Can my system run a 4090

[Rob G 62]

My motherboard is an ASUS Rog Maximus Hero XII WiFi. My CPU is an intel i9-10900. I have 32Gb of 5000 speed memory. My current GPU is an  Nvidia 3090 but I can't seem to find the answer to the question of whether my board supports an Nvidia 4090. I have the slots and case space. I have a high capacity power supply. But does my board support the device? Anyone know or can point to exactly where else to ask that question?

[40track 80]

Issue isn't the PC or the Board it may be the Case length (4090 being 30.4 cm long and upwards). Using the PSU Cables you'll need 4 of them to the ATX 3.0 cable adapter connecter that's supplied with the GPU. Just check whether you have the extra cable/cables. 

Edited February 10, 2023 by 40track

[Funky D 272]

Yes, any modern PC with enough space and power will work with a 4090. With 1000 watts you will be fine. Just be aware that the Founder's Edition 4090 has a power connector that sticks out the side of the card and not the back, which may require more width in the case. Triple check your measurements before ordering a card to ensure if fits in your case.

[turbomax 3,286]

33 minutes ago, Rob G said:

My current GPU is an  Nvidia 3090 but I can't seem to find the answer to the question of whether my board supports an Nvidia 4090.

1) I have the slots and case space.

2) I have a high capacity power supply.

3) But does my board support the device?

yes, since only 1) and 2) are critical. I had a 3090 that I replaced with a 4090, except for space in your pc case I see nothing that needs specific "support for the device", except cash. 😊

[Glenn Fitzpatrick 3,798]

Your motherboard is the older PCIE 3.0 x 16

The RTX4090 is PCIE 4.0 x 16  - but is backwards compatible with older slower PCIE 3.0 x 16 motherboards.

Will it matter for MSFS 2020 ???

I have absolutely no idea.  The 4090 will be faster in a PCIE 4.0 motherboard but how much faster depends on what you are doing.

Here are some videos ...

 

 

 

 

 

Edited February 10, 2023 by Glenn Fitzpatrick

[turbomax 3,286]

3 hours ago, Glenn Fitzpatrick said:

Your motherboard is the older PCIE 3.0 x 16

so is mine, but who cares at 100-150 fps ?

[regis9 4,014]

If you have the case space and the power you’re all good.

[Noel 4,503]

6 hours ago, turbomax said:

so is mine, but who cares at 100-150 fps ?

IanR does 🤣 at least this year.  In two years he'll be clamoring for 200-300 fps.  Why?  Because it will be 2025 by then 😂   

[Wise87 1,281]

I run a 4090FE on a 10900K with no problems. Outstanding performance. 

[Bob Scott 7,721]

Yes, the 4090 is compatible with the Hero XII...the PCIe4.0 and PCIe3.0 pinouts are the same, and the GPU is backwards-compatible to the PCIe3.0 spec.

As others have mentioned, as long as it fits (my 4090 did not fit into a relatively huge Coolermaster HAF-X case) and the power supply is up to the job, it'll work.

One question, though--is your CPU really a 10900 and not a 10900K?  Not sure I'd overmatch a non-overclockable 10900 with a 4090--with the non-K version restricted to using the stock Intel boost clock scheduling (e.g. 3.9 GHz with all cores loaded), I have to wonder if the 10900 can keep the 4090 busy enough to gain much from the upgrade. 

[Rob G 62]

On 2/10/2023 at 8:55 AM, Bob Scott said:

Yes, the 4090 is compatible with the Hero XII...the PCIe4.0 and PCIe3.0 pinouts are the same, and the GPU is backwards-compatible to the PCIe3.0 spec.

As others have mentioned, as long as it fits (my 4090 did not fit into a relatively huge Coolermaster HAF-X case) and the power supply is up to the job, it'll work.

One question, though--is your CPU really a 10900 and not a 10900K?  Not sure I'd overmatch a non-overclockable 10900 with a 4090--with the non-K version restricted to using the stock Intel boost clock scheduling (e.g. 3.9 GHz with all cores loaded), I have to wonder if the 10900 can keep the 4090 busy enough to gain much from the upgrade. 

My mistake, it's a 10900K and it's overclocked to 5.1Ghz on all cores.

[regis9 4,014]

6 hours ago, Rob G said:

My mistake, it's a 10900K and it's overclocked to 5.1Ghz on all cores.

That’s the same CPU I have paired with a 4080, all good here.

Edited February 12, 2023 by regis9