try this sir and i give the credits to MASTER JESSRUSSEL (asan na kaya si master, busy pa din siguro
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INTERMITTENT /No Display / Blank Screen
POSSIBLE CAUSE
1. memory ram
2. videocard
3. a low volt/undervoltage or defective PSU.
4. failing LAN CARD
5. Processor
6. motherboard
7. monitor
INITIAL TARGETS FOR ISOLATION
*MEMORY RAM
*VIDEO CARD
disconnect the power plug for own safety..
remove the memory module
Try erasing the pin connectors of your ram module by using a rubber eraser then re-install it back from its bank.
with a gud snapping sound na palagay mo eh ayus ang pagkaka-seating ng ram memory at ibang plug and play devices mo,in this process way of reseating it can clean some necessary contact pins against corroision with ur device..if confident ka na sa tunog ng pagkakasalpak mo ng devices..eh masasabi mo na sya ay "reseated properly"
then power on. if no go..
remove the video card (if present) and do the same procedure..then power up.
THEN YOU MAY POST UR RESULTS AFTERWARDS ..GUDLUCK SIR!