• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

New GPU - No signal

nprim

nprim

nprim

Associate
Joined
5 Jun 2025
Posts
8
Location
Carrickfergus
Hey there.

I am wondering if anybody could possibly help.
I bought a new GPU for first time in 8 yrs and tried unsuccessfully to install into PC.

The new GPU is a Sapphire Radeon RX 9070 XT Nitro +.

The installation went ok after a little bit of work, and figuring things out.
I removed all previous GPU drivers before hand and entered safe mode before the removal of old and then install of new.

However once turning on, all lights came on, on the motherboard and the GPU, no signal was shown on the monitor.
I did a little digging and found that there is a possibility of the HDMI cable not being fully connected with the GPU port, so I loosened the GPD a little to create enough room so that I think it was fully connected, but still no effect on the "No signal" on the screen.

There is also the possibility of the monitor being too old or maybe the HDMI cable not being up to spec, or something else.

Hoping I can be advised on what to do next.

There is an unintended benefit to all this, I was able to give the case a good dusting for first time in a few years. lol.

I have reinstalled old GPU and all seems to be running with no issues.

Below are the specs for the machine.

Motherboard : Z370 Aorus Ultra gaming Wifi
CPU : I7 - 8700K @ 3.7Ghz
Old GPU : Nvidia Geforce GTX 1070 Ti
Ram: Team Group Vulcan T-Force 16GB (2x8GB) DDR4
PSU : Kolink Continuum 1050W 80 Plus Platinum Modular
Monitor : Acer Predator GN246HLBBID 24 1920x1080 TN 144Hz

Many Thanks
Nathan
 
It's entirely probable that the new GPU is DOA - infant mortality is a thing in electronics - but let's cover the basics first.

Have you done a BIOS update? Did you try another port on the new GPU?

Is the GPU powered on one PCIe cable pig-tailed or two separate cables? The latter is preferable.
 
Quartz said:
It's entirely probable that the new GPU is DOA - infant mortality is a thing in electronics - but let's cover the basics first.

Have you done a BIOS update? Did you try another port on the new GPU?

Is the GPU powered on one PCIe cable pig-tailed or two separate cables? The latter is preferable.
Click to expand...
Hi.
Thanks for your reply.

I should have also mentioned, that I'm a bit of a rookie with pc builds. :cry:
The machine was a prebuild from over clockers, just a terrific job, 8 years ago.
Officially my 2nd own PC, the first I built myself maybe 10 years before that.

Nope, no Bios update or didn't try another port.

The old GPU has a 8 + 6 with 2 spare, pigtailed I think.
The new one needs triple 8, so i used the above and then another 8 - 8 connection from the PSU.
Hope that makes some sort of sense :cry:
 
Wondering if the motherboard/bios can't support it?
Only had that happen once
And was quite a few years ago
Took me quite a while to figure it out
Gpu support isn't something you normally consider
From a motherboard when it has the pcie slot that takes the gpu

You got any friends or family
You could test the gpu in their PC?
Or a local independent pc shop who could do a
Quick test to see if it boots up?
One that will do it cheaply or if you're lucky even free
Since its a very quick test of basic functionality
 
There have been quite a few instances of X470/X570 boards not being compatible with the latest cards so I wonder if that is the case here? You are going to have to update the motherboard bios to see if that will make it work. If not trying the card in another pc would be a good idea.
 
nprim said:
Ok so Link speed set to max GEN3.

Gonna have 1 more go at installation. :cry:

Thanks for all the above advice.
Really appreciate it.
Click to expand...
No problem

As a new member you're only allowed
Either 10 or 15 posts per 24 hours
Forgot which
If its still same as it used to be
Not a lot if got quite a complex issue
Don't know if its still the same now
But used to be if you use the reply button
It doesn't count towards your post count
Otherwise you may get cut off for the day before solving
The problem
 
You must log in or register to reply here.
Back
Top Bottom