This is probably the most rewarding part, and pretty much the simplest as well.
Add and tighten a second nut onto the screws supporting the board, keeping in mind the same details as when the board was prepared for burning. Don't forget the screws beneath the mezz card.
Under, on, or near the assembly table is a bag of black tabs that fit into the connectors's sides, two per. All of these need to be filled in. Some people then like to fold the connectors inward toward the connector, which stabilizes them during shipment but also makes more work for the people at CERN who then have to open each of them up as they insert cables. My suggestion is to leave them alone once they're in.
For super-extra-security, the mezz card is screwed down at the cardinal points (into the rivets that sit on the board). This takes some finesse because the screws have to be tightened in a specific pattern to minimize stress on the card as it's fastened.
The screws that go in are constructed by taking a screw from bin #2, loading a washer from bin #3, and finally placing a washer from bin #4 on top of that. This assembly is then tightened using one of the green-topped allen drivers that you'll probably have to hunt around for.
Once the screws are tightened enough that their heads make contact with the mezz card, turn them at most 2 turns at a time, going diametrically from screw to screw. For instance, suppose that the screw holes are numbered so:
The order to follow would be #1: 2 turns, #4: 2 turns, then either #2 or #3: 2 turns, then the screw opposite of that, and repeat until they are all tight.
These screws take more torque to get in than anything else on the board, but it's also happened that a screw was too big for the threading it was supposed to fit into. Trying to get the screw in anyway resulted in stripping it, which isn't that big of a deal, but may damage something. An easier (and better in the long run) way is to simply find another screw that fits better. There are plenty. Really.
The board is now as close to being ready to ship as you have to get it. Make sure that you didn't accidentally leave a clock on it, and that the clock and LED jumpers are still on the board, with the LEDs enabled. Place it in the appropriate box in the corner of the room and that's it! Get some coffee and cookies or something, you deserve it.
/ - Board Testing Home - // - Overview - // - Tests Without the Test Board - // - Tests with the Test Board - // - Pre-Burn Assembly - // - New Tests After Burn-In - // - Final Assembly - /
Matt Matolcsi (madhat@ucla.edu); Last revision: 2003/07/18