3080 on P67

[raven188]

Hi,

I have an old DP67BG intel MOBO.

I installed an RTX 3080 but i can't get the PC to POST.

I know this is an old MOBO and i will be bottlenecked by my CPU.

can someone help me understand why i can't post?

[NTDaws]

You can't post because the board is too old. The RTX 3080 bios only supports boot on UEFI, not CSM. Only way of fixing this is upgrading you're board. 

[raven188]

The board support UEFI.
But my windows install isn't an UEFI.
If i reinstall windows as UEFI will it POST?

[BTGbullseye]

3 hours ago, raven188 said:

I have an old DP67BG intel MOBO.

DDR3, boy you've got some upgrading to do... A 9 year old motherboard... You're going to be CPU bottlenecked something fierce.

 

There are TONS of UEFI related issues with that motherboard. Skip the 3080, get a CPU/motherboard/RAM upgrade and an RX 6800 instead. Not only will you get better performance overall, you'll not have as many compatibility issues trying to get it working.

 

3 hours ago, raven188 said:

But my windows install isn't an UEFI.

That's good for that motherboard, but it reduces performance on newer systems. UEFI installs are superior on motherboards that don't have issues with the UEFI.

[raven188]

I'm planning on buying a new system based on 10900K in a couple of months.
I already own the 3080 and would like the card to work in my system till then.

is it possible?

[dilpickle]

I was able to boot my RTX 3090 on a P8Z68 mobo without issue.

 

It should work on any PCI-E mobo

[raven188]

Z68 boards support the integrated GPU.

My P67 doesn't, this might be why you were able to boot with the 3090.
in the first time did you boot using the on board graphic port?

[BTGbullseye]

17 hours ago, raven188 said:

I'm planning on buying a new system based on 10900K in a couple of months.

Don't lock yourself into it, since Ryzen 5000 may be significantly higher performance for the same overall system cost, but with WAY lower power consumption and heat.

[dilpickle]

8 hours ago, raven188 said:

Z68 boards support the integrated GPU.

My P67 doesn't, this might be why you were able to boot with the 3090.
in the first time did you boot using the on board graphic port?

There is no graphics port on my mobo. I booted from the video card.

[jaslion]

On 10/30/2020 at 6:46 AM, raven188 said:

Hi,

I have an old DP67BG intel MOBO.

I installed an RTX 3080 but i can't get the PC to POST.

I know this is an old MOBO and i will be bottlenecked by my CPU.

can someone help me understand why i can't post?

You may wanna check the settings with the old gpu first. Check if everything is indeed in eufi mode and that the pcie settings are not in legacy.

 

Also what is your psu? Might be as simple as psu can't provide the 3080 with enough power to even attempt a start.

[raven188]

My PSU is antec 750W.

I tried defining the MOBO as UEFI but It didn't worked.

I manage to boot into windows with 2 GPUs the old and the 3080.

but could not install the nvidia drivers.

 

[raven188]

4 hours ago, dilpickle said:

There is no graphics port on my mobo. I booted from the video card.

weird the spec state you have one.

https://ark.intel.com/content/www/us/en/ark/products/52816/intel-z68-express-chipset.html

any way if you say you manage to boot then i might have a faulty GPU :(

 

[dilpickle]

6 hours ago, raven188 said:

weird the spec state you have one.

https://ark.intel.com/content/www/us/en/ark/products/52816/intel-z68-express-chipset.html

any way if you say you manage to boot then i might have a faulty GPU :(

 

That's the general chipset specs. This is the mobo.

 

You said you were able to get into Windows with the 3080 installed? Were the lights on and fans spinning? If so it is probably not faulty and its simply a BIOS issue that is preventing the driver install.