Member Avatar for wilko1995

Hello,

My graphics card - Gigabyte GT630 - wont send a signal to the monitor. Could someone please explain how to get it to work? thanks

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  • Latest Post Latest Post by rubberman

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A few targeted hardware checks that often get missed when a card gives no video at all.

Build a minimal bench system and work top-down: power, physical connections, firmware, then replace parts if needed.

  • Confirm the card actually gets power: some GT630 variants have a 6‑pin PCIe lead — if present make sure it is fully seated. With the PSU switched on watch for GPU fan spin or any board LEDs; no activity usually means no power.
  • Inspect for shorts and seating problems: remove the card, check the PCIe slot for debris, ensure the retention clip engages and that no screw/standoff is touching the PCB underside.
  • Try a pure digital cable (DVI or HDMI) instead of a passive DVI->VGA adapter — many outputs are DVI‑D only and will show nothing on an analog monitor unless an active adapter is used.
  • Clear CMOS (jumper or remove battery for ~30s) to force default video selection, and attach a motherboard speaker or use debug LEDs to read POST codes. Those codes narrow down whether the board, RAM, CPU or GPU is stopping POST.
  • If the card shows fans/LEDs but still no POST, test with a known-good PSU or try the card in a different PCIe x16 slot (if available). A marginal PSU or a damaged slot can let a card work elsewhere yet fail in this system.

Follow s general isolation idea but prioritize power, shorts, and firmware/POST feedback before software. If all hardware checks fail and the card works in another machine, the motherboard slot or BIOS may be at fault — check the motherboard manual for BIOS recovery or USB BIOS flash features, and consider RMA for the board if the slot is defective.

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Member Avatar for ChrisHunter

It might sound daft but do you have the latest drivers installed ?

Member Avatar for wilko1995

well i cant do that because i just built the system and i need that graphics card to work so i can install drivers and even the operating system :/

Member Avatar for ChrisHunter

Ha true, you should still get some sort of display from the onboard graphics card. I've had a Google and some people who have had the same issue and found it could be that the motherboard is broken or isn't compatible with graphics card. It could also be that the card slot is not functioning correctly.

Try taking the new graphics card out and just using the onboard card to see if you get a display or you could use try inserting the card into a different mothorboard and vice-versa to see if it's a compatability issue or if one of them isn't working.

Member Avatar for wilko1995

i have no on board unfortunately, which is why i cant download drivers or anything... :/ ive had a mate look and he said it should be compatible and that he tried it in his and it worked so im lost

Member Avatar for JorgeM

Do you at least get some video during the power on self test, prior to an OS loading screen?

Member Avatar for wilko1995

nope absolutely nothing :(

Member Avatar for ChrisHunter

Do isolated tests on each component. Use your motherboard and everything else from your friends computer to check it isn't the motherboard, if your motherboard has more than 1 G-card slot swop the card to check it's not just the slot. check your monitor with your friends macheine too, sounds obvious but easily over-looked.

Member Avatar for rubberman

Are you sure it is plugged into a compatible slot on your motherboard? What interface does the video card use - pci-x??. Is the slot compatible with that?

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