Asus M5A99X will not boot with EVGA Geforce GTX 750 Ti

[paulsinclair]

Hi - this is my first post so would really appreciate some advice on my problem.
I have an Asus M5A99X EVO motherboard with a Radeon sapphire 5450. Running windows 7 64 bit.
I have been trying to change the Sapphire to a EVGA Geforce GTX 750 Ti single fan card.
I have updated the motherboard BIOS to the latest version.
I removed the Sapphire card and installed the 750Ti and connected it to an Asus PB287Q monitor by HDMI.
This is the problem:
When I switch on the computer I cannot get past the initial ASUS "welcome" screen where it says "press DEL to enter set up". And nothing happens if I press DEL. On the asus motherboard the Boot device LED continues to show constant red.

This also happens with my Dell monitor.

I have scoured all the on-line advice but have found nothing that helps so far.
Any help would be gratefully received.
Thanks in advance.

 

[alexoiu]

Hi, Try testing the card in different PC, to make sure that it does work.

 

[paulsinclair]

Hi, Try testing the card in different PC, to make sure that it does work.

 

[paulsinclair]

Thanks - I wish I could but, unfortunately, that is not possible where I am at the moment.
I think that the card is probably OK. It is new from Amazon, it is seated OK in the PCI slot, the fan operates and I get input signals at the monitor from both the HDMI and Display Port cables.
But it just will not get me past the BIOS POST screen.

 

[alexoiu]

Is it the same with the card installed in the second slot?

 

[paulsinclair]

Yes, I'm afraid it is!!

 

[alexoiu]

If the board does work with the old 5450. then it could be a card issue. Hard to say without swapping parts.

 

[Calvin7]

Did you use the Windows Control Panel to uninstall the program, "AMD Catalyst Install Manager" before removing the Sapphire card. If not, then reinstall the AMD card and do that.

 

[paulsinclair]

Thanks to those who have responded.

After a few more days of trial and error and following all the advice we have concluded that the card is faulty.


We even tried to use it on a brand new SSD with just basic windows newly installed.


The local computer shop/repair specialist tried it on two of their computers but still could not get into BIOS.

(The MOBO seems Ok since another, similar card does boot up etc)

On it's way back to Amazon now.