Saturday, December 12th, 2020

               Still no Digital Mavica parts so today, I dug into the PCs
         and monitors I picked up on Friday. The digital signage unit was
         the most interesting for me, as I haven't messed with any MiniITX
         parts before. It reminds me of a Raspberry Pi, if someone were to
         supersize it and make it x86 compatible. The board is a Zotac
         H67ITX-C-E, which is an LGA1155 model with one 16x PCIe slot, one
         mPCIe slot, two DDR3 slots in dual channel configuration, and six
         SATA 3.0 slots. It came with a single stick of RAM, an i3-2100
         CPU, and an mPCIe WiFi module, which was connected to the
         backplane but was missing antennae. Most interesting was the PSU
         it came with - something called a 'picoPSU,' it's a 24-pin ATX-
         compliant adapter that connects to a 12V AC/DC power brick, and
         it is absolutely tiny, smaller than a deck of cards.
         Unfortunately, I don't have the intended adapter, and after
         looking up the specsheet to check, it looks like all the power
         bricks I have on hand with the correct barrel are all way too
         high powered for it.

               I did a complete teardown so I could find all the part
         numbers for everything, and then built it back up for testing
         with a couple sticks of Corsair XMS3 1600MHz DDR3 and the 400W
         PSU from my LGA775 WinXP machine. I also grabbed a spare SATA DVD
         drive and installed the signage unit's original 2.5" HDD as well
         as the other two SATA HDDs I picked up yesterday, and connected
         it to one of the monitors I got at the same time.

               The signage unit appears to have had Win7 installed when it
         was in use, but now it immediately bluescreens upon boot - this
         is actually a good sign, because it means the HDD is being
         detected and read, so the SATA port is fine and the HDD at least
         has a chance of being okay. I rebooted, and jumped into the BIOS
         settings to change the boot device to the DVD drive, and booted
         up a Linux Mint Maya DVD - this seemed like the easiest version
         for this machine to run that I had on hand, ready to go. I
         checked out the contents of the signage unit's HDD, and it seems
         that immediately upon boot it is trying to reach an external
         server for information as to what to display on the sign, so that
         may be the reason for the blue screen. At any rate, the few files
         that were on the device appeared to be fine, so I reformatted all
         three drives, which went smoothly.

               Having verified the HDDs, the mobo, the CPU, and the monitor
         were all good, I tore everything back down to put into storage
         until I can come up with a good project for this stuff, and moved
         on to the Compaq Presario tower. Normally, I would try to salvage
         the tower case itself, but this one was in really bad shape,
         broken in spots and extremely gross all over. The slide-out
         design of the Presario case kept the worst of it from the inside,
         but everything was still covered in thick layers of dust and
         nicotine.

               Despite this, there were no obvious signs of heat damage and
         the caps all looked to be intact, so I went ahead and gutted the
         machine, minus the breakout board for the front panel LEDs and
         power button, and the PSU. On account of the dust, part numbers
         were not readily available and will have to wait until I clean
         everything up tomorrow, but the mobo is a Socket 7 with three RAM
         slots, four PCI slots, one ISA slot, and USB support through the
         back panel and a breakout board which includes a game/midi port.
         That USB breakout board not-with-standing, nothing on the mobo
         appears to require proprietary parts or connectors, and it seems
         to be of standard ATX dimensions. Hopefully, testing tomorrow
         will go well and I can use some of these parts to scratch the
         retro-build itch I've had lately, haha.

         -Prokyonid