Hi Iru, On 08.09.2016 13:25, Iru Cai wrote: > Hi Patrick, > > On Wed, Sep 07, 2016 at 05:36:45PM +0200, Patrick Rudolph wrote: >> On Wed, 7 Sep 2016 21:15:05 +0800 >> Iru Cai <mytbk920...@gmail.com> wrote: >> >> Hi Iru, >> I've got a T520 with soldered pin header as in the referenced wiki page, >> and I've got a T420 where I had to use 10cm long wires to place the pin >> header near the RAM slots to make it accessible through the bottom flap. >> > > I never solder pins on T420, and have no such problem. Maybe there's > something to do with my soldering skills. > >> I've got no problems using both devices. >> >> Can you give more information where the system hangs ? >> Does it hang in coreboot? Does it occur after hours running the system ? > > The machine boots fine to Linux, but it can freeze after some time, > and I can't predict when this will happen.
Did you check that the ME is still doing fine? A log with CONFIG_DEFAULT_CONSOLE_LOGLEVEL >= DEBUG should tell. I'd also double check that the microcode update does it's job. Regards, Nico > >> >> Regards, >> Patrick >> > > Regards, > Iru > >>> Hi community, >>> >>> I've had this problem for a long time, but I don't feel like to ask it >>> until some one ask me about this problem. >>> >>> Lenovo T520 has a BIOS chip under the magnesium structure frame, and >>> it may have a WSON package, so I solder a pin connector at the `J100' >>> solder place. (https://www.coreboot.org/Board:lenovo/t520#Flashing) >>> However, I don't know whether it can cause problems. I flashed two >>> pieces of T520 mainboard (without nVIDIA GPU) before, and after it had >>> coreboot installed, the system could hang randomly, I don't know what >>> had happened. I hadn't tested it with the pin connector soldered and >>> factory firmwae. >>> >>> So I hope some one with this laptop can report some status in using. >>> >>> Regards, >>> Iru >> >> >> -- coreboot mailing list: coreboot@coreboot.org https://www.coreboot.org/mailman/listinfo/coreboot