power supply question

MUFCFAN · 24 Jun 2014 at 18:02

I have recently purchased a Gigabyte Radeon R9 280X Rev2.0 WindForce 3X OC 3072MB from the clearance line section for £169.00.
I installed the new card and switched my pc on only to find it doesnt boot up, iam unsure if my current power supply is up to the task, (corsair cx750m). pc starts all fans are turning but doesnt boot. I put my current graphics card back in (gtx 660ti 2gb and boots no problem. my spec.
i5 3750k stock
8gb ram
dvd + bluray
sound blaster z
5 x sata 3 hdd 2 in raid 0
cooler master closed loop cpu cooler.
gtx 660 ti 2gb.
6x 120mm fans 1 x 140mm
various usb Peripherals.

Thanks for reading any help would be appreciated.

peter.

tbyeah · 24 Jun 2014 at 18:05

Sounds like a faulty card then, I'd return it.

Ploppy2k3 · 24 Jun 2014 at 18:06

750W is well enough for that setup.

sounds like the 8pin/6pin PCIe isnt connected or working right.

MUFCFAN · 24 Jun 2014 at 18:13

Thanks for the quick reply. I will try it again if no luck will send it back.

Thank you.

lee32uk · 24 Jun 2014 at 18:29

Have you tried a different pci-e slot ? Just to see if it boots up.

Also is the bios up to date on the board ?

pastymuncher · 24 Jun 2014 at 19:00

If it's a Gigabyte board make sure you have the latest bios. For some reason their boards, especially the Z77X series, can be very picky with graphics cards. Usually the bios update sorts it out.

Welcome to the forums by the way.

MUFCFAN · 24 Jun 2014 at 19:20

I tried again and still no luck, funny you say about the Z77X motherboards, i have a Z77X-D3H. How would i update bios if i cant boot up?

pastymuncher · 24 Jun 2014 at 19:22

Take the card out and connect to the onboard gpu. If you get no display do a cmos reset and it should detect the onboard.

MUFCFAN · 24 Jun 2014 at 19:39

I went through the process of putting old card back in, will i have to uninstall drivers for that card before i do this.

MUFCFAN · 24 Jun 2014 at 20:21

Sorry ignore post thought you meant update bios for vga card. Doh. Will do mobo bios tomoz.

Thanks for your help.

MUFCFAN · 25 Jun 2014 at 19:20

Thank you for the bios update idea, worked. All running great.

Thank you..

lee32uk · 25 Jun 2014 at 19:25

Glad you got it working

pastymuncher · 25 Jun 2014 at 19:31

Glad it worked. That particular board has always had a problem with new cards if not on the latest bios. Don't know why, but a flash is usually the solution.

Akagi · 25 Jun 2014 at 19:35

Happened with a build I did with that motherboard as well, but with a sound card.

Useless bit of kit.

lee32uk · 25 Jun 2014 at 20:41

I have a 7870XT with the same board, and never had a problem

I guess it is the luck of the draw.

Ploppy2k3 · 25 Jun 2014 at 20:46

this is one of those "really!" threads. i wouldn't have guessed this as the answer in a million years