Odd PCIe GPU issue please help

Glenn

Glenn

Glenn

Associate
Joined
12 May 2017
Posts
19
Hi i have a new system with an odd issue

On a cold boot the system does not detect and boot from Pci e GPU and defaults to integrated GPU

If I restart the system from windows the BIOS will pick up the Pci e GPU and boot from it

I have tried two separate card with same results

System info

MSI b250 VDH
Kaby lake G4560
8GB DDR4 2400 ram (1 stick)
SSD 120gb boot drive
HDD 1tb
Sata DVD RW drive
Pci e Wi-Fi card
Sapphire rx480 nitro+ 4gb
500w 80+ Corsair PSU

System was also tested with a R9 200 series
I have also replaced PSU with same results
BIOS fully updated

Thanks for any help
 
Yes after boot from cold i swap HDMI cable in integrated HDMI. on boot I have it sat in the cards HDMI with no joy

When I restart windows I swap cable back into card before the system has a chance to POST

Hope that makes sense
 
Glenn said:
Hope that makes sense
Click to expand...
Yes, perfectly, thanks (just wanted to be sure you weren't connected with 2 leads).

You probably have - but have you tried different lead interfaces - HDMI, DVI, DP if available?

DP in particular can cause cold boot issues - usually more of an Nvidia issue.
 
You seem to have tried all the obvious - BIOS update being the most obvious.

Just to clarify again (as things can easily get lost in translation on forums) - you mean 'cold boot' in the traditional sense - not waking up from sleep?
 
Cold boot power off PC system shut down

Card works when selecting restart option in Windows or pressing hard reset button on PC
 
It sounds like the PCIE slot may not be getting enough juice in the initial boot sequence to register the GPU.

Do you have a spare PSU?

EDIT: scrub that - you changed PSU.
 
Glenn said:
Would that affect both cards tested?
Click to expand...
Yes, if the problem was motherboard related.

Changing PSU pretty much rules out the GFX card as a problem as it vindicates the connections of the card and the integrity of card/PSU.

Reaching now - but have you tried a different memory slot?

ANd are you using a 3rd party cooler?
 
You clearly know what you're doing - and have already gone above and beyond compared to a lot of users.

What does your gut tell you the problem is? When you've tested to the nth degree - you usually have a pretty good idea.

The only other thing i would suggest is re-seating the CPU.
 
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