XFX Black Edition R7850 crashing

[Daarthoff]

So I've got an issue here. I'm running an xfx R7850, and it runs beautifully on my old monitor which ran native 1280x720. I just picked up a new Dell S2340M which 1920x1080 should work beautifully on. Unfortunately, that's where the problem starts.

When I hooked it up, resolution auto-adjusted to 1280x768. So, I opened Catalyst, and selected 1920x1080. Screen went black, and a second later my system rebooted, in 1280x768. So, I re installed drivers, and gave it another shot. Same thing.

Then I tried it again, and the screen went black. This time, it waited a second, then informed me the monitor was receiving no signal.
I gave it about 5 minutes and restarted my computer. 1280 again.

I'm really not sure whats up with this, and I'm rather disappointed at the moment. Does anyone have any advice on this?

EDIT: Thought I should add, I'm using a DVI-VGA adapter-> VGA to the monitor.

 

[hizodge]

Can you try with a native DVI to DVI cable?

 

[Daarthoff]

I can give that a shot tomorrow, I'll need to pick one up. My first thought was the cable, the actual crashing is what confused me. I'll definitely try that as soon as I can get my hands on one though.

 

[hizodge]

Could you also list your system specifications? I'm interested especially in what motherboard and power supply you are using.

 

[Daarthoff]

PSU is a Thermaltake M850W, and motherboard is the stock m2n68-la that came in the HP (that was another spot i thought the problem could be coming from.) That will be getting swapped out with a Asus 990fx as soon as the bank account will allow.

EDIT: forgot... everything else.

OS: XP 64 SP2
RAM: 3GB
Samsung ssd boot drive
Black caviar 1TB storage

 

[hizodge]

The motherboard is PCI-E 1.0 or 1.1, not sure. Either way, while PCI-E is backwards compatible, what you might be running into is a bandwidth issue that comes up when you up the resolution. Try the native DVI connection first though, sometimes VGA just causes funny issues at higher resolutions. Not sure how adapters play into that, doubt they would help in any way at least.

 

[Daarthoff]

I thought I responded last night but apparenly not. I tried a dvi cable and had the same issue. Its looking more and more like a bandwidth issue with the PCIE.