I am getting random re-boots with NI PCI-232/8 and LabWindows CVI 5.0.1.

[lance01]

The system was running fine with an 800Mhz Dell computer. The lease was up and I swapped in a 2.4GHz computer, now I am getting random re-boots. I re-installed all drivers and software from scratch and recompiled the executable. Still no luck. the re-boots are happening between 12 and 24 hours apart.

Thanks for your help.

[Ray K]

- What operating system are your using?
- What version of NI-Serial are you installing?
- If you go into Control Panel»System»Advanced»Startup and Recovery and uncheck automatically reboot, you should get a blue screen instead of rebooting. What does the blue screen say?
- Does your computer automatically go into standby or hibernate? If so, you should try turning those options off.

[lance01]

RayK, Thanks for your response.

Here are my answers;

- What operating system are your using?
Win2k Pro
- What version of NI-Serial are you installing?
1.5
- If you go into Control Panel»System»Advanced»Startup and Recovery and uncheck automatically reboot, you should get a blue screen instead of rebooting. What does the blue screen say?
I will check this. The re-boot happens about 12-24 hours apart, so it might take a while to answer this one.
- Does your computer automatically go into standby or hibernate? If so, you should try turning those options off.
No. I have the PC setup to never hibernate or go into screen saver.

[Ray K]

Check if the same thing happens if
1) you use your native com ports?
2) you just have the computer on and the program is not running?

[lance01]

I think I have it narrowed down. I am using a USB to RS232 adapter (I need 10 serial ports - PC has 1) I removed the USB to RS232 adapter & added a second NI PCI-232/8 to the system. The program has not crashed for 36 hours now. I will let it run over the weekend and check it Monday for a real test.

[Ray K]

Was it a NI USB serial device?

[lance01]

"Was it a NI USB serial device?" No. It was an IOGEAR. I removed it and its driver, added a second NI PCI-232/8 and have had no problems in almost a week.

Thanks for your help.