Getting error: Invalid PCI ROM header signature: expecting 0xaa55, got 0xffff

#1

SO I got 8x Sapphire nitro rx 580. Up to 4x, the OS boots alright. But when I add 5th or more, I am getting this erorr. Waited even 2-3 hours, but it did not load to hiveOS. Any insight on this? I got version 5.25 . Tried to upgrade to 5.30 but still waiting it to finish.

#2

I am getting this with 6 x MSI RX580 4GB that have been flashed. Have your cards been BIOS modded? I’m wondering if that is the cause of the issue.

#3

Yes They are bios modded.

#4

I bet that’s what it is then. Mine are modded as well.

#5

Well, I just flipped the bios switch and still having the same error.

#6

I figured it out. You are gonna owe me big :slight_smile:

type below command in the command line
vi /etc/default/grub

find the line with “#GRUB_CMDLINE_LINUX_DEFAULT”. Remove the # sign and save it.
before you can delete the # character, you need to type instert. Then once you removed it, press esc, then type :wq!

add your additional cards and reboot. You are in!

#7

@TurKFX
How do you do this? “add your additional cards”

#8

[quote=“Redzter;1424”]@TurKFX
I figured it out. You are gonna owe me big :slight_smile:

type below command in the command line
vi /etc/default/grub

find the line with “#GRUB_CMDLINE_LINUX_DEFAULT”. Remove the # sign and save it.
before you can delete the # character, you need to type instert. Then once you removed it, press esc, then type :wq!

add your additional cards and reboot. You are in![/quote]

i did this, but not resolved… any other idea?

#9

I had this problem today while troubleshooting another problem. Turned out that I had connected a monitor to the VGA port on the mainboard which in turn caused the issue. After multiple hours of searching the Internet and re-flashing the HDD I found that it all worked properly once I disconnected that monitor. This may not fix it for everyone but wanted to share in case it helps someone.

#10

Hello, this error, “0xaa55, got 0xffff)” is indeed due to the BIOS being modded as far as I know, my cards all throw it but it does not cause any issues, if I am not mistaken it is the GPU BIOS signature that has been changed due to the BIOS modding, as mentioned before ALL my rigs throw this and it causes 0 issues, just my input