Sunday, March 23, 2014

nope.

i'm not getting any power to the board past a certain point, which is a different problem than i dealt with the last time i did this. see, but it's a bit deceptive, because the externals all take power from the psu. so, the cd spins when you put something in it and the floppy lights up, but neither are able to communicate with the cpu, so the emergency bit doesn't come in.

one of the things that made me understand what's happening a little bit better was plugging an mp3 player into usb. i wasn't expecting power from the board, but i was hoping the power on the key would be enough to get over the hurdle. unfortunately, the key is programmed to turn off on the physical connection, rather than an electronic one. so, no good.

that leaves me with three remaining options:

a) i can try and short the chip, but i think this is unlikely to work.

b) a better idea is to try an externally powered usb connection. and, thinking back, i think that might have been what i did last time, too. i need an external usb drive for two other reasons now so it will be top priority next monday...

c) i can try and use a jumper to replace the bios. i'm going to have to wait until monday for this, too. it's an excuse to get the soldering iron that i probably should have inherited but, for whatever reason, didn't.

so, my gst money on the 5th is basically going to computer repair. that's mildly irritating, but ok. i don't budget that. it's all stuff i should have around, anyways.

i'm not going to short the chip unless i can find a precise set of instructions. see, i don't think the boot block isn't kicking in, i think the board needs power to communicate with the devices. the short might reset the power along with the force, which shouldn't be missing in the first place, but it's not the intent of the process, so i'm a little cautious about messing with it. as it is, i have no keyboard commands, because there's no power. i have no video out because there's no power. yet the fans are all spinning so it's clearly that the bios crashed before that point...

if i can get some power to the board, i think it should go into recovery and flash off of any media it can read. but, i need to be careful with that.

i could do this with a screwdriver, and conceivably have it up in a few hours. in the back of my mind, though, i'm thinking that, if i wait, and the usb trick works, it won't be necessary - and that the jumper is a safer way to force it. it's simplicity v. safety...

if i can find exact instructions, i will do this. if not, i'll wait for at least the external usb.

there's always reading to catch up on.