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BIOS won't boot after installing Gigabyte GeForce RTX 3060 Ti

ShellShock

ShellShock

ShellShock

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Joined
3 Jul 2004
Posts
179
I have just installed a "new" Gigabyte GeForce RTX 3060 Ti GAMING OC PRO 8GB V3 LHR into my Gigabyte Z370-HD3 motherboard, in a PCIEX16 slot (the motherboard only has one). BIOS beeps 5 times on POST, and no display. I plugged a PCI-E 8 pin cable and a PCI-E 6 pin cable into the GPU, from a new Corsair RM1000x PSU (not using a cable splitter).

When I put my old Gigabyte GeForce GTX 1070Ti GPU back into the motherboard (into the same PCIEX16 slot), the BIOS POSTs OK, and Windows boots. This card uses just one PCI-E 8 pin cable (one of which I used on the new card too).

Is there anything else I can try to get the new card working? I don't have access to another PC to try the card in.
 
Do you have an x8 slot? Does the new card work in that? In particular, does the 3060 work in the x8 slot if you have the 1070 in the x16 slot? (Your PSU can power both.)

You might also double-check that the 6 pin cable is plugged in correctly at the PSU end.
 
So my motherboard manual says:

Expansion Slots
Š 1 x PCI Express x16 slot, running at x16 (PCIEX16)
* For optimum performance, if only one PCI Express graphics card is to be installed,
be sure to install it in the PCIEX16 slot.
Š 2 x PCI Express x16 slots, running at x4 (PCIEX4_1, PCIEX4_2) Š 3 x PCI Express x1 slots
(All of the PCI Express slots conform to PCI Express 3.0 standard.)

The Gigabyte RTX 3060 Ti manual says “Card bus: PCI-E 4.0 x 16

Does this mean my motherboard needs to be PCI-E 4 and not 3?
 
Don't worry about that right now; GPUs will work in x1 slots. The objective is to find out if there's life in the card.
 
Right, so we're getting somewhere.

I put my old GTX 1070 Ti into its original PCI-E x 16 slot, using one power cable.

At the same time I put the new RTX 3060 Ti into a a PCI-E x 4 slot that I have never used before, using two power cables.

I booted Windows with the monitor plugged into the GTX 1070. I then plugged the monitor into the RTX 3060 instead, and it is displaying! So it is not dead, which is a big relief.

What next? Swap which slots the cards are in? I am not sure why it would work in the x16 slot when it did not before.
 
try disabling secure and fast boot just to test maybe? Its probs some bios setting somewhere causing it i bet. You could also try saving bios profile then setting to load default setups and give that a whirl. If it doesnt help just restore the profile.
 
I rebooted, disabled Secure Boot in the BIOS, powered off, and then swopped the cards (without unplugging their power cables), so my old GTX 1070 is in the PCI-E x 4 slot and the new RTX 3060 is in the PCI-E x 16 slot. PC won't boot (5 beeps) if the DisplayPort cable is plugged into the RTX 3060, but will if it is plugged into the GTX 1070 (no beeps). With the latter, once Windows has booted, if I take the DP cable out of the GTX 1070 and plug into the RTX 3060 I get no display.

I am out of ideas now.
 
Can you try with another video cable? The reason I ask is that some Displayport cables are wired incorrectly and have an extra live pin and the BIOS boot sequence may be catching this.
 
I have got it working! In my efforts to make sure the new card was seated properly, I had inadvertently pushed it down too far into the PCI-E x 16 slot. I had wondered why the end plate was so difficult to screw in. Anyway, the whole card was slightly misaligned in the slot. Once I had lifted up the other end slightly, the end plate was much better aligned with my case screw holes, and lo and behold, the card worked! That was the problem all along, everything else was a red herring.

Thanks you guys for all your help - this forum is great!
 
ShellShock said:
I have got it working! In my efforts to make sure the new card was seated properly, I had inadvertently pushed it down too far into the PCI-E x 16 slot. I had wondered why the end plate was so difficult to screw in. Anyway, the whole card was slightly misaligned in the slot. Once I had lifted up the other end slightly, the end plate was much better aligned with my case screw holes, and lo and behold, the card worked! That was the problem all along, everything else was a red herring.

Thanks you guys for all your help - this forum is great!
Click to expand...


Occam's Razor strikes again.
 
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