Re: ASRock H81 Pro will not accept more than 2 GPU's (Code 12)

Quote from: q43a0ef061ej on December 03, 2017, 07:33:55 PM

hi, Yoledo

This is a source information about "HackFlags".
https://support.microsoft.com/en-us/help/942959/error-message-when-you-attach-a-pci-express-expansion-chassis-to-a-com

Besides,
You also should care TOLUD(Top Of Lower Usable Dram) problem, when your rig has less main memories.
This problem occur due to insufficient memory address space for accessing PCIE devices.

You can try reduce TOLUD value in BIOS menus ("Auto" does not help you), If there is such item. or
You can try disabling "some unnecessary PCIE devices (like HDMI audio on video cards)" in device manager.

Thanks for.the reply! I'll see if there's an option for tolud values in my bios as I can't recall there being an option for that .I tried the registry edit last night and set it to 600 and now it won't boot into windows at all, just freezes. I'm gonna install a fresh copy of windows and start over