隻牛就至少要380w...
自己響度睇...記得將TDP升做100..
之後將得出黎個數除0.7做PEAK...再加番50...(又或者你想更安全就乘1.2)
咁就係至少需要的12V供電火數...
所以如果部機計出黎係300W...係差唔多要12V線出到500W先叫安全...
2THEMAX...睇邊隻LA...唔係隻隻都好野...
(基本上我唔覺得佢值得賣咁貴...因為佢報大數...=_=)
至裝邊隻牌子...DELTA、SPI、ACBEL都唔錯...
ANTEC就唔好睇EARTHWATTS...COOLERMASTER就唔好睇EXTREME POWER...
2008-01-10 18:55:24 補充:
牛魔王GPV450?!唔好講笑播樓下...
http://www.2themax.com/power_mp_gpv.html自己睇下GPV450個12V combined...得果24.3A...By P=VI...12V只係出得291W...只係比用個網計出黎個continuous 12V power多左50W...(果個網自己都注明lite版係計緊12v power...)
http://www.extreme.outervision.com/psucalculatorlite.jsp
2008-01-11 20:49:02 補充:
樓下...我果d都係出黎接生意ge經驗黎...接都接得唔少lee類維修...事實上2themax真係報大左個數...而且...就算比你用廠商自己比出黎ge TDP去計...條數都唔會話差得好遠...你話夠用?用兩年你就知咩事...我都相信隻GPV450響開頭果一年係夠推~但兩年後我可以話多數現形話唔夠火~一般牛用一至兩年...你用他錶日日做full load test...再record低個數都會發現佢有20% drop...
2008-01-11 20:50:34 補充:
而且用數計出黎隻GPV450係長期full load...實際情況亦不遠矣...一件part長期full load狀態的話...老化情況係會加快...(especially線材)而將TDP總數加埋除0.7去計peak事實係需要...有做過電子工作(特別係維修)就知...所有電子野響起動果下都會食一個極大current...就係lee個時候最傷同食最多電...(就係所謂的peak)最安全計法就係除0.7...而加50...講真我lee度已經讓左一步...正路應該乘1.2先叫推幾年都響安全範圍入面。
2008-01-11 21:01:15 補充:
p.s. 如果你出到外國修電腦...我話你知lecturer教法係點..."無論部機點砌,PSU最基本要求要12v有500w,否則行幾年後會有several hardware problems"我都冇佢講得咁極端...當然~個lecturer咁講係有可能要照顧d冇接觸過lee行ge人先嘗試劃一條average出黎講...
2008-01-13 06:34:47 補充:
我冇講過唔會老化...問題係你計數果陣有冇計peak同老化~廠商講ge野係永遠對自己方有利...我再另外講多樣野你知...maximum power係廠商講幾多都得...因為一開機...只要你收緊timing去到0.000001s甚至再細...出黎個power就會愈大...所以廠商自己講ge maximum power係無意思...隨非佢講左佢自己個maximum power係take響邊一秒ge結果...我都唔想針鋒相對...問題係講到火牛...
2008-01-13 06:41:06 補充:
我個人而言係成部機最重要ge part...唔夠火的話其他part因電壓不穩死ge機會好大...當你睇佢個stat果陣...廠商自己聲稱ge maximum power最好唔好理~而佢自己聲稱ge "power" 可以係5v 12v 3.3v 三樣加埋ge peak power但係睇到佢個表入面就大廠份廠商都唔會cheat~(因為CHECK到香港有得告)
2008-01-13 07:01:25 補充:
GPV個賣點...其實唔係響power方面...正如我上面所講...佢聲稱ge power係可以cheat~(響維修部企得耐都應該知個播...=_=)GPV個賣點係響佢靜同埋涼...只不過入面d線材就一般都比較差...所以出番黎個power就比較細...在我黎講...真正靚牛...望下zippy、ocz、seasonic你就知佢地幾全面...(除左價錢)