Part of the problem with installing drivers in Windows 8/8.1 is the
new hybrid sleep (fast boot) capability. In essence, Win 8/8.1 closes
any running applications then saves the operating system and hardware
drivers image to disk just like hibernate. When rebooting that old
image is reloaded complete with all the drivers that were previously
installed - even if the hardware changed. If the previous image had
drivers for hardware that was no longer present or drivers that were
to be replaced, that conflict can cause page faults and other (BSOD)
errors.
When installing new hardware the best thing one can do is to hold the
shift key while shutting down Windows 8/8.1 before making any hardware
change, install any new drivers, then restart Windows 8/8.1 before
trying to run anything new. Shift-shutdown and restart both force a
complete (fresh) reload of the operating system and all drivers.
Another little known tip ... when installing new USB devices, always
disconnect any previously connected devices and restart before
connecting a new USB device for the first time. This allows drivers
for the new device to be installed with a "clean slate" and prevents
older drivers and drivers from hardware no longer present from
interfering with the installation of a new device.
73,
... Joe, W4TV
On 4/24/2014 11:36 PM, Don Hill AA5AU wrote:
Thanks to everyone who sent information on the serial cards they were using in
their Windows 8 computers. I purchased a new Dell
3847 desktop PC with Windows 8.1 and it arrived this past Monday.
On the serial card, I decided to go with a suggestion from Joe, W4TV, on the
Syba model SD-PEX15011 for three reasons. One is that
Joe is usually good about suggesting hardware (I purchased two USB sound cards
he recommended and they work great), secondly because
this particular 4-port board is the sister of the 4-port board I have been
using in my XP Pro machine for many years, and thirdly
because of the price. It is cheaper than any of the others. Although the manufacturer is
listed as Syba, it says "Best Connectivity"
on the box.
I purchased the SD-PEX15011 from Newegg on Monday and it arrived today.
http://www.newegg.com/Product/Product.aspx?Item=N82E16815124075
I installed the board this evening using the instructions that came with the
board. I'm sorry to report that nothing worked as it
was suppose to but in the end, for reasons I can't explain, all four ports
magically started working.
The instructions said to install the board, turn on the computer and Windows
would recognize it - it did not. Windows did not like
the board being installed and kept giving an error that it had to shut down and restart
because "page fault in non-paged area".
I decided to remove the board and install the driver on the disk that came with
the board, then re-install the board. There were
Windows 8 drivers on the disk. Windows still did not like the board being installed. On
occasion it would give me the "page fault"
error and restart, but I did notice that COM 1 was showing up and the other
ports were also showing in Device Manager but Windows
didn't know what they were. I tried re-installing the driver but it wasn't
working. I went online to find updated drivers. The
drivers on the Syba website were actually older than the ones on the disk and I
didn't see any for Windows 8. I did find a set of
instructions for Windows 7 that suggested to "Disable Driver Signature
Enforcement". I finally found instructions on how to do this
in Windows 8.1 because the instructions for "Disable Driver Signature
Enforcement" on Windows 8 are totally different. I am finding
out that Windows 8.1 is different than Window 8 in many ways.
Rebooting after "Disable Driver Signature Enforcement" helped keep the PC from
wanting to restart. I re-installed the drivers as
Administrator but the ports did not show up in Device Manager. So I switched
over to my non-Administrator account for no good reason
other than to check the Device Manager; lo and behold, all four ports showed up
in Device Manager.
I went ahead and tested all four ports and they all work for radio control and
FSK/PTT. I restarted the computer several times and
have not gotten the "page fault in non-paged area" error and everything seems
very stable.
I don't know if I would recommend this board to anyone other than to someone
who has time to play with it to get it to work. I think
it's going to be OK, but if you want to spend a little more money, maybe
something like a StarTech would install better. I don't
know.
I will give it the smoke test in SPDX RTTY this weekend. I'm just not a fan of
USB-to-serial adapters for FSK. Especially with the
BARTG 75 coming up on Sunday. Definitely need a legacy COM port for 75 baud on
a homebrew transistor FSK interface!
73, Don AA5AU
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