-cheap graphics card rather than have to tear my system up & send the Mobo in for weeks or months.

So I bought & installed this
GIGABYTE GV-R455D3-512I Radeon HD 4550 512MB 64-bit DDR3 PCI Express 2.0 x16

for 20 bucks after rebate, & guess what - I get no DVI from this card either. I get DSUB but no DVI.

What could it be? I installed the drivers that came with the new card, I reset the defaults in BIOS, no help.

I've tested my monitor & DVI cable on another system & they're fine - no problem.

Any help would be greatly appreciated - its driving me crazy....



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