Member Avatar for GDAVID

After I changed to a newer video card, shut down and started again my monitor has been dark, no display. RAM, processor, drive are all OK; the video card is in its slot and I have confirmed that all cards are firmly in their slots.
Does anybody have an idea of what I should try next?

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swapped to a newer GPU and the system now shows no display; replies from , and touched on compatibility and BIOS/adapter issues. The notes below add focused diagnostics and observations that haven't appeared yet and will help narrow whether the fault is power, board-level, cabling, or a defective card.

A very common unseen cause is missing or insufficient GPU power. Many cards require a dedicated 6‑pin or 8‑pin PCIe feed and will not initialize with only the slot power; a card that never spins its fan or shows no board LEDs is a strong sign the 12V feed or PSU rail is at fault. PSU capacity and the health of the 12V rail are important — swapping in a known-good PSU or using a different modular cable can quickly isolate that possibility (avoid live-voltage measurements unless experienced).

Motherboard-level diagnostics are useful next. POST beep codes or motherboard Q‑LED/VGA indicators point directly at video initialization failures; an amber/VGA LED usually means the GPU never handed off. Physical inspection can catch failures too: bulged capacitors, scorch marks, cracked heatsinks, or a stuck fan. For older AGP systems, incorrect AGP voltage or jumper settings can leave a card dead; for very new cards on older boards, a BIOS update can sometimes add support but should be a last-resort action and done carefully.

Cables and signal types matter: try a direct digital connection if possible — passive DVI‑to‑VGA adapters will not work with DVI‑D outputs. Note whether the monitor shows a "no signal" message (no sync) versus being completely dark (likely power). If the card receives proper auxiliary power, fans run, and motherboard diagnostics still show a VGA fault after these checks, the GPU is likely defective and requires RMA or replacement. These steps complement earlier suggestions and narrow the likely causes to PSU/board/configuration issues or a DOA video card.

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Member Avatar for Moshtaba

I have the same problem i tried everything maybe you should use it in another computer and if it doesn't work its the video card

Member Avatar for sittas87

Welcome moshtaba
-check if the card is compatible with your mobo
remove your card and reset your cmos (to longer you leave cmos out the better)
once thats done startup with previous GFX and check for new card compatibility
??

Member Avatar for Sheikh's

Hey David and moshtaba!
Couple of questions for you.
What is the model number of the graphics card that u r trying to use?
WHats the motherboard model number?
Have you tried disabling the onboard VGA through BIOS incase u have one before connecting the new graphics card?
Are you using any adapters to connect the monitor to the graphics card? Could u explain your setup?

Member Avatar for knowl

I use a company video card to my PC. When I changing video card monitor doesnot display. Could you give some mored details about good one on Video cards. Give some information to solve this display problems.
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knowl

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