On Thursday, November 15, 2012 7:32:30 AM UTC+8, trag wrote: > > > > On Wednesday, November 14, 2012 11:30:01 AM UTC-6, willx wrote: >> >> I have a atv1 with a dead enternet port and I can do the BGA works(infact >> I have replaced the IO chip of it,but enternet still not working) >> but I know nothing about RAM chips,either SPD,if anyone who would love to >> provide some help,I'll replace the RAM chips for test~ >> sorry for my bad English~ >> > > There is a small filter on the ATV1 board between the RTL8100 chip and the > ethernet jack. Internally, the filter is a couple of inductors and (if I > remember correctly) maybe a cross connecting capacitor. Anyway, check > continuity on that filter. Or just check that it is present. On one of my > ATVs that chip popped right off of the board, and so the ethernet chip was > no longer connected to the ethernet jack. > > As far as the memory expansion, since posting that idea a few years ago, > I've been so backed up on projects I've never managed to do anything with > it. Heck, I haven't even managed to set up a MythTV box using ATV > clients. Sigh. Still on the to-do list. I have managed to coach several > little league baseball teams. :-) > > If you're interested in giving it a try, these chips should do the trick: > < > http://www.ebay.com/itm/MT47H64M16HR-37EIT-E-Manu-MICRON-Encapsulation-BGA-1Gb-DDR2-SDRAM-Component-/110886795710?pt=LH_DefaultDomain_0&hash=item19d15e39be > > > > Or these: > < > https://avnetexpress.avnet.com/store/em/EMController/DRAM-Chip/Micron/MT47H128M16RT-25E-C/_/R-13459725/A-13459725/An-0?action=part&catalogId=500201&langId=-1&storeId=500201&listIndex=-1&page=1&rank=2 > > > > The former are twice the capacity of the ATV1's current memory. The > latter are four times the capacity of the ATV1's current memory. Four > chips are required. > > However, I still don't know whether Apple included the extra bank and > address lines on the circuit board. > > Assuming that the required address lines are present, after the memory is > installed, it may still be necessary to make some change to the ATV1's > firmware to get it to recognize the extra memory. I don't know if it > auto-detects the size of the RAM, or is programmed for the manufactured > size. > > Jeff Walther > > I think it's not a jack connection problem,my ATV will show the RTL enternet card when I type lspci,but if i type ifconfig,there is no eth0. I have 3 ATV, the other two will show eth0 even if there is no enternet cable plugged in and I have decided to use that one as victim~ here I'm in China,and a second-hand DDR2 ram is more cheap,for a 1GB one with 8 chips,only costs about USD$8,so my question is, how to figure out the chip on the ram is fit or not
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