{"id":271,"date":"2026-07-28T03:25:53","date_gmt":"2026-07-28T03:25:53","guid":{"rendered":"https:\/\/www.ruebatterie.com\/blog\/?p=271"},"modified":"2026-07-28T03:25:53","modified_gmt":"2026-07-28T03:25:53","slug":"test-complet-dell-optiplex-740-745-755-760-sff-un-pc-professionnel-legendaire-fiable-mais-necessitant-une-alimentation-adaptee","status":"publish","type":"post","link":"https:\/\/www.ruebatterie.com\/blog\/2026\/07\/28\/test-complet-dell-optiplex-740-745-755-760-sff-un-pc-professionnel-legendaire-fiable-mais-necessitant-une-alimentation-adaptee\/","title":{"rendered":"Test complet Dell OptiPlex 740 \/ 745 \/ 755 \/ 760 SFF : un PC professionnel l\u00e9gendaire, fiable mais n\u00e9cessitant une alimentation adapt\u00e9e"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Les Dell OptiPlex 740, 745, 755 et 760 SFF repr\u00e9sentent une \u00e9poque o\u00f9 les ordinateurs professionnels \u00e9taient con\u00e7us avant tout pour durer.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/images.openai.com\/static-rsc-4\/OcpTK8q9xbbuz-KjK9WBqetky2XJC0m3-JWZ1LtiJoNrgY-c_SSNa2c_byrJrWatsJ2x5DG-s1Z3Jspa22jlBQ3c_nL01xAJmXBfEiNELizfqvxfwYtRV1yKNKYPDC--hNffGUzO8IGTM1EKze8j2zXWdS-J8QOhQ1Bb0ywI6CdlYW4xXjGaqxs4_WEPBBMx?purpose=fullsize\" alt=\"\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Produits entre 2006 et 2009, ces machines ont \u00e9quip\u00e9 pendant des ann\u00e9es :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>entreprises ;<\/li>\n\n\n\n<li>\u00e9coles ;<\/li>\n\n\n\n<li>administrations ;<\/li>\n\n\n\n<li>banques ;<\/li>\n\n\n\n<li>environnements industriels.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">En 2026, ils ne peuvent plus rivaliser avec un PC moderne pour :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u274c Windows 11<br>\u274c jeux vid\u00e9o<br>\u274c montage vid\u00e9o<br>\u274c intelligence artificielle<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mais ils restent int\u00e9ressants pour :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 ordinateurs r\u00e9tro<br>\u2705 logiciels anciens<br>\u2705 syst\u00e8mes industriels<br>\u2705 terminaux professionnels<br>\u2705 petits serveurs Linux<br>\u2705 projets de bricolage informatique<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le principal probl\u00e8me aujourd\u2019hui n\u2019est pas seulement le processeur, mais l\u2019\u00e9tat du bloc d\u2019alimentation apr\u00e8s plus de 15 ans de fonctionnement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Une <strong><a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/www.ruebatterie.com\/item-dell-adapter-h275p-01-model-del17922_se?utm_source=chatgpt.com\">Alimentation Dell OptiPlex SFF<\/a><\/strong> compatible peut permettre de restaurer une machine ancienne et \u00e9viter le remplacement complet du PC.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">1. Pr\u00e9sentation de la gamme Dell OptiPlex SFF<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">La gamme OptiPlex est la s\u00e9rie professionnelle de Dell.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">SFF signifie :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Small Form Factor<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u2019est un format compact destin\u00e9 aux bureaux o\u00f9 l\u2019espace est limit\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Compar\u00e9 aux versions Mini Tower :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Avantages :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>plus petit ;<\/li>\n\n\n\n<li>moins encombrant ;<\/li>\n\n\n\n<li>consommation r\u00e9duite ;<\/li>\n\n\n\n<li>installation facile sous un bureau.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Inconv\u00e9nients :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>moins d\u2019espace pour les cartes d\u2019extension ;<\/li>\n\n\n\n<li>alimentation sp\u00e9cifique ;<\/li>\n\n\n\n<li>compatibilit\u00e9 mat\u00e9rielle limit\u00e9e.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">2. \u00c9volution des mod\u00e8les OptiPlex 740 \u00e0 760<\/h1>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Mod\u00e8le<\/th><th>Ann\u00e9e<\/th><th>Plateforme<\/th><\/tr><\/thead><tbody><tr><td>Dell OptiPlex 740<\/td><td>2006-2007<\/td><td>AMD<\/td><\/tr><tr><td>Dell OptiPlex 745<\/td><td>2006-2007<\/td><td>Intel Core 2<\/td><\/tr><tr><td>Dell OptiPlex 755<\/td><td>2007-2008<\/td><td>Intel Q35<\/td><\/tr><tr><td>Dell OptiPlex 760<\/td><td>2008-2009<\/td><td>Intel Q43<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">3. Dell OptiPlex 740 SFF : le mod\u00e8le AMD<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Le 740 est une version particuli\u00e8re de la gamme.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Configuration typique<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>AMD Athlon 64 X2<\/li>\n\n\n\n<li>chipset AMD 690<\/li>\n\n\n\n<li>m\u00e9moire DDR2<\/li>\n\n\n\n<li>disque SATA<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c0 son \u00e9poque :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2605\u2605\u2605\u2605\u2605 pour la bureautique<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Aujourd\u2019hui :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2605\u2605\u2606\u2606\u2606<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il reste adapt\u00e9 \u00e0 :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Windows XP ;<\/li>\n\n\n\n<li>logiciels anciens ;<\/li>\n\n\n\n<li>Linux l\u00e9ger.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Points forts<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u2714 architecture simple<br>\u2714 maintenance facile<br>\u2714 carte m\u00e8re robuste<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Points faibles<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u2718 performances limit\u00e9es<br>\u2718 moins \u00e9volutif que les mod\u00e8les Intel<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">4. Dell OptiPlex 745 SFF : le d\u00e9but de l\u2019\u00e8re Core 2<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Le 745 est consid\u00e9r\u00e9 comme un mod\u00e8le professionnel classique.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Configurations possibles :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pentium D ;<\/li>\n\n\n\n<li>Core 2 Duo ;<\/li>\n\n\n\n<li>Core 2 Quad.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Caract\u00e9ristiques :<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u00c9l\u00e9ment<\/th><th>Sp\u00e9cification<\/th><\/tr><\/thead><tbody><tr><td>CPU<\/td><td>Intel Core 2 Duo \/ Quad<\/td><\/tr><tr><td>Chipset<\/td><td>Intel Q965<\/td><\/tr><tr><td>RAM<\/td><td>DDR2<\/td><\/tr><tr><td>Stockage<\/td><td>SATA<\/td><\/tr><tr><td>Extension<\/td><td>PCIe Low Profile<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">En utilisation actuelle :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il convient encore pour :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>bureautique ancienne ;<\/li>\n\n\n\n<li>logiciels industriels ;<\/li>\n\n\n\n<li>syst\u00e8mes Linux simples.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">5. Dell OptiPlex 755 SFF : le mod\u00e8le le plus appr\u00e9ci\u00e9<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Le Dell OptiPlex 755 est probablement le plus c\u00e9l\u00e8bre de cette g\u00e9n\u00e9ration.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il utilise :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Intel Q35 Express<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Compatible avec :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Core 2 Duo ;<\/li>\n\n\n\n<li>Core 2 Quad ;<\/li>\n\n\n\n<li>Celeron.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Caract\u00e9ristiques techniques<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u00c9l\u00e9ment<\/th><th>Valeur<\/th><\/tr><\/thead><tbody><tr><td>Processeur<\/td><td>Core 2 Duo \/ Quad<\/td><\/tr><tr><td>M\u00e9moire<\/td><td>DDR2 667\/800<\/td><\/tr><tr><td>Maximum RAM<\/td><td>Jusqu\u2019\u00e0 8 Go<\/td><\/tr><tr><td>Disque<\/td><td>SATA<\/td><\/tr><tr><td>Carte graphique<\/td><td>PCI Express<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Le 755 est souvent recherch\u00e9 aujourd\u2019hui gr\u00e2ce \u00e0 :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>sa stabilit\u00e9 ;<\/li>\n\n\n\n<li>sa documentation compl\u00e8te ;<\/li>\n\n\n\n<li>ses pi\u00e8ces disponibles.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">6. Dell OptiPlex 760 SFF : la derni\u00e8re \u00e9volution<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Le mod\u00e8le 760 succ\u00e8de au 755.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Am\u00e9liorations :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>chipset Intel Q43 ;<\/li>\n\n\n\n<li>meilleure gestion \u00e9nerg\u00e9tique ;<\/li>\n\n\n\n<li>plateforme l\u00e9g\u00e8rement plus r\u00e9cente.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Configurations fr\u00e9quentes :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Core 2 Duo s\u00e9rie E ;<\/li>\n\n\n\n<li>chipset graphique Intel GMA4500.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Les performances restent proches du 755, mais la plateforme est l\u00e9g\u00e8rement plus moderne.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">7. Comparatif Dell OptiPlex SFF<\/h1>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Mod\u00e8le<\/th><th>Performance<\/th><th>Fiabilit\u00e9<\/th><th>Recommandation<\/th><\/tr><\/thead><tbody><tr><td>OptiPlex 740<\/td><td>\u2605\u2605\u2605<\/td><td>\u2605\u2605\u2605\u2605<\/td><td>Collection<\/td><\/tr><tr><td>OptiPlex 745<\/td><td>\u2605\u2605\u2605\u2606<\/td><td>\u2605\u2605\u2605\u2605<\/td><td>Ancien poste<\/td><\/tr><tr><td>OptiPlex 755<\/td><td>\u2605\u2605\u2605\u2605<\/td><td>\u2605\u2605\u2605\u2605\u2605<\/td><td>Excellent choix<\/td><\/tr><tr><td>OptiPlex 760<\/td><td>\u2605\u2605\u2605\u2605<\/td><td>\u2605\u2605\u2605\u2605\u2605<\/td><td>Meilleur choix<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">8. Le bo\u00eetier SFF : une conception professionnelle remarquable<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019un des grands avantages des OptiPlex reste le ch\u00e2ssis.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dell a con\u00e7u ces machines pour les techniciens.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Avantages :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2714 ouverture rapide<br>\u2714 composants accessibles<br>\u2714 c\u00e2blage propre<br>\u2714 remplacement facile des pi\u00e8ces<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On retrouve :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>emplacement disque SATA ;<\/li>\n\n\n\n<li>lecteur optique ;<\/li>\n\n\n\n<li>slots PCIe Low Profile ;<\/li>\n\n\n\n<li>m\u00e9moire facilement accessible.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">9. Performances en 2026<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">Windows 10<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Possible :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2605\u2605\u2606\u2606\u2606<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le syst\u00e8me fonctionne mais manque de r\u00e9activit\u00e9.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Windows 11<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00e9conseill\u00e9 :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>processeur trop ancien ;<\/li>\n\n\n\n<li>absence TPM moderne ;<\/li>\n\n\n\n<li>pilotes limit\u00e9s.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Linux<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le meilleur choix :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2605\u2605\u2605\u2605\u2605<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Compatible avec :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Debian ;<\/li>\n\n\n\n<li>Linux Mint XFCE ;<\/li>\n\n\n\n<li>Lubuntu.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">10. Le probl\u00e8me principal : le vieillissement du bloc alimentation<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Apr\u00e8s plus de 15 ans, l\u2019alimentation interne est souvent le composant le plus fragile.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sympt\u00f4mes fr\u00e9quents :<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">D\u00e9marrage impossible<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le PC :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ne r\u00e9agit plus ;<\/li>\n\n\n\n<li>d\u00e9marre puis s\u2019arr\u00eate.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Extinctions al\u00e9atoires<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Causes possibles :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>condensateurs vieillissants ;<\/li>\n\n\n\n<li>tensions instables ;<\/li>\n\n\n\n<li>protection \u00e9lectrique.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Bruit anormal<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le ventilateur peut devenir bruyant apr\u00e8s des ann\u00e9es.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">11. Remplacer l\u2019alimentation Dell OptiPlex SFF<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Le remplacement du bloc alimentation est souvent plus int\u00e9ressant que changer toute la machine.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Une <strong><a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/www.ruebatterie.com\/item-dell-adapter-h275p-01-model-del17922_se?utm_source=chatgpt.com\">Bloc alimentation OptiPlex 755<\/a><\/strong> adapt\u00e9e permet de conserver :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>la carte m\u00e8re ;<\/li>\n\n\n\n<li>le processeur ;<\/li>\n\n\n\n<li>les donn\u00e9es ;<\/li>\n\n\n\n<li>la configuration existante.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">12. Chargeur Dell H275P-01 : r\u00f4le et compatibilit\u00e9<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Le mod\u00e8le <strong>H275P-01<\/strong> fait partie des r\u00e9f\u00e9rences d\u2019alimentation Dell utilis\u00e9es sur certaines configurations professionnelles.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Une alimentation adapt\u00e9e garantit :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>tension correcte ;<\/li>\n\n\n\n<li>stabilit\u00e9 syst\u00e8me ;<\/li>\n\n\n\n<li>protection des composants.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Un <strong><a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/www.ruebatterie.com\/item-dell-adapter-h275p-01-model-del17922_se?utm_source=chatgpt.com\">Chargeur Dell H275P-01<\/a><\/strong> fiable est particuli\u00e8rement important pour une machine destin\u00e9e \u00e0 fonctionner plusieurs heures par jour.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">13. Guide g\u00e9n\u00e9ral de remplacement d\u2019alimentation<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 1<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c9teindre compl\u00e8tement le PC.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00e9brancher :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>c\u00e2ble secteur ;<\/li>\n\n\n\n<li>p\u00e9riph\u00e9riques.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 2<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ouvrir le bo\u00eetier SFF.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gr\u00e2ce au syst\u00e8me Dell :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>peu de vis ;<\/li>\n\n\n\n<li>acc\u00e8s rapide.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00e9connecter :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>c\u00e2ble carte m\u00e8re ;<\/li>\n\n\n\n<li>alimentation disque ;<\/li>\n\n\n\n<li>alimentation lecteur.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 4<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Installer la nouvelle alimentation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e9rifier :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>connecteurs ;<\/li>\n\n\n\n<li>puissance ;<\/li>\n\n\n\n<li>compatibilit\u00e9 mod\u00e8le.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">14. Maintenance recommand\u00e9e<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Pour prolonger la dur\u00e9e de vie :<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nettoyage interne<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tous les 1 \u00e0 2 ans :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>retirer poussi\u00e8re ;<\/li>\n\n\n\n<li>nettoyer ventilateurs.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Remplacement p\u00e2te thermique<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Apr\u00e8s plus de 15 ans :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">recommand\u00e9.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Remplacer le disque dur<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le meilleur upgrade :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Installer un SSD SATA.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gain :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2605\u2605\u2605\u2605\u2605<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">15. Consommation \u00e9lectrique<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Ces plateformes anciennes consomment davantage que les mini-PC modernes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Valeurs approximatives :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Repos :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">40 \u00e0 60 W<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Charge :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">80 W ou plus.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour un serveur allum\u00e9 24h\/24 :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">la consommation devient un facteur important.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">16. Utilisations recommand\u00e9es en 2026<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">Ordinateur r\u00e9tro<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u2605\u2605\u2605\u2605\u2605<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Parfait pour :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Windows XP ;<\/li>\n\n\n\n<li>anciens logiciels ;<\/li>\n\n\n\n<li>jeux anciens.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Machine industrielle<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u2605\u2605\u2605\u2605\u2606<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gr\u00e2ce \u00e0 :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>stabilit\u00e9 ;<\/li>\n\n\n\n<li>maintenance simple ;<\/li>\n\n\n\n<li>fonctionnement continu.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Serveur Linux l\u00e9ger<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u2605\u2605\u2605\u2606\u2606<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Possible mais consommation \u00e9lev\u00e9e.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">PC familial moderne<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u2605\u2605\u2606\u2606\u2606<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trop limit\u00e9.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">17. Avis final et notation<\/h1>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Crit\u00e8re<\/th><th>Note<\/th><\/tr><\/thead><tbody><tr><td>Fiabilit\u00e9<\/td><td>9,5\/10<\/td><\/tr><tr><td>Maintenance<\/td><td>9,5\/10<\/td><\/tr><tr><td>Extension<\/td><td>7\/10<\/td><\/tr><tr><td>Performance<\/td><td>4\/10<\/td><\/tr><tr><td>Consommation<\/td><td>5\/10<\/td><\/tr><tr><td>Valeur collection<\/td><td>8\/10<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Notes par mod\u00e8le<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Dell OptiPlex 760 SFF<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u2b50 7,8 \/ 10<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le meilleur compromis.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Dell OptiPlex 755 SFF<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u2b50 7,5 \/ 10<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le mod\u00e8le culte.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Dell OptiPlex 745 SFF<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u2b50 7 \/ 10<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Int\u00e9ressant pour collection.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Dell OptiPlex 740 SFF<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u2b50 6 \/ 10<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Plus limit\u00e9.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">FAQ \u2013 Dell OptiPlex SFF et alimentation<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">Est-ce que le Dell OptiPlex 755 fonctionne encore en 2026 ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Oui, pour les logiciels anciens, Linux l\u00e9ger et projets industriels.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pourquoi remplacer l\u2019alimentation d\u2019un ancien OptiPlex ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Parce qu\u2019une alimentation vieillissante peut provoquer :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>red\u00e9marrages ;<\/li>\n\n\n\n<li>panne totale ;<\/li>\n\n\n\n<li>instabilit\u00e9.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Peut-on am\u00e9liorer un OptiPlex SFF ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Oui :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SSD SATA ;<\/li>\n\n\n\n<li>augmentation RAM ;<\/li>\n\n\n\n<li>nettoyage complet ;<\/li>\n\n\n\n<li>remplacement alimentation.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Le remplacement du bloc alimentation est-il rentable ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Oui, car la structure m\u00e9canique Dell reste tr\u00e8s robuste.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Conclusion finale<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Les Dell OptiPlex 740, 745, 755 et 760 SFF repr\u00e9sentent une g\u00e9n\u00e9ration de PC professionnels construits pour durer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ils n\u2019ont plus la puissance des ordinateurs modernes, mais ils offrent encore :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>une excellente fiabilit\u00e9 ;<\/li>\n\n\n\n<li>une maintenance exceptionnelle ;<\/li>\n\n\n\n<li>une conception industrielle solide.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pour restaurer ces machines anciennes, le remplacement du bloc alimentation est souvent l\u2019intervention la plus importante.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Une <strong>Alimentation Dell OptiPlex SFF<\/strong> neuve permet de prolonger la vie de ces v\u00e9ritables \u00ab machines professionnelles classiques \u00bb et de continuer \u00e0 les utiliser dans des environnements r\u00e9tro, industriels ou \u00e9ducatifs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les Dell OptiPlex 740, 745, 755 et 760 SFF repr\u00e9sentent une \u00e9poque o\u00f9 les ordinateurs professionnels \u00e9taient con\u00e7us avant tout pour durer. Produits entre 2006 et 2009, ces machines ont \u00e9quip\u00e9 pendant des ann\u00e9es : En 2026, ils ne peuvent plus rivaliser avec un PC moderne pour : \u274c Windows 11\u274c jeux vid\u00e9o\u274c montage vid\u00e9o\u274c &hellip; <a href=\"https:\/\/www.ruebatterie.com\/blog\/2026\/07\/28\/test-complet-dell-optiplex-740-745-755-760-sff-un-pc-professionnel-legendaire-fiable-mais-necessitant-une-alimentation-adaptee\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Test complet Dell OptiPlex 740 \/ 745 \/ 755 \/ 760 SFF : un PC professionnel l\u00e9gendaire, fiable mais n\u00e9cessitant une alimentation adapt\u00e9e&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[97],"tags":[100],"class_list":["post-271","post","type-post","status-publish","format-standard","hentry","category-alimentation-serveur","tag-dell-optiplex-740"],"_links":{"self":[{"href":"https:\/\/www.ruebatterie.com\/blog\/wp-json\/wp\/v2\/posts\/271","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ruebatterie.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ruebatterie.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ruebatterie.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ruebatterie.com\/blog\/wp-json\/wp\/v2\/comments?post=271"}],"version-history":[{"count":1,"href":"https:\/\/www.ruebatterie.com\/blog\/wp-json\/wp\/v2\/posts\/271\/revisions"}],"predecessor-version":[{"id":272,"href":"https:\/\/www.ruebatterie.com\/blog\/wp-json\/wp\/v2\/posts\/271\/revisions\/272"}],"wp:attachment":[{"href":"https:\/\/www.ruebatterie.com\/blog\/wp-json\/wp\/v2\/media?parent=271"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ruebatterie.com\/blog\/wp-json\/wp\/v2\/categories?post=271"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ruebatterie.com\/blog\/wp-json\/wp\/v2\/tags?post=271"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}