This evening I was doing some work at school, and I noticed that they were throwing out an HP TC1100 Tablet PC, one of the computers I considered getting but instead ended up with a Toshiba m205. I of course grabbed it, although a tech warned me that it had graphics issues. I brought it home, found it some RAM, plugged in my current HP's 18.5V, 3.5A, positive-tip power supply, and it did indeed have graphics glitches. I disassembled it, nothing obviously broken, put it back together, same thing. This time, I did a full and complete disassembly, with the help of the service manual:
http://bizsupport1.austin.hp.com/bc/docs/support/SupportManual/c00681631/c00681631.pdf
I now have the motherboard laid completely bare, including the heatsink/fan combo, all of the tape and labels (as well as I could peel them off), and every cable and wire. The plastic PCMCIA bracket, RAM slots, and ports are still there, as are the soldered-on chipset, graphics coprocessor, and processor. Tomorrow morning, I'm going to head to school and see about reflowing the motherboard: yes, baking my motherboard until golden-brown (well, not literally). From my research, conventional ovens take 385F for about 9 minutes for a good reflow, so that might be what I try if the school route fails. I'll be sure to give you guys the full details!
http://bizsupport1.austin.hp.com/bc/docs/support/SupportManual/c00681631/c00681631.pdf
I now have the motherboard laid completely bare, including the heatsink/fan combo, all of the tape and labels (as well as I could peel them off), and every cable and wire. The plastic PCMCIA bracket, RAM slots, and ports are still there, as are the soldered-on chipset, graphics coprocessor, and processor. Tomorrow morning, I'm going to head to school and see about reflowing the motherboard: yes, baking my motherboard until golden-brown (well, not literally). From my research, conventional ovens take 385F for about 9 minutes for a good reflow, so that might be what I try if the school route fails. I'll be sure to give you guys the full details!