[除錯] DDR2 電壓

看板hardware作者powerair時間15年前 (2011/01/12 06:24)推噓1(1推 0噓 10→)

留言11則, 6人參與討論串1/1

一年前組一台電腦剛組好時 XP會不定期重開機 (一天 1~2次) 主機版用的是星星的低價版記憶體是Jet Ram DDR2 800 當時Debug了好久後發現記憶體的電壓是 1.92v 用星星附的軟體將電壓調降到1.8後一切正常不會再自動重開機 (只是賠了一台華碩的給人家這台抱回家當孝親機第一次買星星就中槍 e04) 最近，一台以前組的電腦也碰到一樣的問題這次是技嘉(780) 記憶體正創見 DDR2 800 電壓一樣是 1.9v 更慘的是電壓降不下來從BIOS裡設電壓1.8v沒反應還是顯示1.9v 用技嘉的軟體勉強降到1.86v 從每天下午固定當一次變成一週當二次第一台當初用sp2004 測會有警告第二台試過sp2004` memtest86...等燒機軟體就是測不出問題後來還懷疑是公司電壓不穩連UPS都拿出來接想請問各位 DDR2的標準電壓到底是多少 wiki的描述看不太懂後面附上我遇到的這二個問題問題在於電壓嗎? 如果是的話，為什麼原廠要將電壓給設這麼高 = =" (備註:近一二年覺得自己人品愈來愈差已經投入品牌電腦的懷抱) http://en.wikipedia.org/wiki/DDR2_SDRAM Overview (前略) Power savings are achieved primarily due to an improved manufacturing process through die shrinkage, resulting in a drop in operating voltage (1.8 V compared to DDR's 2.5 V). The lower memory clock frequency may also enable power reductions in applications that do not require the highest available data rates. According to JEDEC[1] the maximum recommended voltage is 1.9 volts and should be considered the absolute maximum when memory stability is an issue (such as in servers or other mission critical devices). In addition, JEDEC states that memory modules must withstand up to 2.3 volts before incurring permanent damage (although they may not actually function correctly at that level). [1] http://www.jedec.org/download/search/JESD208.pdf -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 114.36.96.149 ※ 編輯: powerair 來自: 114.36.96.149 (01/12 06:27)

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