Em co 2 truong hop muon nho anh/chi giai thich giup em. Em co 2 may tinh, dang hoat dong on dinh va kha tot, tuy nhien dang hoat dong thi bi tat may. Nghi la hu nguon nen em da mua bo nguon moi ve thay lai gap phai tinh trang sau:
Cu thay nguon moi vao la bi chay, vua bat may la chay ngay, chay toan bo nhung day dien cua bo nguon. Thay nguon khac van bi tuong tu. Dem bao tri thi bo phan ky thuat bao la loi o HDD... Vay day la loi gi?
Thay nguon moi vao thi phat ra tieng no, nguon co mui khet. Thay lan 2 cung vay mac du chi moi cam dien chu chua mo may.
Nhung tinh trang tren la loi gi? mong cac anh chi giai dap va huong dan em cach nhan biet, khac phuc de em khoi phai "ton" nhu nhung lan nay nua. Cam on cach anh chi quan tam!
Lam Bao Toan
Hoi am xin gui ve:
Hoi am:
Tu truong hop thu hai co the thay la loi do nguon ban thay. O sau nguon co nut chuyen 100V/230V, ban kiem tra lai cai nay truoc. Sau do ban kiem tra den dien ap luoi. Tat ca 2 cai nay OK thi khong co ly gi nguon chay do loi HDD ca. Khi bat may ma nguon chay co the doi cho phan cung cua may, con khi chua bat may thi khong the doi cho HDD hay bat ki phan nao cua may. Truong hop thu nhat, co the la nguon da am i chay va cho den khi ban bat may thi dung luc nguon no. Ban co the den bat den nguoi ban 2 bo nguon do. Neu ban mua them nguon moi thi luu y kiem tra lai lan nua 2 van de tren. Khi lap vao, co the may bao loi do 2 lan nguon chay gay shock dien, ban chi can thao pin CMOS ra roi lap lai la duoc.
Hoang Manh Cuong
Lam Bao Toan than men, ban co cach tiet kiem nhat la thay main board. Benh nay ma noi tai o cung thi cung chiu may chu bao tri! Chac nguon tren main bi chap thoi. o cung ma la nguyen nhan thi no cung no va teo lau roi! Tuy nhien truoc luc thay thi ban nen ngo lai may cai nguon ban vua thay vi so ton chac chon nguon re! No la nguon gi, cong suat thuc bao nhieu co du nuoi may cua ban khong? Nhung noi that 98% la do main roi! Thay main di thoi.
Chualomlom
Bai ban viet tuong doi cu the. Trong bai co noi 2 truong hop nhung trong qua trinh viet cua ban chua tach rieng 2 truong hop ra nen kho giai dap. Toi co the hieu nhu sau
Truong hop 1: Cu thay nguon moi, bat nguon la chay, day dien nguon chay. Truong hop nay la do chap tai (cac duong nguon 5V, 3,3V, 12V, -5V, -12V bi chap). De sua duoc benh nay truoc tien ban phai am hieu ve ki thuat, ban tien hanh cach li tung thiet bi, tot nhat thao main ra khoi vi sau do tien hanh cam dien cho main (chi chay cac thanh phan thiet yeu thoi). Neu may van test binh thuong thi ta tien hanh kiem tra cac thiet bi khac nhu o cung (HDD), o mem (FDD), CDROM vv...Day la truong hop cham chap ban co the dung dong ho van nang (chinh ve thang do om ke) de do chan nguon (duoc cam vao day mau do va vang cua bo nguon) voi mass (hai chan nam o giua duoc cam vao hai day mau den cua bo nguon) neu bang 0 om thi ket luan thiet bi do bi cham chap.
Co the ban xac dinh bang mat cung duoc: bang cach ban quan sat xem be day nao bi nong chay va lan nguoc lai xem den thiet bi gi thi co the biet ngay thiet bi do bi cham chap. Neu truong hop be day to bi nong chay (be gom 20 den 24 chan) thi co the main cua ban mot chan nguon nao do da bi cham voi vo gay chap
Truong hop 2: Cam dien vao la chay nguon ngay
Benh nay la duong 5V cap truoc (day mau tim bi chap), co the main ban bi chay gay nen hien tuong nhu tren
Phuong Thao
Tinh hinh cua ban la qua te day. cho du co dat o 110 - 120V ma cam vao dien the o VN la 220V thi no cung chi no cau chi truoc khi hong hoc. Khi mua nguon moi ban hay thu nguon ngay bang cach noi day mau xanh la cay (duy nhat) voi mau den (day mat) voi nhau khi chua cam nguon vao main. Neu quat quay la nguon chay binh thuong, neu nguon moi thi ban khong can phai lam gi them. Hay kiem tra main nhe. Tot nhat la mang ca case di sua di. Co the dau do tren main bi doan mach roi, tu ro hay no chang han. Vi la loi o main nen cau chi dau vao cua nguon moi khong no ma chi chay bui day cam xuong main. Ban xem lai xem sao nhe!
Quang Sy
Dieu nay xay ra nguyen nhan la do mainboard cua ban da bi chap. Tat ca nhung nguon PenIII hoac PenIV hien nay deu su dung xung de khoi dong nguon do vay khong can ban bat cong tac thi may moi hoat dong ma ngay sau khi ban cam nguon 220v vao bo nguon thi may tinh cua ban cung co the tu khoi dong roi, nguyen nhan la chan khoi dong nguon CPU tren mainboard cua ban da bi chap (binh thuong khi ban an cong tac nguon chan nay moi chap xuong mat, tuc am nguon va luc nay moi khoi dong). Nhu vay khong chi chan nay bi chap ma mot so chan khac o tren main, chang han chan cap nguon 5v hay 12v... cung co the bi chap lam he thong doan mach, nong chay he thong day cap nguon va cuoi cung la linh kien cua bo nguon hong gay tieng no. Loi khuyen cua toi cho ban la hay thay ngay mot bo mainboard khac.
Duong Kieu Hung
