Tried switching video cards, no post

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Grievent - Dec 2, 2011 at 03:50 PM
Ambucias Posts 47310 Registration date Monday February 1, 2010 Status Moderator Last seen February 15, 2023 - Dec 2, 2011 at 04:09 PM
MSI 770-C45 AM3 AMD 770 ATX AMD Motherboard
OCZ ModXStream Pro 500W Modular High Performance Power Supply
XFX HD-577A-ZNFC Radeon HD 5770 (Juniper XT) 1GB 128-bit GDDR5 PCI Express 2.1 x16 - old video card
ASUS EAH6770/DI/1GD5 Radeon HD 6770 1GB 128-bit GDDR5 PCI Express 2.1 x16 - new video card

Replaced failing Radeon 5770 with Radeon 6770 and now it won't work.

Motherboard LEDs turn on, CPU and case fans turn on. Graphics card fan turns on and then keeps cycling faster-slower every five seconds or so. No signal through VGA or DVI.
The problem persists even when I put the old card back in.


Tried:
Unplugging and replugging everything
Reseating RAM
Resetting CMOD
Reseating both cards
Different cable from PSU to card
Dusting all components thoroughly

Any solutions or diagnostics on the issue?
Related:

1 response

Ambucias Posts 47310 Registration date Monday February 1, 2010 Status Moderator Last seen February 15, 2023 11,164
Dec 2, 2011 at 04:09 PM
Greetings,

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