02+ 2GB Memory Upgrade - A Better Attempt

Second Generation OQO devices including the production 02 and prototype 02+ models.
User avatar
warhol
Site Admin
Posts: 17
Joined: Wed Mar 30, 2022 12:31 am

02+ 2GB Memory Upgrade - A Better Attempt

Post by warhol »

Full album with a few extra pictures located here: https://imgur.com/a/pGDEM6D.



Was asked by a community member to attempt a 2GB upgrade on this 1.86ghz 02+ unit (most of the early EVT models were built with 1GB modules to keep costs down during prototyping). I made it very clear how much of a hack job my first attempt was, but they wanted to take the risk anyway.

Image

Early prototype with no serial number sticker:

Image

Both the fan ribbon cable and the SSD ribbon cable were not original to the 02+, being retrofitted to fit. Also first time seeing a 128GB RunCore SSD, that was cool.

Image

Red OEM 1GB module. Neat color, and different than the original 1GB module in my 02+ and size comparison to the 2GB 214 pin MicroDIMM for the HTC Shift.

Image

The protective metal cover/shield on this unit was not soldered into place over the chipset/CPU, unlike mine. This made the needed modifications infinitely easier than the first go-round, having to Dremel the metal in-place without damaging anything.

Image

Image

Heatsink and metal cover removed:

Image

Areas to be removed with Dremel:

Image

Corner of MicroDimm radiused gently with 400 grit sandpaper:

Image

This tab will also need to be removed for proper fitment:

Image

Easy fix with the Dremel cutting wheel:

Image

Wrapped MicroDIMM in a few layers of protective kapton tape:

Image

Cleaned the old thermal paste of the 1.86ghz Atom, and applied new MX-4.

Image

Perfect fit with no modifications needed to the heat pipe.

Image

Image

The metal area covered with the piece of Kapton tape on the chassis had to be filed slightly to accommodate the MicroDIMM. Straightforward enough.

Image

No clearance issues for the display unlike the first attempt at this with my own 02+.

Image

Full pass on Memtest86 burn-in:

Image