[SOLVED] computer wont boot with dual gpu

[crazypicklerick]

i recently build a new ryzen3700x system with msi gaming plus x570 mobo latest bios and was using it with my old gt 1030

today my gtx 1660 arrived i installed new 1660 to pcie 4 x16 slot and put 1030 to the other pcie 3 x16 slot

the system won't boot not even bios just show all fans and led working

ez debug led shows vga led

the system works fine with one gpu in either pcie slot

i even tried other gpu combo gt 1030 + gt 610

none work

mobo supports crossfire so it should support multi gpu ( i just want 2 gpu not sli )

ps i need to pass through a gpu to a virtual machine

 

[King_V]

I don't really know much about multi-GPU setups, but, if it says it supports Crossfire, doesn't that imply it will only support multi-GPU setups with AMD cards?

 

[WildCard999]

Is the 1660 connected to the PSU?

What model PSU do you have?

Which monitors are connected to which GPU's?

 

[ex_bubblehead]

It's likely the PSU can't handle the load. We're not mind readers here, please post your entire hardware list.

 

[King_V]

It would have to be a REALLY weak PSU if the PSU was the cause, no? I mean, the 1660 is a 120W card, and the 1030 is a 30W card. That's not a whole lot of power even added together.

 

[ex_bubblehead]

It would have to be a REALLY weak PSU if the PSU was the cause, no? I mean, the 1660 is a 120W card, and the 1030 is a 30W card. That's not a whole lot of power even added together.

Until we know exactly what he has that's the only plausible explanation. For all we know right now he has some no name 300 Watter that can only put out 175W on the 12V rail (downhill, on a good day, with a tail wind)

 

[King_V]

Until we know exactly what he has that's the only plausible explanation. For all we know right now he has some no name 300 Watter that can only put out 175W on the 12V rail (downhill, on a good day, with a tail wind)

Fair enough.

 

[R4DIO4CT1VE]

might want to poke around in your bios, might find a setting about multi GPU usage in there.

 

[lbox81]

i recently build a new ryzen3700x system with msi gaming plus x570 mobo latest bios and was using it with my old gt 1030

today my gtx 1660 arrived i installed new 1660 to pcie 4 x16 slot and put 1030 to the other pcie 3 x16 slot

the system won't boot not even bios just show all fans and led working

ez debug led shows vga led

the system works fine with one gpu in either pcie slot

i even tried other gpu combo gt 1030 + gt 610

none work

mobo supports crossfire so it should support multi gpu ( i just want 2 gpu not sli )

ps i need to pass through a gpu to a virtual machine

If I am not mistaken .... doesnt crossfire work with AMD only cards and with Nvidia you need an SLI bridge to run multiple GPU, and the card have to be SLI compatible

 

[WildCard999]

Crossfire requires two PCIE slots running at a minimum of x8x4, SLI requires at least x8 in both slots.

However, the OP isn't trying to run CF or SLI so the bandwidth on the slots really doesn't matter but with that board and both of those GPU's it should be x8/x4.

 

[crazypicklerick]

i

Is the 1660 connected to the PSU?

What model PSU do you have?

Which monitors are connected to which GPU's?

and 1660 connected via 8pin pcie power and fans are running on both gpu
cooler master masterwatt 750
both gpu connected to different monitors

 

[crazypicklerick]

might want to poke around in your bios, might find a setting about multi GPU usage in there.

just changed csm mode to uefi in bios and it worked thanks for all ur support even u @King_V