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Started by vinniebizzle | | 6 answers
sapphire r9 290x 4GB no signal
hello all

i have been trying to find out about my r9 290x is fully installed with drivers all installed.

i go to bios and set first display to peg (think i have remember that correctly will double check)

yet wont display (unfortunately my HD port on monitor is broken so using dvi-d port) neither will display.
have tried all three display settings in bios and still no join ( these being onboardvga and PCI)

My Specs are
750watt Apline PSU
Gigabyte 78LMT-USB3 motherboard
AMD FX 6300 CPU
8GB DDR3 corsair vengeance 1600Mhz RAM
1TB Samsung Sata3 Harddrive
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September 11, 2014 11:14:40 PM

was able to but as soon as I disabled on board graphics it won't now. just black screen
September 11, 2014 5:58:16 PM

Most cheap 750W alpine psus only support 38 amps at the 12v rail, thats only 456W, pretty low for a so called 750W psu, thats enough for calling it a bad psu. A good 600W psu should be enough for that system.

Are you able to see the bios with your monitor plugged through the vga port?
September 11, 2014 4:23:40 PM

the psu has 4pin for motherboard and six pin for graphics, also graphics came with 2x4 pin connector to 8pin for graphics. not just 12v rail. did hear good things about psu henze buy. have been looking at getting corsair. not trying to be funny btw just thought I give a little description
September 11, 2014 1:31:32 PM

you know why 750watt Apline PSU are so cheap? they will burn pretty soon especially with that card id recommend atleast something like Evga supernova 750 g2 and i couldnt find any specific info about your psu but i bet it cant put enough A on 12v rails to power up the card.
September 11, 2014 1:27:51 PM

why new psu and what would u recommend
September 11, 2014 1:20:15 PM

Get a new psu immediately if u want to use that 290x

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