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Wanting to replace CMOS battery on a DTK 286 MB

Fanatik

Experienced Member
Joined
Jan 28, 2018
Messages
223
I want to replace my cmos battery with an external unit, preferably a watch battery or 3 AA's. The battery header has 4 pins and I'm not sure which pins are positive and which are negative. There is also a 3 pin jumper which I believe is for switching from an internal battery to an external. The motherboard is a DTK PTM-1632C with NEAT technology. So far I have swapped the cpu for a 25mhz one, and I was able to find the correct files to use expanded memory through hardware. Hopefully soon I will be playing Wing Commander with expanded memory:D.
 

Chuck(G)

25k Member
Joined
Jan 11, 2007
Messages
39,819
Location
Pacific Northwest, USA
This has been discussed many times in the past. Basically, get your ohmmeter out and see which side of the 4 pin connector is connected to ground--that will be your negative. The other side of the connector will be positive.
 
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