本人自從將部機由 256MB memory 加到 512 MB (加多一張 256MB, 唔同牌子, 都係 DDR 266, CL2), 佢就不定時 reboot. 請問係乜野事?

有可能係你第2條ram有事.... 亦有可能係個ram槽有時... 你可以只係插第2條ram, 如果有事的你只係第1條ram

Mostly it sounds like the originally one has compatibility issue with the new one ...
If you really want to add more memory, buy at least the same brand ... or if you are currently using the no name brand, change to the brand name like Kingston (since it has better compatibility).

我唔同意樓上既講法...
牌子...根本無關係...新舊都係無關係..
我用舊1GB kingston DDR2 + 無牌子 512 + 最近買既 512MB Apacer...
根本無問題...266...333...400 其實都唔係問題...因為主版會自動降低個speed黎遷就...

我本身覺得係Ram slot 或者個 Ram本身就有問題...
請羅去更換..如果係新買應該可以1對1更換...

多謝各位 brother 的意見, 因為部機已經有三四年, 而的 RAM 已經冇得賣, 條新RAM 都係 bid 番?...所以都冇乜得換....我已經清潔過的 RAM 和 RAM 槽, 睇下重有冇問題先啦....有問題再請教各位....

咁你隻牛又幾多W呀?

Barry 兄, 咁我又冇留意喎.....
我都懷疑過會唔會係唔夠 power, 但應該又唔似喎.....

Some old ASUS Motherboard can not use DDR400 TryUp date BIOS

Try just using the new DDR Ram first.  If it works well and you are certain that the old one has no problem, then it would be the compatibility problem.  But if the computer works in an awkward manner, the problem would be the new RAM you bought.  Perhaps it's time to replace the computer after 3 or more years.  It's not worth to spend money on old junk.

我認為你條新加 ram 有問題基會大o的，試下只用新果條 ram 開機睇睇，如果都o係咁，就o係佢啦