New build - no signal to iGPU or 3080 Ti

[saadiq7]

Hi all, hope someone can help with my issue...

I built my pc a few days ago and since I've tried to boot, it doesn't post and there's no signal to my monitor via the iGPU or the 3080 Ti.

Specs
MB: Asus Z690 Maximus hero
RAM: 128gb (4x32gb) g.skill Trident 5600mhz ddr5
2x Samsung nmve 1tb 980 pro
Cpu: i9-12900
Gpu: Gigabyte 3080 Ti Eagle oc
Cooler: Gigabyte waterforce 360
Case: CM TD500 mesh
Psu: Corsair HX1000

Firstly, I have all the power connectors plugged in, the 3080 Ti 2x8pins connected, the 2x8pin cpu connectors plugged in, the 24pin MB connector and the additional pcie 6pin next door connected...

From the first time I tried to turn the pc on, there's no signal to the iGPU or the 3080 Ti. I used another monitor with a hdmi connection and still no luck. I checked that everything is connected and reseated correctly and still nothing. Note, the ARGB fans, the rog logo and gpu rgb are on, after a few minutes, the aio lights & fans go on (I think it's delayed as its connected to the USB header on MB.)

While I waited the 4th time with other monitor plugged in, I plug the mouse and keyboard USB connector out of the pc & I get a signal on other monitor, from the 3080 Ti, pc booted up into bios. I then plugged the hdmi into my original monitor and the signal is still there. I take the opportunity to update the bios, when it's successful and reboots, again no signal to iGPU or 3080 Ti.

Now remember the mouse & keyboard connector, all the other things I try, I have the USB connector plugged out...

I read somewhere that it might be the ram. So even tho when I was in the bios and saw all the ram showing up (didn't read at the correct speed as I didn't change the xmp profile yet). I re moved 2 sticks of ram in the secondary slots and tried to boot again, still no signal.

I then thought maybe it could be that the power supply isn't sending enough power to the gpu, so I add another pcie cable and plug 2 seperate cables to the 2x8pin connectors. Boot and no signal on both gpu's.

I then thought maybe it could be the pcie slot. I have the 3080 plugged into the top most slot pcie 5.0 but they are backwards compatible. I moved it to the second pcie 5.0 slot and boot and still no signal to monitor. One thing to note is with the gpu in the middle slot, the gpu fans went on briefly when trying to boot, but still no signal. The bottom slot is a pcie 4.0 but there isn't enough space to connect as the gpu card is too thick, so even if I put the gpu to the right bottom of the case to the psu enclosure, the connectors can't fit.

One more time, I reset the cmos and see what happens... Still no post and no signal to the monitor via iGPU or 3080 Ti.

I tried using a shorter hdmi cable, the one I have is a 3m which is pretty short, I changed it out for a 1m cable... Still no post and no signal to the monitor via iGPU or 3080 Ti.

I plug the new psu into the older system and it doesn't power on. Just fans power up and leds, no boot. I did plug into the basic components to boot. So now I think it might just be the psu.

Then I plugged another working power supply into the new system &... Still no post and no signal to the monitor via iGPU or 3080 Ti. So I rule out the psu issue.

I inserted another working graphics card into the pc &...Still no post and no signal to the monitor via iGPU or 3080 Ti.

The last 2 items that it could possibly be is the motherboard or the cpu.

I'm all out of options. I think my motherboard is bad, but not sure how to test. I thought maybe it could be the gpu, but why is the iGPU also not giving a signal, that's weird.

These motherboard's were plagued with a bad connector on the motherboard, causing failure and fires etc, but I've checked my Mb serial numbers and it doesn't fall in those units, I also made sure the polarity position of the culprit connector and its in the correct orientation. But it could still be the motherboard that's bad.

Im not sure what to make of the q-codes, as everytime I try to boot and it cycles thru different codes, it ends up on a different code. I've tried to check the codes, but I can't make sense of it all. Must I wait for the q-code thingy to cycle thru different numbers till it finally stops somewhere?

I hope someone is able to help me? I'm out of options at this point.

[cekeu]

saadiq7 wrote:
This morning again it started up and at first it loaded into bios via iGPU but not the hdmi on the 3080ti or the dp.

Then after a few restarts it started working on the dp of the 3080ti. Then the moment I think it's coming right, it has no signal to iGPU & 3080ti.

Can it be an unstable bios? On the manufacturers website, there's an option to download the very first bios, do you think I should try that? Can one go back to the first bios?

You can try flashing the bios back to the first version or a previous bios compatible with Windows 11
Is your atx power supply sufficient for your component system?
For the 3080 Ti You need two separate pci-e 8 pin cables and not a single split cable
(by the way you connect either the 3080 ti card or the igpu but not both at the same time) I heard that if a graphics card is installed the igpu remains deactivated.

[cekeu]

You can try flashing the bios back to the first version or a previous bios compatible with Windows 11
Is your atx power supply sufficient for your component system?
For the 3080 Ti You need two separate pci-e 8-pin cables and not the classic cable that splits at the end with two connectors. (Y-cable)
(by the way you connect either the 3080 ti card or the igpu but not both at the same time) I heard that if a graphics card is installed the igpu remains deactivated.

[saadiq7]

cekeu wrote:
Try flashing the bios back to the first version or a previous bios compatible with Windows 11
Is your atx power supply sufficient for your component system?
(by the way you connect either the 3080 ti card or the igpu but not both at the same time) I heard that if a graphics card is installed the igpu remains deactivated.

I'm going to try to flashback to the first version, hopefully it's much more stable. If not I'll try all of them till I get to the latest one again, just to rule out that it's not the bios. I have a feeling that it has something to do with the motherboard.

The power supply is definitely sufficient, its the hx1000 (specs of the build in the first post).

I don't connect the gpu's at the same time, it's either in the iGPU hdmi port, then the hdmi 3080ti port, then lastly I try the 3080ti dp port. Also I try all the ports on the 3080ti.

For now, I'll try the bios versions from the first & see what happens. Keep you guys posted...

[saadiq7]

Today I tried getting my pc to start.

NO display to Intel gpu & 3080 Ti. I got a signal one time, then when restarting it had no display again.

I'll try again tomorrow or Sunday when I have some time.

This no display, the rog splash screen with F2 or Del doesn't even load, doesn't this seem like the motherboard? How could I confirm it is the motherboard?

[xeromist]

The only way to know for sure would be to swap the motherboard. Otherwise you can swap literally everything else.

You mentioned your retailer has a repair division. I would ask them if they have a compatible motherboard to help you test.