Check the temperature of the air coming out of the power supply after the system has been running for a few hours. If it is very warm or very low flow rate, shut down and clean out the fans and vents. If this does not cure the overtemp, add an intake and/or exhaust fan. Removing plastic that hampers vent flows, like internal deflectors, will also help.
Most computers can't take as much heat as a person can. At 85 degrees F, you are near or at the limit of many systems. Cooler air will help you too. The hotter it is, the more air must flow through the case to cool the system.
Open the case and blow out the dust, check and see if the fans are running and the vents are clear. Use a cleaning disk and/or tape on the devices that are open to the room air. Dust gets in them too.
Check that the cpu and other IC coolers are firmly seated and there is thermal compound between the chip and the heat sink. Just a thin layer, almost transparent. Too thick is as bad as no thermal compound.
Sometimes you can lose the OS/2 desktop you have spent much time configuring. This recently happened to me when an audio driver crashed the system hard with a trap 8. Not only was I unable to boot, but the desktop was wiped. I'm not sure how it happened, but it happened.
I spent six hours trying to recover the desktop before giving up. In retrospect, this is much too long to try. My friend and partner, VanHorn, says that after an hour, reinstall. He is right. After an hour if you don't have it back, you are not likely to get it.
Six hours later, after the reinstall, I was operational again, but the desktop six days later is still not back to where it was. I had done a lot of customizing.
So here's how to avoid that hassle. When your system is running well, right click on the desktop, open Properties, on the Archive page, enable the 'create archive at each system startup'. After you have rebooted once, turn the option off so future mistakes don't wipe out the good copy. It also saves a few seconds on each boot.
To use the archive, it must be selected during boot. After the main OS/2 screen, a white block and OS/2 displays in the upper left corner. While this shows, press Alt-F1. Since it is only visible for about a second, be prepared.
When the recovery screen displays, the last three archives are listed at the bottom. Select the archive you want by entering the number listed by the one you want.
Warning:If you leave the archive option on, three bad boots in a row will eliminate all your archives. Not the best design IMHO. Because of this, you should make a new archive every month or so, more frequently if you are making a lot of changes.