R9 270Xno display on intel mobos

[mac uy]

Hi!

My PC has been going through a strange problem - the specs are as follows:
a SAPPhIRE Toxic R9 270X
an i5 2400
an ASUS s1155 P8-H77-M LE
on a Windows 8.1

So the problem starts when my supposedly working GPU does not display on any H61 mobo including my very own H77 - oh and B75-**** ASUS and GIGABYTE ones too.

Here are the list of things I've done in the past few weeks:

tried booting with just the onboard graphics to see if the DVI cables are faulty - but it works.
checked the 2x 6pin power is inserted
checked if I properly seated the graphics card
checked whether the mobo is defective or not (tested the pci-e/ram/cpu socket)
checked whether all the aforementioned types mobo's including my H77 is compatible
tested the graphics card on a different system (it worked on an AMD A10-6800k w/ an old mobo w/ DDR2 memory)
used a different PSU
installed the GPU on an x4 slot
disabled iGPU/disabled onboard graphics
checked whether my RAM is working or not (it works)
I just did a reformat


Any advice would be much appreciated!

 

[rounakr94]

Weird!! What is the wattage of your psu?

 

[rounakr94]

Okay from bios under graphics/any related tab make the pcie as first priority(pcie-igp-etc-etc). Since I dont know 'bout your bios layout you have to fiddle a bit

 

[mac uy]

it says 850 watts, okay - i'll try to fiddle.

 

[mac uy]

everything is up and running. gpu fans are spinning, LED flaring - but no display. i noticed that the numlock responds so the system is booting fine - my gpu doesn't display anything .

 

[rounakr94]

Are you using any dvi-vga adapters?

 

[mac uy]

yeah, i am. the only thing i haven't tried is the HDMI - which, unfortunately, my monitor doesn't support(SAMSUNG SyncMaster S20B300)

thanks for the quick reply!

 

[rounakr94]

It must be a bad one. Get one of these: http://www.newegg.com/Product/Product.aspx?Item=N82E16814999201

 

[mac uy]

It must be a bad one. Get one of these: http://www.newegg.com/Product/Product.aspx?Item=N82E16814999201

doesn't work.. i have it packkaged with my R9..

 

[mac uy]

nothing so far, tried turning off the SECURE BOOT on most of the boards - no luck!

 

[mac uy]

nothing, even used a CX500, the R9 doesn't display on the H77-M. Interestingly, other gpu's work on the PCIE so that rules out a bad pcie slot... what else, hmm. basically talking to myself now >.<. tested the graphics card(R9) - it works on the other boards, the AMD chipset ones..

 

[mac uy]

is it true that sandybridge does not support 3.0 cards? does that have anything to do with why my gpu won't work no matter which motherboard i try it on with my R9 ?

 

[mac uy]

never mind, please close thread.