>Going back to the old thread... > ><http://groups.google.com/group/atv-bootloader/browse_thread/thread/ >5aea8dc868d948bc#> > >...since Google won't let me add a new post to older threads for some >reason. > >I did as Scott suggested and as I suggested. I picked up an non- >working ATV on Ebay (Scott's suggestion) and I finally found some >spare cycles to examine those via patterns opposite the DRAM chips (my >suggestion). > >Unfortunately, the via patterns do not correspond one-to-one to the >DRAM chips. They're offset to the side and jogged differently and >incomplete so there's really no way to know which via corresponds to >which DRAM ball/pin. Oh well. It looks like the only way I'm going >to know if A13 and BA2 are present and connected is to do actual >surgery. > >For those who don't want to look at the old thread, this investigation >is in support of whether the 512 Mb memory chips on the motherboard >can be replaced with 1 Gb or 2 Gb chips. This would increase the >DRAM from 256 MB to 512 MB or 1 GB. Don't get too excited. The 1 Gb >chips (four needed) are still $20 each. And the soldering is >delicate delicate. > >Being a silly person, I didn't plug this thing in to test it when I >got it. I let it sit around for months and then disassembled it to >look at the DRAM. So I don't actually know what problem the seller >had with it. > >I bought two units on Ebay and my hope for both, from the item >descriptions was that they tried to hack the things, munged up the >hard drives and didn't know how to recover them. > >However, when I went to reassemble this one, I found a tiny component >loose under where the power supply goes. After much searching, I >determined that it is a differential inductor used to reduce EMI at >the Enet port. So the ethernet jack probably doesn't work. > >I don't know for a certainty that this was already loose, but the >motherboard was screwed down until I started working on it, and I >wasn't rough on it, and the component is from the protected side of >the board, so I suspect this was loose when I got it. > >There is also a tiny six contact component loose/missing on the wifi >card, so at a guess, this ATV had no communications working. > >On the bright side, now that I know, it will be pretty trivial to >replace the inductor. The wifi card isn't fixable because I can't >identify the complex loose component. But I don't use wifi at my >house anyway.
cool, if you want to play an interesting game, get a mini-pci-e to pci-e adapter and a 1X nivida 840 for it, boot linux and run vdpau. full 1080p hardware decode :) --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to atv-bootloader@googlegroups.com For more options, visit this group at http://groups.google.com/group/atv-bootloader?hl=en -~----------~----~----~----~------~----~------~--~---
