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Vadem Clio Board (Del Msg)
Title: Re: TheIn Reply To
Posted By: Aron HsiaoTitle: Re: The
E-mail: aussersterne@yahoo.comPosted By: John
Date: 11/27/2001 at 19:06:07Date: 11/21/2001

Message:


No I didn't take any pictures (oops!) but the upgrade is very easy to do (i.e. it's all coordination, no technical ability required, really) and looks fairly obvious once you get the memory card in your hand.

The memory card is behind the half-egg-shaped panel held on by a screw on the back of the machine. There are two cards, the RAM in mine was labeled "Vadem Clio DRAM" (the other is the ROM card). If you pull the memory card out (it's a flat PCB that just pops out), you'll find that on one side there are two memory chips (16MB worth) already soldered on and on the other side, there are two blank spaces (i.e. sets of solder pads) for identical chips. That's it -- there's nothing else on the board, just two memory chips on one side and empty solder pads on the under (normally hidden) side.

I just shrugged and soldered chips of what I guessed to be the same size (16x4) into the blank spaces, put the memory card back in, powered on, and the machine saw them without any further ado. Of course, it's delicate soldering work (the chips are surface-mount flat-packs) so if you're not good with a soldering iron or you're very impatient, this may not be for you... There is silkscreening to indicate the "notch" position of the chips. Took me a total of about a half an hour with a 15w soldering iron, some thin 40/60 solder and a couple of sewing needles to manipulate the leads. ;)

Also note that the configuration of the chips must be what the TriPad/Clio is expecting. I used IBM chips, 16x4 60ns EDO (8MB each, used in pairs), I think -- they're IBM 0165165PT3C/60 chips if anyone has an IBM databook around (I don't!) to verify this. I don't know this is what the machines want per se, it was just a guess based on the configuration of the memory card. The upgraded unit is still working well (I've passed it on to someone who is using it every day and has filled much of the additional memory) so there don't seem to be any problems.

Note that you could NOT just pull SDRAM chips from a PC133 stick, for example, even though the pins might line up because they'd be electrically different from what the Clio/TriPad was expecting. They need to be 8MB (16x4) DRAM, not SDRAM. My guess would be that either FPM or EDO would work, but I couldn't promise.

Anyway, if I could, I'd take the module out and photograph it right now for you, but then they'd be emptied and she'd have to reinstall all of her software and data again. :(

P.S. Please don't try this if you're not comfortable with this sort of thing, I won't be responsible for blown Clios/Tripads or lost data either! And be sure to back up before taking out your memory card to look at it, since doing so will reset (i.e. erase) your unit back to factory-new!

Good luck,

Aron





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