This is my 1994 IBM Thinkpad 360CE that i bought for five dollars.

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Oct. 3, 2022, 2:24 a.m.

This is my 1994 IBM Thinkpad 360CE that i bought for five dollars. I bought a charger, and it appears to work very well, and the system will show that it is charging, but it will not power on after being on the charger for two hours. It originally began to count memory when i first plugged it in, but then it conked out and will not replicate the same results. The system is currently unresponsive and will occasionally will show the "Power On" light, but does not even attempt to go past that, as the hard drive is not spinning up, nor is the display turning on. I have tried to boot without the battery, and without the aftermarket ram card installed, as well as holding the power switch for 30 seconds without the battery, still nothing. Any assistance will be appreciated.

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Oct. 3, 2022, 2:24 a.m.

It might be missing the BIOS batery. Or maybe the BIOS battery is dead.

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Oct. 3, 2022, 2:24 a.m.

i think you should check Ram and bios battery

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Oct. 3, 2022, 2:24 a.m.

Process of elimination. Put on an anti static wrist band connected to ground and work on a wooden workbench. Disconnect power and battery and remove the ram and hard drive then remove cmos battery. Hold the power button for 1 minute and then leave it alone for 24 hours. Replace cmos battery with new one. Insert battery without ram and hard drive and try to turn it on.

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Oct. 3, 2022, 2:24 a.m.

nice thinkpad! i love these old 360 series! there is a switch when you lift the keyboard, which prevents the machine from turning on. have you tried it with the keyboard down? also the ‘display closed switch’ prevents the machine from starting. it is located right above the keyboard. maybee check if it is stuck.
i hope you get it running 🙂

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Oct. 3, 2022, 2:24 a.m.

check the power supply.

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Oct. 3, 2022, 2:24 a.m.

First off check the memory (be it card it sim on a module) is seated correctly, remove any add on memory modules and try POST again, as these have onboard RAM. Also with these units there is usually a couple of NiMH batteries that can leak and cause various issues, I would look at removing all batteries (main/cmos/standby) then very carefully disassemble the unit, there are only a few screws and the main board will sit as one unit encased in a metal shield, visually check for any signed of leakage (green residue)

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Oct. 3, 2022, 2:24 a.m.

Remove the batter, put back on charger, try again.

I have tried to boot without the battery, still the same results.

check what power supply specs the system is rated for against the power supply you have. I found a 1996 Toshiba Tecra and it wouldn't power on for months until I checked what power supply it needed.

I actually used the original model, new old stock matching 20v charger for the system, not the original to this exact system, but at least it's for that model.

time to start checking internals. Sounds to me like a capacitor might have blown.

Of course try checking bios battery as well




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