PowerSDR KE9NS v2.8

" Downloaded the Full and Incremental installers from my website.
Set "Compatibility" of the Full installer to "Window 7"

Installed Full Installer (which also installs the FireWire drivers for PowerSDR). Reboot.
Installed Incremental install.

Set the Compatibility of the PowerSDR (Desktop icon) to "Windows 7" and "run as Admin" (so I can use it to sync the PC clock)

Ran in DEMO mode first (so FireWire is ignored) just to make sure everything was OK
Then powered up The Flex-5000 and launched PowerSDR.

Made a bunch of adjustments to the settings.
Set the Primary Sample Rate to 192khz (because the default is 96khz because some FireWire cards have trouble with 192khz)"

Conclusion: Your system appears to be having trouble handling real-time audio and other tasks. You are likely to experience buffer underruns appearing as drop outs, clicks or pops. One or more DPC routines that belong to a driver running in your system appear to be executing for too long. Also one or more ISR routines that belong to a driver running in your system appear to be executing for too long. One problem may be related to power management, disable CPU throttling settings in Control Panel and BIOS setup. Check for BIOS updates.

py5vb wrote: ↑

Sun Jan 26, 2025 8:49 am

Some radio amateurs are giving up on their FLEX3000/FLEX5000 because they are unable to use it stably on new PCs with Windows 10/11.
I don't know how Darrin manages to use PowerSDR 24/7 without experiencing BSOD with Windows 11. I and many others have not had success, with the most diverse hardware configurations on the desktop, the BSOD appears quite frequently. We used all the tips available on Darrin's website.
If you use Windows 10 in MBR format of SSD/HD partition, it is quite stable regarding BSOD, but sometimes the PowerSDR screen closes abruptly when changing bands or quickly changing the QRG, this rarely happens.
Now, if you want to use PowerSDR with 100% reliability without experiencing absolutely any setbacks, use Windows 7 Ultimate. It's old and some current PCs don't allow you to install Windows 7. I dedicated a 3rd generation Intel i7 PC with 4G of RAM and 128G SSD exclusively for PowerSDR and I'm extremely satisfied and using my FLEX5000A/PowerSDR 2.8.309 all the time.
73, Villas - PY5VB

ke9ns wrote: ↑

Tue Jan 28, 2025 2:59 pm

You can try upping the PFN delay value and see if that helps?


Darrin

ke9ns wrote: ↑

Tue Jan 28, 2025 2:59 pm

You can try upping the PFN delay value and see if that helps?


Darrin

ke9ns wrote: ↑

Tue Jan 28, 2025 2:59 pm

You can try upping the PFN delay value and see if that helps?


Darrin

ke9ns wrote: ↑

Thu Jan 30, 2025 9:45 am

One thing to try would be to disable the Win11 defender real-time protection. See if PowerSDR will run with defender real-time turned off?
And make sure Windows core isolation->memory integrity is OFF.
(Just remember that the real-time defender will turn back on every time you turn your PC OFF/ON)
Otherwise you can try a firewire card with a VIA chip instead of a TI
I have had people swap cards to find one chip works much better than another.
In my past, I have found some motherboards worked only with VIA FireWire chips, and others only with TI chips.

Running PowerSDR on my Lenovo Ryzen laptop, i tried a few different PCIe cards (see image below)
I found 1 card that was causing PFN crashes, and 1 that has no issues.
Under win11 you can no longer use the legacy FireWire drivers because Win11 requires a signed driver (which the version i was able to find is not signed).
IMG_9786.JPG
Darrin