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ProStar & Sager Laptop CMOS Battery Replacement
How To Replace Your CMOS Battery & Hard Drive In A Sager, ProStar or MTech Laptop - A Picture Illustrated Repair Guide.

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This repair guide is for anyone who owns a Sager, ProStar or MTech laptop and needs to replace their CMOS battery or 2.5" internal lap top hard drive.

My laptop is an MTech branded portable computer (model number 5600D).

The actual laptop body was manufactured by ProStar which also creates laptop bodies for another laptop manufacturer named Sager.

A replacement battery is part number CR2032.

To the right you'll see my MTech 5600D laptop with a generic laptop body made by ProStar. It has a Pentium 4 2.8ghz desktop processor with 1gb (1024mb) of RAM system memory, an ATI Mobility Radeon 9000 128mb video memory graphics card, a 15" display, mini firewire port, 4 USB 2.0 ports, PCMCIA slot, 10/100 ethernet, 56k modem, and a DVD/CD-RW drive. ProStar-Sager-CMOS-Battery-01
MTech 5600D

Just the back of my Mtech 5600D laptop screen with the generic "Notebook" logo on the back.


I first removed the plastic cover that goes over the palm rest of the laptop and surrounds the touch pad.


I later learned that the step above was unnecessary to access the CR2032 CMOS battery on a ProStar/Sager/Mtech laptop. All you have to do is flip the laptop over upside down, remove the battery, and look for the silver piece of tape that covers the battery.

Your tape might be a different color but it is right below the battery in the center of the empty void where the battery resides in the laptop body.

CMOS Battery Cover

To the right is a better picture of where the battery goes on my Mtech 5600D laptop. At the bottom right of the picture is where the CMOS battery lives under the piece of silver sticky foil film that I removed.

Main Battery Removed



The CMOS battery is wrapped in some blue heat shrink wrapping. Be very careful when you cut this off as to not damage the wires.

Once you remove the shrink wrapping from the CMOS battery you'll see two metal spades for the positive ( + red) and negative ( - black) wires that are soldered on.

Here's where I messed up. I was able to pop off one of the spades, but while trying to pop off the other one, I broke the wire.

If you successfully pop off both metal spade contacts, you can now just attach your new CR2032 battery with solder, shrink wrap or 3M automotive tape (recommended).

CMOS Battery
Blue Shrink Wrapped

Since I also needed to replace my failing Toshiba 60gb hard drive and repair the damaged CMOS battery wire, I had to take my laptop apart some more. In the picture to the right I am removing the 3.5" floppy disk drive.

3.5" Floppy Removal

Once the 3.5" floppy drive was out of the way, you could see the Toshiba 2.5" 60GB 4200rpm laptop hard drive. My drive had been acting up and working erratically, so I replaced it with a Seagate 60gb 5400RPM 8gb cache 2.5" drive.

A 5400RPM laptop drive gives about 50% increase in performance over my old failing 4200 RPM drive.

2.5" Hard Drive Below

At this point, it was 3:30am and I was extremely tired but I still wanted to get my CMOS battery wires ready for the new CR 2032 3V battery that I would be buying the next day. So I started removing all the panels and screw that I could find including the one that covered the processor fans.

Panel Removed
Processor Fans Cover

The picture to the right shows the old Toshiba hard drive removed. If you were careful with your old CMOS battery removal then there is no reason for you to continue to the next two pages unless you're curious about how the rest of your Mtech, ProStar or Sager laptop internals look like.

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