{"id":24456,"date":"2018-12-05T10:57:54","date_gmt":"2018-12-05T03:57:54","guid":{"rendered":"https:\/\/tmp.phongvu.vn\/?p=24456"},"modified":"2018-12-05T10:57:54","modified_gmt":"2018-12-05T03:57:54","slug":"1810968","status":"publish","type":"post","link":"https:\/\/tmp.phongvu.vn\/hoi-dap\/1810968\/","title":{"rendered":"1810968"},"content":{"rendered":"

Gi\u1edbi thi\u1ec7u chi ti\u1ebft B\u1ed9 nh\u1edb\/ Ram Kingston 8GB ECC DDR4 2400 (KSM24ES8\/8ME)<\/strong><\/h2>\n

 <\/p>\n

Th\u00f4ng s\u1ed1 k\u0129 thu\u1eadt :<\/h3>\n
    \n
  • Ngu\u1ed3n \u0111i\u1ec7n: VDD = 1.2V<\/li>\n
  • VDDQ = 1.2V \u0111i\u1ec3n h\u00ecnh<\/li>\n
  • VPP = 2.5V \u0111i\u1ec3n h\u00ecnh<\/li>\n
  • VDDSPD = 2.2V \u0111\u1ebfn 3.6V<\/li>\n
  • Ng\u1eaft k\u1ebft n\u1ed1i danh ngh\u0129a v\u00e0 \u0111\u1ed9ng (ODT) cho t\u00edn hi\u1ec7u d\u1eef li\u1ec7u<\/li>\n
  • T\u1ef1 \u0111\u1ed9ng l\u00e0m m\u1edbi \u1edf ngu\u1ed3n \u0111i\u1ec7n th\u1ea5p (LPASR)<\/li>\n
  • \u0110\u1ea3o ng\u01b0\u1ee3c bus d\u1eef li\u1ec7u (DBI) cho bus d\u1eef li\u1ec7u<\/li>\n
  • T\u1ea1o v\u00e0 hi\u1ec7u chu\u1ea9n VREFDQ<\/li>\n
  • On-board I2 hi\u1ec7n di\u1ec7n-ph\u00e1t hi\u1ec7n (SPD) EEPROM<\/li>\n
  • C\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 t\u00edch h\u1ee3p SPD<\/li>\n
  • Ch\u1ec9nh s\u1eeda burst-chop (BC) 4 v\u00e0 \u0111\u1ed9 d\u00e0i burst (BL) th\u00f4ng qua b\u1ed9 \u0111\u1eb7t ch\u1ebf \u0111\u1ed9 (MRS)<\/li>\n
  • C\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn BC4 ho\u1eb7c BL8 tr\u1ef1c ti\u1ebfp (OTF)<\/li>\n
  • PCB: Chi\u1ec1u cao 1,23 \u201d(31,25 mm)<\/li>\n
  • Tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng RoHS v\u00e0 Halogen-Free<\/li>\n<\/ul>\n

    \"Ram<\/p>\n

    Ram ECC l\u00e0 g\u00ec ?<\/h3>\n

    RAM ecc l\u00e0 m\u1ed9t thanh RAM c\u00f3 kh\u1ea3 n\u0103ng ECC \u2013 Error Checking and Correction. Ngh\u0129a l\u00e0 thanh RAM ecc c\u00f3 kh\u1ea3 n\u0103ng t\u1ef1 \u0111\u1ed9ng s\u1eeda l\u1ed7i. M\u1ed9t thanh RAM b\u00ecnh th\u01b0\u1eddng (RAM non-ecc) r\u1ea5t d\u1ec5 b\u1ecb l\u1ed7i khi truy\u1ec1n t\u00edn hi\u1ec7u \u1edf t\u1ed1c \u0111\u1ed9 cao. Khi b\u1ecb l\u1ed7i, RAM th\u01b0\u1eddng kh\u00f4ng th\u1ec3 s\u1eeda l\u1ed7i n\u00ean ph\u1ea3i n\u1ea1p l\u1ea1i to\u00e0n \u0111\u1ed9 d\u1eef li\u1ec7u. Ch\u1ec9 RAM ecc v\u1edbi kh\u1ea3 n\u0103ng t\u1ef1 \u0111\u1ed9ng s\u1eeda l\u1ed7i v\u00e0 \u0111i\u1ec1u khi\u1ec3n d\u00f2ng d\u1eef li\u1ec7u v\u00e0o ra m\u1edbi c\u00f3 kh\u1ea3 n\u0103ng \u1ed5n \u0111\u1ecbnh qu\u00e1 tr\u00ecnh truy\u1ec1n t\u00edn hi\u1ec7u. Khi b\u1ecb l\u1ed7i, RAM ecc ch\u1ec9 y\u00eau c\u1ea7u g\u1eedi l\u1ea1i \u0111\u00fang g\u00f3i tin b\u1ecb l\u1ed7i. V\u00ec nh\u1eefng \u01b0u \u0111i\u1ec3m nh\u01b0 v\u1eady n\u00ean RAM ecc th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c m\u00e1y ch\u1ee7 hay c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 RAM DDR ECC.<\/p>\n

    V\u1ec1 c\u1ea5u t\u1ea1o, RAM ECC c\u00f3 9 chip nh\u1edb so v\u1edbi RAM non-ECC ch\u1ec9 c\u00f3 8 chip nh\u1edb. Ta c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng ph\u00e2n bi\u1ec7t 2 lo\u1ea1i ram n\u00e0y b\u1eb1ng m\u1eaft th\u01b0\u1eddng (v\u1edbi \u0111i\u1ec1u ki\u1ec7n RAM “tr\u1ea7n”, kh\u00f4ng c\u00f3 l\u1edbp gi\u00e1p t\u1ea3n nhi\u1ec7t b\u00ean ngo\u00e0i).<\/p>\n

    \"Ram<\/p>\n","protected":false},"excerpt":{"rendered":"

    Gi\u1edbi thi\u1ec7u chi ti\u1ebft B\u1ed9 nh\u1edb\/ Ram Kingston 8GB ECC DDR4 2400 (KSM24ES8\/8ME)   Th\u00f4ng s\u1ed1 k\u0129 thu\u1eadt : Ngu\u1ed3n \u0111i\u1ec7n: VDD = 1.2V VDDQ =...<\/p>\n","protected":false},"author":1,"featured_media":24457,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[22],"tags":[],"_links":{"self":[{"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/posts\/24456"}],"collection":[{"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/comments?post=24456"}],"version-history":[{"count":1,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/posts\/24456\/revisions"}],"predecessor-version":[{"id":24459,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/posts\/24456\/revisions\/24459"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/media\/24457"}],"wp:attachment":[{"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/media?parent=24456"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/categories?post=24456"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/tags?post=24456"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}