There drive strength of loongson2F is not good enough to support big memory in high freequency. That is limited by the chip. So even tune the DDR2 controller setting, perhaps it can not run stable with 2G/4G memories.
2011/4/26 Roman Mamedov <r...@romanrm.ru> > On Mon, 25 Apr 2011 19:10:07 +0600 > Roman Mamedov <r...@romanrm.ru> wrote: > > > My Fuloong now boots successfully with your patch on 2.6.38.3 and a > dual-rank > > 2GB DDR2-800 module from Hynix (8+8=16 chips). It seems to work ok, I am > > running "memtester" now to check stability, no errors so far. > > Bad news, after a prolonged test there are some errors detected by > memtester. > So it looks like this dual rank module is not completely stable on my > system. > I wonder if it is possible to tweak the RAM controller from a running OS, > e.g. > change the CAS latency from 5 to 6. > > -- > With respect, > Roman > -- 晏华 龙芯梦兰 软件部 -- You received this message because you are subscribed to the Google Groups "loongson-dev" group. To post to this group, send email to loongson-dev@googlegroups.com. To unsubscribe from this group, send email to loongson-dev+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/loongson-dev?hl=en.
