{"id":12775,"date":"2020-02-22T02:09:49","date_gmt":"2020-02-22T02:09:49","guid":{"rendered":"https:\/\/hocvienit.vn\/?p=12775"},"modified":"2024-08-28T16:56:58","modified_gmt":"2024-08-28T09:56:58","slug":"quat-laptop-quay-vai-vong-roi-tat","status":"publish","type":"post","link":"https:\/\/hocvienit.vn\/?p=12775","title":{"rendered":"T\u1ea1i sao qu\u1ea1t laptop quay v\u00e0i v\u00f2ng r\u1ed3i t\u1eaft?"},"content":{"rendered":"

Sau khi k\u00edch ngu\u1ed3n tr\u00ean Mainboard<\/a>, b\u1ea1n th\u1ea5y qu\u1ea1t laptop quay v\u00e0i v\u00f2ng r\u1ed3i t\u1eaft. L\u1ed7i n\u00e0y l\u00e0 do ch\u1eadp t\u1ea3i nh\u1eefng ngu\u1ed3n ch\u00ednh tr\u00ean main nh\u01b0: 12V, 5V, 3v3, 12V (4pin). V\u1eady nguy\u00ean nh\u00e2n g\u00e2y ra l\u1ed7i n\u00e0y l\u00e0 g\u00ec?<\/span><\/p>\n

\"T\u1ea1i
T\u1ea1i sao qu\u1ea1t laptop quay v\u00e0i v\u00f2ng r\u1ed3i t\u1eaft?<\/figcaption><\/figure>\n

Tr\u01b0\u1eddng h\u1ee3p 1: Ch\u1ea1m m\u1ea1ch VRM<\/strong><\/h2>\n

Ch\u1ea1m m\u1ea1ch VRM l\u00e0 tr\u01b0\u1eddng h\u1ee3p ph\u1ed5 bi\u1ebfn nh\u1ea5t. \u0110\u1ec3 x\u00e1c \u0111\u1ecbnh xem t\u00ecnh hu\u1ed1ng c\u1ee7a b\u1ea1n c\u00f3 n\u1eb1m trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y hay kh\u00f4ng th\u00ec b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra nh\u01b0 sau: \u0110\u1ea7u ti\u00ean b\u1ea1n r\u00fat jack c\u1eafm 12V (4pin) v\u00e0 sau \u0111\u00f3 k\u00edch ngu\u1ed3n l\u1ea1i th\u1eed. N\u1ebfu k\u1ebft qu\u1ea3 l\u00e0 qu\u1ea1t laptop ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng th\u00ec ch\u00fang ta suy ra v\u1ea5n \u0111\u1ec1 \u0111\u1ebfn t\u1eeb m\u1ea1ch VRM t\u1ea1o \u00e1p Vcore cho CPU.<\/span><\/p>\n

T\u1eeb \u0111\u00e2y, ta xem x\u00e9t d\u1ecdc m\u1ea1ch Vcore bao g\u1ed3m:<\/span><\/p>\n

Mosfet<\/span><\/h3>\n

C\u00f3 th\u1ec3 nguy\u00ean nh\u00e2n g\u00e2y ra l\u1ed7i l\u00e0 do ch\u1eadp m\u1ed9t ho\u1eb7c nhi\u1ec1u mosfet<\/a> cho n\u00ean ch\u00fang ta h\u00e3y ki\u1ec3m tra l\u1ea7n l\u01b0\u1ee3t t\u1eebng mosfet m\u1ed9t v\u00e0 khi n\u00e0o th\u1ea5y xu\u1ea5t hi\u1ec7n d\u1ea5u hi\u1ec7u ch\u1ea1m G-D th\u00ec \u0111\u1ed3ng ngh\u0129a v\u1edbi\u00a0 mosfet \u0111\u00f3 \u0111\u00e3 ch\u1ebft. Ngo\u00e0i ra, \u0111\u1ec3 ch\u1eafc ch\u1eafn 100% mosfet \u0111\u00e3 ch\u1ebft, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00e1y kh\u00f2 nhi\u1ec7t r\u1ed3i x\u1ea3 mosfet ra kh\u1ecfi Mainboard v\u00e0 ti\u1ebfn h\u00e0nh \u0111o r\u1eddi \u1edf b\u00ean ngo\u00e0i.<\/span><\/p>\n

\"Mosfet\"
Mosfet<\/figcaption><\/figure>\n

IC dao \u0111\u1ed9ng<\/span><\/h3>\n

N\u1ebfu mosfet kh\u00f4ng ph\u1ea3i l\u00e0 nguy\u00ean nh\u00e2n c\u1ee7a v\u1ea5n \u0111\u1ec1 th\u00ec kh\u1ea3 n\u0103ng cao l\u00e0 IC dao \u0111\u1ed9ng b\u1ecb ch\u1ea1m. Khi \u0111\u00f3, ph\u01b0\u01a1ng ph\u00e1p kh\u1eafc ph\u1ee5c l\u1ed7i \u1edf \u0111\u00e2y l\u00e0 ti\u1ebfn h\u00e0nh x\u1ea3 IC dao \u0111\u1ed9ng v\u00e0 thay th\u1ebf IC m\u1edbi.<\/span><\/p>\n

IC driver<\/span><\/h3>\n

Kh\u1ea3 n\u0103ng cu\u1ed1i c\u00f9ng l\u00e0 do IC driver b\u1ecb ch\u1ea1m. H\u01a1n th\u1ebf n\u1eefa, khi IC driver b\u1ecb ch\u1ea1m c\u00f2n k\u00e9o theo c\u1ea3 t\u00ecnh tr\u1ea1ng mosfet b\u1ecb ch\u1ebft hay IC dao \u0111\u1ed9ng b\u1ecb ch\u1ebft.<\/span><\/p>\n

Xem th\u00eam: C\u00e1ch nh\u1eadn bi\u1ebft c\u00e1c lo\u1ea1i IC ngu\u1ed3n tr\u00ean mainboard laptop<\/a><\/p>\n

T\u1ee5 6V3\/2200MF ho\u1eb7c c\u00e1c t\u1ee5 bi l\u1ecdc ngu\u1ed3n<\/span><\/h3>\n

Ngo\u00e0i c\u00e1c b\u1ed9 ph\u1eadn tr\u00ean m\u1ea1ch Vcore tr\u00ean, b\u1ea1n c\u00f2n c\u1ea7n xem x\u00e9t \u0111\u1ebfn t\u1ee5 6V3\/2200MF ho\u1eb7c c\u00e1c t\u1ee5 bi l\u1ecdc ngu\u1ed3n b\u1edfi n\u00f3 c\u0169ng t\u1ed3n t\u1ea1i kh\u1ea3 n\u0103ng g\u00e2y ra l\u1ed7i qu\u1ea1t laptop quay v\u00e0i v\u00f2ng r\u1ed3i t\u1eaft.<\/span><\/p>\n

Tr\u01b0\u1eddng h\u1ee3p 2: Ch\u1ea1m ngu\u1ed3n RAM, ngu\u1ed3n AGP hay ngu\u1ed3n Chipset<\/strong><\/h2>\n

\u0110\u1ec3 x\u00e1c \u0111\u1ecbnh xem b\u1ea1n c\u00f3 n\u1eb1m trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y hay kh\u00f4ng th\u00ec b\u1ea1n h\u00e3y ki\u1ec3m tra c\u00e1c mosfet \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t trong khu v\u1ef1c n\u00e0y.<\/span><\/p>\n

Tr\u01b0\u1eddng h\u1ee3p 3: Ch\u1ea1m Chip c\u1ea7u Nam<\/strong><\/h2>\n

Tr\u01b0\u1eddng h\u1ee3p n\u00e0y l\u00e0 tr\u01b0\u1eddng h\u1ee3p \u00edt g\u1eb7p b\u1edfi khi b\u1ea1n k\u00edch ngu\u1ed3n th\u00ec m\u1ed9t b\u1ed9 ph\u1eadn c\u1ee7a Chip c\u1ea7u Nam<\/a> \u0111\u00e3 \u0111\u01b0\u1ee3c ho\u1ea1t \u0111\u1ed9ng r\u1ed3i n\u00ean r\u1ea5t kh\u00f3 x\u1ea3y ra t\u00ecnh tr\u1ea1ng ch\u1ea1m Chip c\u1ea7u Nam. Th\u1ebf nh\u01b0ng b\u1ea1n v\u1eabn kh\u00f4ng n\u00ean lo\u1ea1i tr\u1eeb kh\u1ea3 n\u0103ng n\u00e0y \u0111\u00e2u nh\u00e9! Bi\u1ebft \u0111\u00e2u b\u1ea1n l\u1ea1i kh\u00f4ng may m\u1eafn r\u01a1i v\u00e0o tr\u01b0\u1eddng h\u1ee3p n\u00e0y \u0111\u1ea5y.<\/span><\/p>\n

\"Chip
Chip c\u1ea7u Nam<\/figcaption><\/figure>\n

Tr\u01b0\u1eddng h\u1ee3p 4: Ch\u1ea1m c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c<\/strong><\/h2>\n

V\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c, b\u1ea1n ch\u1ec9 c\u00f2n ph\u01b0\u01a1ng ph\u00e1p k\u00edch \u00e9p ngu\u1ed3n ATX<\/a> ho\u1eb7c c\u1ea5p ngu\u1ed3n r\u1eddi (s\u1eed d\u1ee5ng b\u1ed9 c\u1ea5p ngu\u1ed3n cho laptop) cho t\u1eebng \u0111\u01b0\u1eddng \u00e1p ch\u00ednh, ti\u1ebfp \u0111\u1ebfn d\u00f9ng tay s\u1edd th\u1eed xem c\u00f3 chip n\u00e0o c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n b\u00ecnh th\u01b0\u1eddng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh.<\/span><\/p>\n

Tr\u00ean \u0111\u00e2y l\u00e0 chia s\u1ebb c\u1ee7a HOCVIENiT.vn v\u1ec1 c\u00e1c nguy\u00ean nh\u00e2n g\u00e2y ra l\u1ed7i qu\u1ea1t laptop quay v\u00e0i v\u00f2ng r\u1ed3i t\u1eaft. Hi v\u1ecdng b\u1ea1n c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn cho m\u00ecnh ph\u1ea7n m\u1ec1m ph\u00e2n v\u00f9ng \u1ed5 c\u1ee9ng ph\u00f9 h\u1ee3p nh\u1ea5t. Ch\u00fac b\u1ea1n th\u00e0nh c\u00f4ng!<\/span><\/p>\n

N\u1ebfu c\u00f3 b\u1ea5t c\u1ee9 th\u1eafc m\u1eafc n\u00e0o v\u1ec1 c\u00e1c ki\u1ebfn th\u1ee9c li\u00ean quan \u0111\u1ebfn m\u00e1y t\u00ednh th\u00ec b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ec3 l\u1ea1i b\u00ecnh lu\u1eadn b\u00ean d\u01b0\u1edbi b\u00e0i vi\u1ebft n\u00e0y. V\u00e0 \u0111\u1eebng qu\u00ean \u0111\u00f3n \u0111\u1ecdc c\u00e1c b\u00e0i vi\u1ebft h\u1eefu \u00edch kh\u00e1c c\u1ee7a HOCVIENiT.vn nh\u00e9.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Sau khi k\u00edch ngu\u1ed3n tr\u00ean Mainboard, b\u1ea1n th\u1ea5y qu\u1ea1t laptop quay v\u00e0i v\u00f2ng r\u1ed3i t\u1eaft. L\u1ed7i n\u00e0y l\u00e0 do ch\u1eadp t\u1ea3i nh\u1eefng ngu\u1ed3n ch\u00ednh tr\u00ean main nh\u01b0: 12V, 5V, 3v3, 12V (4pin). V\u1eady nguy\u00ean nh\u00e2n g\u00e2y ra l\u1ed7i n\u00e0y l\u00e0 g\u00ec?<\/p>\n","protected":false},"author":95,"featured_media":12821,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[185,94,192],"tags":[261,558],"_links":{"self":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/12775"}],"collection":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/users\/95"}],"replies":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=12775"}],"version-history":[{"count":0,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/12775\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/media\/12821"}],"wp:attachment":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12775"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12775"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12775"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}