【計算機電(dian)源功率】怎么看臺(tai)式機電(dian)源功率 臺式機電源功率常識介紹
我們(men)常常提到電源的功率(lv),一般指的是(shi)電源的額(e)定(ding)輸出功率(lv)。在電源的銘牌(pai)上,標注的功率(lv)也是(shi)額(e)定(ding)功率(lv)。
額定功率
是電源(yuan)(yuan)廠家(jia)按照INTEL公(gong)司制定(ding)的(de)尺度標定(ding)的(de)功率。額(e)定(ding)功率可以表征電源(yuan)(yuan)工作的(de)均勻輸出。
輸出功率
指(zhi)環境溫度(du)為常溫(室溫25度(du)左(zuo)右(you),電(dian)源內部(bu)溫度(du)50度(du)左(zuo)右(you)),電(dian)壓(ya)范圍200V~264V時(shi),電(dian)源長時(shi)間不(bu)亂輸出的(de)功(gong)(gong)率(lv)。電(dian)源實際工(gong)作時(shi),輸出功(gong)(gong)率(lv)并不(bu)一定等(deng)同于額定功(gong)(gong)率(lv)。按照(zhao)INTEL公(gong)司(si)的(de)尺度(du),輸出功(gong)(gong)率(lv)往往是額定功(gong)(gong)率(lv)的(de)1.3到1.6倍。
峰值功率
指電源短(duan)時(shi)間內能達到的最(zui)大(da)功率,通常僅能維持30秒左右的時(shi)間。
電(dian)源(yuan)的(de)實際輸(shu)出功率,和環(huan)境的(de)溫度有很大的(de)關系。電(dian)源(yuan)內(nei)部溫渡過(guo)(guo)低或(huo)(huo)過(guo)(guo)高都會(hui)影響輸(shu)出。在環(huan)境溫度低于(yu)-5度或(huo)(huo)高于(yu)50度時,電(dian)源(yuan)的(de)輸(shu)出功率將降低,通(tong)常(chang)只(zhi)能達到常(chang)溫的(de)50~60%。
所謂的峰值功(gong)率是沒有任何實際意義的,由于電源一般不能在峰值輸(shu)出(chu)時(shi)不亂工作(zuo)。
電源都是按高(gao)(gao)于(yu)標注(zhu)的(de)額(e)定功(gong)(gong)(gong)(gong)率(lv)(lv)50W以(yi)上(shang)的(de)尺度設計(ji)制造(zao)的(de),而標注(zhu)的(de)功(gong)(gong)(gong)(gong)率(lv)(lv)都采用(yong)守舊的(de)額(e)定功(gong)(gong)(gong)(gong)率(lv)(lv),而常溫下的(de)最大功(gong)(gong)(gong)(gong)率(lv)(lv),往(wang)往(wang)高(gao)(gao)于(yu)額(e)定功(gong)(gong)(gong)(gong)率(lv)(lv)30%到60%以(yi)上(shang);峰值功(gong)(gong)(gong)(gong)率(lv)(lv)往(wang)往(wang)高(gao)(gao)于(yu)額(e)定功(gong)(gong)(gong)(gong)率(lv)(lv)100W-150W,250W的(de)電源峰值功(gong)(gong)(gong)(gong)率(lv)(lv)可(ke)以(yi)達到380W。
怎么看臺式機電源功率
一般(ban)看電(dian)源(yuan)(yuan)(yuan)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)我(wo)們(men)均說的(de)(de)(de)是(shi)額定功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv),所以(yi)大(da)(da)(da)家(jia)(jia)在(zai)(zai)選(xuan)購電(dian)源(yuan)(yuan)(yuan)的(de)(de)(de)時候(hou)一定要注意(yi)看額定功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv),而不是(shi)最(zui)(zui)大(da)(da)(da)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)。很多知名度不高(gao)的(de)(de)(de)山寨(zhai)品牌電(dian)源(yuan)(yuan)(yuan),均喜歡在(zai)(zai)電(dian)源(yuan)(yuan)(yuan)標簽中(zhong)標一個很高(gao)的(de)(de)(de)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)值,但這僅僅是(shi)最(zui)(zui)大(da)(da)(da)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv),并非額定功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv),要知道最(zui)(zui)大(da)(da)(da)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)是(shi)電(dian)源(yuan)(yuan)(yuan)的(de)(de)(de)極限(xian),電(dian)源(yuan)(yuan)(yuan)在(zai)(zai)極限(xian)條件下(xia)(xia)運行壽(shou)命是(shi)不會長久(jiu)的(de)(de)(de)。因此(ci)筆者建議大(da)(da)(da)家(jia)(jia)盡量選(xuan)用品牌電(dian)源(yuan)(yuan)(yuan),一般(ban)品牌電(dian)源(yuan)(yuan)(yuan)會明確標明額定功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv),以(yi)下(xia)(xia)我(wo)們(men)所說的(de)(de)(de)電(dian)源(yuan)(yuan)(yuan)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)也(ye)均指的(de)(de)(de)是(shi)額定功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)。
根據配置檔次不同,我們可以選用不同額定功率的電源,現在市面上可以看到的電源額定功率普遍在200W以(yi)上,下面我們通過(guo)實際配(pei)置來欄不同檔次配(pei)置到底該選(xuan)用多大功(gong)率的(de)電源:
一:入門電腦配置電源功率多少合適?
首先我們來看看比較有代表性的Intel經典入門配置:G630處(chu)理器+H61主(zhu)板+HD6750顯卡+1TB硬盤+4GB內存,整體功耗約為170W,對于一套(tao)經典的入門獨顯配(pei)置,所有(you)DIY配件加起來額定功率僅170W,加上鼠標(biao)、鍵(jian)盤(pan)撐死(si)也不會超過180W,再加上大約50W上線預留,對(dui)于(yu)入門獨顯配置,其實功率250W就足(zu)夠了。
從實際測試數據結果可以看出,其實入門配置的功率確實很低,即便在獨顯平臺下,功率也不足200W,如果還不搭配獨顯的(de)話,功率還可以(yi)降低幾十瓦,因此在一些SNB或者APU入門配(pei)置中其實額(e)定功率200W就已經完(wan)全夠了(le),因此對于入門配置(含獨顯)其實200W-300W左右足夠(gou)。
二:中端主流電腦配置電源功率多少合適?
下面我們再以經典的Intel中端主流電腦配(pei)置:H61主(zhu)板+i3 2120處理器+GTX460顯卡(ka)+1TB硬(ying)盤+4GB內存配(pei)置為例(li),介紹下(xia)其額定功(gong)率(lv)約為多少。
在目前主流裝機中最受歡迎的H61主板(ban)+i3 2120處理器+GTX460顯卡(ka)+1TB硬盤+4GB內存的電腦(nao),其額定功率也(ye)不過僅為240W左右,加上50W預留上線,其實理(li)想額定功率在300W左右即可滿足(zu)要求,另外我們(men)再通(tong)過測試AMD平臺(tai)主(zhu)流配置,如:速龍II 640四(si)核(he)+880G主板(ban)+HD6770顯卡+1TB硬盤(pan)+4GB內(nei)存其額(e)定功率也(ye)約在245W左右,最佳300W左右即(ji)可滿足需(xu)求。