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Computer won't boot when graphics card installed!
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Xaltar View Drop Down
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Joined: 16 May 2015
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Points: 24053 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Xaltar Quote  Post ReplyReply Direct Link To This Post Topic: Computer won't boot when graphics card installed!
    Posted: 01 Aug 2021 at 9:00pm
Thanks for coming back to share your findings

Enjoy the upgrade
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Points: 45 		Post Options Post Options   Thanks (0) Thanks(0)   Quote blazekayn Quote  Post ReplyReply Direct Link To This Post Posted: 01 Aug 2021 at 10:54am
It was the PSU. I changed to another one and it works fine now. I just wanted to add for other people who see this that the issue was intermittent. It seemed like 1/3 of the time the PC would boot and operate normally for hours on end.
Blaze
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I have another PSU I can try. I'll do that today.
Blaze
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This is typically either a sign of a dying PSU or a PSU that isn't powerful enough
for the load being applied to it.

Some PSUs have more than one 12v rail, in essence it means more than one transformer
is used inside the PSU for the 12v outputs. In these cases it is possible to
overload one of the rails and end up with power issues even though the PSU is
seemingly rated for much higher loads. This is why I always recommend a single
rail PSU with at least 50A on the 12v rail for gaming setups. Multi rail PSUs
are typically either used in "silent" applications or workstation/server environments.


So, if you are using a single rail PSU it is either dying or not powerful enough.
If you are using a multi rail PSU you can try changing up the cables connected
to the GPU, swap one of them for another one from a different rail. This will
balance the load and may resolve your issue.
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Points: 45 		Post Options Post Options   Thanks (0) Thanks(0)   Quote blazekayn Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jul 2021 at 9:14am
Was this issue resolved? I seem to be having the same issue. When I connect a graphics card that requires both 8 pin and 6 pin it will not boot. When I use any other card that only requires 8pin it boots every time.

Thanks.
Blaze
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Points: 11 		Post Options Post Options   Thanks (0) Thanks(0)   Quote sk80au Quote  Post ReplyReply Direct Link To This Post Posted: 27 Oct 2020 at 6:01pm
I fixed this issue. Here's how:

My motherboard is ASRock B460m-ITX/AC with old BIOS 1.10
1- plugged in a very old graphics card so that system can boot
2- updated the BIOS from 1.10 to 1.40.
3- Restarted the computer and shut it down then disconnect the power from PSU and inserted the new graphics card. The syatem booted and loaded!
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Points: 8727 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ASRock_TSD Quote  Post ReplyReply Direct Link To This Post Posted: 26 Oct 2020 at 7:51pm
Dear sk80au,

Thanks for the reply.

Could you kindly provide the following information to us?
1. Please check if the power supply has enough power to support the system.
2. BIOS version.
3. CPU model.
4. Graphics card.

With thanks,
ASRock TSD
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It's not the CPU or memory issue. If I connect a graphics card that doesn't require additional 6 or 8pin power then the system starts.
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Dear Sk80au,

Thank you for contacting ASRock.

Regarding your question, when the system will no boot, it can most likely be the CPU and RAM. Kindly refer to the link below and try.
https://www.asrock.com/support/faq.asp?id=490

With thanks,
ASRock TSD
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Points: 11 		Post Options Post Options   Thanks (0) Thanks(0)   Quote sk80au Quote  Post ReplyReply Direct Link To This Post Posted: 25 Oct 2020 at 8:22pm
Hi,

I received my computer parts to build my new gaming PC however when the PC didn't boot at all. CPU fan won't work and there is no POST. I disconnected the graphics card and PC boots. My cpu doesn't have a iGPU so I can't see the BIOS screen without extrnal gpu.

I connected the 8-pin EPS to motherboard + the 8-pin PCIe power to graphics card.

Tested with two different PSU and two graphucs card with no luck!

I assume the Motherboard ( B460m-ITX) has a faulty PCIe slot.

Any ideas?

Cheers.
Sam
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