PowerSDR KE9NS v2.8

I am getting BSOD on a new computer with Flex 5000 and fresh install of PowerSDR v2.8.0.324. After starting PSDR if I click stop or something in the menu I get a BSOD. Compatibility is set for windows 7. Computer is set for high performance and priority in PSDR is set to high. I have tried 3 different TI chipset cards and one VIA chipset card. They all do the same thing. I am stumped at this point. Any help appreciated

This is the error I get,
012226-14187-02.dmp 1/22/2026 7:58:46 PM PFN_LIST_CORRUPT 0x0000004e 00000000`0000009a 00000000`004b789d 00000000`00000006 00000000`00000002 ntoskrnl.exe ntoskrnl.exe+4fb240 NT Kernel & System Microsoft® Windows® Operating System Microsoft Corporation 10.0.26100.7623 (WinBuild.160101.0800) x64 ntoskrnl.exe+4fb240 C:\WINDOWS\Minidump\012226-14187-02.dmp 32 15 26100 3,483,758 1/22/2026 7:59:21 PM

Viseo card is a GeForce RTX 5060
OS Name Microsoft Windows 11 Pro
Version 10.0.26200 Build 26200
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name SHACK1
System Manufacturer ASRock
System Model X870E Taichi
System Type x64-based PC
System SKU Default string
Processor AMD Ryzen 9 9950X 16-Core Processor, 4300 Mhz, 16 Core(s), 32 Logical Processor(s)
BIOS Version/Date American Megatrends International, LLC. 4.03, 12/11/2025
SMBIOS Version 3.4
Embedded Controller Version 255.255
BIOS Mode UEFI
BaseBoard Manufacturer ASRock
BaseBoard Product X870E Taichi
BaseBoard Version Default string
Platform Role Desktop
Secure Boot State Off
PCR7 Configuration Elevation Required to View
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "10.0.26100.1"
User Name SHACK1\PC #1 3620
Time Zone Central Standard Time
Installed Physical Memory (RAM) 32.0 GB
Total Physical Memory 31.1 GB
Available Physical Memory 24.6 GB
Total Virtual Memory 36.1 GB
Available Virtual Memory 28.1 GB
Page File Space 5.00 GB
Page File C:\pagefile.sys
Kernel DMA Protection Off
Virtualization-based security Running
Virtualization-based security Required Security Properties Base Virtualization Support
Virtualization-based security Available Security Properties Base Virtualization Support, DMA Protection, UEFI Code Readonly, SMM Security Mitigations 1.0, Mode Based Execution Control
Virtualization-based security Services Configured
Virtualization-based security Services Running
App Control for Business policy Enforced
App Control for Business user mode policy Audit
Automatic Device Encryption Support Elevation Required to View
A hypervisor has been detected. Features required for Hyper-V will not be displayed.

MSI Mode utility,

I think I have found the problem. I have turned of windows defender firewall and it is working now. I may need to add an exclusion

You probably already have, but I have to ask,
Have you tried using the FireWire Legacy driver, as opposed to the default driver?
Have you tried the TI XIO2213B Chip FireWire?

I too had a new Win11 PC and tried everything as well. The only solution was to take a clean hard drive and install Win7 x64 SP1, install PowerSDR. Test it to make sure it runs with no issues, then do in-place upgrades to Win10 and then to Win11. I had to use Legacy driver, but it runs now with the upgraded Win11.

When I put the original Win11 hard drive (that came with the PC) back in, PowerSDR crashes.

It only works with the upgraded hard drive (even though its the exact same FireWire card (TI XIO2213B).

I cannot guarantee this will work for everyone, but it also worked for my main Win11 PC. I had a motherboard die, so I replaced the motherboard, and PowerSDR ran just fine because I used my original Hard drive that was originally upgraded from Win7 to Win10 to Win11 years ago.

Darrin