I could really use some help here. I have tried many different things and am at a loss.
Issue - after some time (anywhere from 1 hour to 3 hours) my monitor goes black and a window pops up stating "Lost Signal". The computer continues to run however I am noticing that the light on my Sapphire GPU blinks intermittently. Nothing will get it back on except a full system restart.
*Note* This is brand new hardware (listed below) with a complete new install of Windows XP-32bit SP3
Solutions - I have tried these...
1. Updating GPU drivers
2. Updating MOBO drivers
3. Windows Updated fully
4. Re-installing Windows
5. Run through the thread "system wont boot, no video output" checklist
CPU: AMD Phenom II X4 955 Quad Core 8.0mb Cache w/Heatsink Fan (brand new)
MOBO: Asus M4a89GTD Pro USB3 (brand new)
RAM: G.Skill F3-10666 DDR3-1333 CL7D-4gb (2 sticks) (brand new)
HSF: came with CPU (brand new)
HDD: WD Caviar Black 1 TB, SATA 32mb Cache (brand new)
PSU: OCZ 420w (about 8 years old) I am wondering if this is the cause of my issue?
GPU: Sapphire Radeon HD 5770 1GB GDDR5 (brand new)
DVD: Samsung 16x (about 8 years old)
CASE: Antec Plusview II (about 8 years old in excellent condition)
Thermal Compound: Came with heatsink
MONITOR: Acer H233H LCD (about 6 months old)
Not sure if this is part of the issue or separate, but I also cannot hook up a 4' HDMI cable between GPU port and LCD. Get same message..."Lost Signal". Currently running monitor off of the VGA port.
Thanks for any and all assistance. You guys/gals are the best around and if anyone can figure this out it is you folks!!!