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I have a older hp pavilion dv4000 and wanting to know if im able to fix the black screen when power on with 4 beeps which makes it unable to do any commands due to the black screen
HiDepending on the age of the PC and the BIOS vendor...https://support.hp.com/us-en/document/bph07107
EG: -- LED blinks 4 times --- Graphics
Graphics controller failure.
Test the Main-Board with the minimum hardware & re-seat all connections and graphics cards.
If the issue persists, send out Main-Board and if applicable graphics card for Mobile Workstations.
A Nod Is As Good As a Wink...Lil_Boy_Blue
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