Fe_man2000
Prominent Member
Hi,
I am having a strange issue with my fairly new PC parts I have had since Christmas. I bought a new GPU - a powercolour 5700 XT and a new PSU to drive it a Corsair RM750x 750 watt. Everything has a been great for most of Janurary then I started to get an issue where I would turn on the computer and it would boot but there would be no signal to the monitor at all but the PC would appear to boot up. I discovered that windows is booting but the GPU is not being detected and the PC is defaulting back to the GPU on the motherboard - connecting a hdmi cable to the onboard socket that gives me access to the PC in this state and looking in device manager show the GPU is not showing.
if I reboot it will usually not fix the issue and just start up in the same state but if I shutdown and remove the power lead and then plug it back it when I reboot its all back and working , GPU showing etc. I have swopped the power lead just in case - no change.
Also it doesnt do this failure to see the GPU on boot every time, around 50% I think and once it was up and running I could use it all day long no problem including gaming.
But... Now today and yesterday it has done this while I am using the PC as awell,the monitor loses signal and will suddenly go black and a few seconds later it looks like it might be rebooting and then it comes up with no GPU detected.
I dont think this is driver related as when it goes wrong at boot I cannot even see the boot sequence or enter the bios its send no signal though the GPU, its like the card is missing.
I dont think this is thermal as its from a cold boot and everything feels OK inside the PC heat wise.
Also the GPU has some RGB lighting and this is always lite so some power is getting to the card.
So I am trying to work out how I can test if this is PSU or GPU issue or motherboard I suppose. What would introduce an intermittent issue of GPU dissappearing at boot and sometime during use.
NOTE I am using a dedicated 8 pin PCIE connections from the PSU to each one the two connections on the GPU, rather than using one cable with two connectors on the end, if that makes sense.
I have another older GPU AMD 480 I can test with which uses 1x8 pin and 1x6 pin PCIE , but I dont have another PSU that has enough PCIE connections to swop that out and test the 5700xt (8 +8).
Cheers for any advice.
I am having a strange issue with my fairly new PC parts I have had since Christmas. I bought a new GPU - a powercolour 5700 XT and a new PSU to drive it a Corsair RM750x 750 watt. Everything has a been great for most of Janurary then I started to get an issue where I would turn on the computer and it would boot but there would be no signal to the monitor at all but the PC would appear to boot up. I discovered that windows is booting but the GPU is not being detected and the PC is defaulting back to the GPU on the motherboard - connecting a hdmi cable to the onboard socket that gives me access to the PC in this state and looking in device manager show the GPU is not showing.
if I reboot it will usually not fix the issue and just start up in the same state but if I shutdown and remove the power lead and then plug it back it when I reboot its all back and working , GPU showing etc. I have swopped the power lead just in case - no change.
Also it doesnt do this failure to see the GPU on boot every time, around 50% I think and once it was up and running I could use it all day long no problem including gaming.
But... Now today and yesterday it has done this while I am using the PC as awell,the monitor loses signal and will suddenly go black and a few seconds later it looks like it might be rebooting and then it comes up with no GPU detected.
I dont think this is driver related as when it goes wrong at boot I cannot even see the boot sequence or enter the bios its send no signal though the GPU, its like the card is missing.
I dont think this is thermal as its from a cold boot and everything feels OK inside the PC heat wise.
Also the GPU has some RGB lighting and this is always lite so some power is getting to the card.
So I am trying to work out how I can test if this is PSU or GPU issue or motherboard I suppose. What would introduce an intermittent issue of GPU dissappearing at boot and sometime during use.
NOTE I am using a dedicated 8 pin PCIE connections from the PSU to each one the two connections on the GPU, rather than using one cable with two connectors on the end, if that makes sense.
I have another older GPU AMD 480 I can test with which uses 1x8 pin and 1x6 pin PCIE , but I dont have another PSU that has enough PCIE connections to swop that out and test the 5700xt (8 +8).
Cheers for any advice.
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