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lenovo thinkpad t400 instruction manualWe have 44 Lenovo ThinkPad T400 manuals available for free PDF download: Hardware Maintenance Manual, Maintenance Manual, Service And Troubleshooting Manual, Setup Poster, Service Manual, Implementierungshandbuch, Manual De Deploiement, Guida Alla Distribuzione, Deployment Manual, Guia De Despliegue, Manual, User Manual, Notice, Initial Setup, Setup Manual. This computer complies with the radio frequency and safety standards of any country or region in which it has been approved for wireless use. Install and use your computer according to the following instrucNevertheless, it shall be used in such a manner that the potential for human contact during normal operation is minimized as follows: CAUTION: To comply with FCC RF exposure compliance requirements, a separation distance of at least 20 cm (8 inches) must be maintained between the antennas connected to the PCI Express MiniTherefore, a 20 cm of separation between the Bluetooth antenna and human body is not required. The Bluetooth device is located in the LCD cover. See “About your computer” in Access Help.Do not use the features. To do so would be a violation of Industry Canada regulations. V. Low power license-exempt radiocommunication devices (RSS-210) Operation is subject to the following two conditions: 1. This device may not cause interference, and 2. this device must accept any interference, including interference that may cause undesired operation of the device. The transmitter devices have been designed to operatLes peripheriques d’emission sont concus pour fonctionner avec des antennes integrees a l’ordinateur et ayant un gain maximAvis de conformite a la reglementation d’Industrie Canada Cet appareil numerique de la classe B est conforme a la norme NMB-003 du Canada. Telecommunication notices Federal Communications CoBut, if advance notice isn’t practical, you will be notified as soon as possible.
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You will be advised of your right to file a complaint with tThe equipment must also be installed using an acceptable method of communication. In some cases, the company’s inside wiring associated with a single line individual service may be extended by means of a certified connector assembly (telephone extension cord). The customer should be aware that compliance with the above conditions may not prevent Actuellement, les entreprises de telecommunication ne permettent pas que l’on raccorde leur materiel a des jacks d’abonne, sauf dans les cas precis prevus par les tarifs paticuliers de ces entreprises. Les reparations de materiel homologue doivent etre effectuees par un centre d’entretien canadien autorise designe par l. The only thing I could find online was the ThinkPad T400 and R400 Hardware Maintenance Manual. This doesn't seem like a user's manual teaching how to use the laptop, but more of a technical manual. Is there an user's manual? Thanks! The HMM covers a lot of ground. Is there something you wanted to know? The HMM covers a lot of ground. Is there something you wanted to know. Just the normal stuff, like how long to charge the battery and things like that. Also this is my first Thinkpad so I don't know how to use the fingerprint reader, camera, and even the keyboard light. Just a user's guide would be nice. But it seems also to be a technical document. Just a user's guide would be nice. Well the first two depend on your operating system, so you might want to consult your OS's documentation.PM or catch me on IRC: I'm ThinkRob on FreeNode and EFnet. Laptop: X270, running Fedora Desktop: Intellistation 285 (currently dead) Workstation: owned by my employer Toy: Miata! There always has been a gap in the area of user's manuals for computers. The innovation cycle is so rapid that when the new machine is kicked out the door, nobody in the company understands it completely. In the time the tech writers would take to do their jobs, the product is already half way down the cycle that ends in discontinuation and replacement. So typical users manuals, as found in the box, tend to be generic, and more frustrating than informative. Your best option is self study. You can't get locked out. The admin account always has the option to log in via password. If you try and can't figure something out, ask here. But try first, because it will make your questions easier to answer. My unit will come with some dead pixel and TN basic panel and. It came with a P8400 and I recently upgraded it to a T9400. It was like night and day. But I want to get as many. From my research it seems like a good laptop but I've got no info on how good the. NOT for T25-Retro. LIMITED AND RES TRICTED RIGHT S NO TICE: If data or software is delivered pursuant a Gener al Services Administr ation “GSA ” contr act, use, repr oduction, or disclosure is subject t o restrictions set forth in Contr act No.Use this manual along with the advanced diagnostic tests to troubleshoot pr oblems effectively. Before servicing a ThinkPad pr oduct, be sure to read all the information under “Safety information” on page 1 and “Important service information” on page 39.Never move suddenly or twist when you attempt to lift. 4. Lift by standing or by pushing up with your leg muscles; this action removes the strain from the muscles in your back. Do not attempt to lift any object that weighs more than 16 kg (35 lb) or that you think is too heavy for you.Make sure that your sleeves ar e fastened or rolled up above your elbows. If your hair is long, fasten it.Attention: Metal objects are good electrical conductors.Replace any safety device that is worn or defective.Do not obstruct fan louvers or cover them with labels or stickers. 2 ThinkPad T400 and R400 Hardwar e Maintenance Manual If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly.http://www.liga.org.ua/content/dell-poweredge-r610-service-manualAttention: An electrical shock can occur only when there is a complete circuit. Observe the special safety precautions when you work with very high voltages; Instructions for these pr ecautions are in the safety sections of maintenance information. Use extreme car e when measuring high voltages.First, check that it has been powered of f. v Always look carefully for possible hazar ds in your work area. Examples of these hazards ar e moist floors, nongrounded power extension cables, power surges, and missing safety grounds. Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electr ostatic discharges. Do not use this type of mat to protect yourself fr om electrical shock. Safety information 3 The surface is conductive; such touching can cause personal injury and machine damage.As each machine was designed and built, requir ed safety items were installed to pr otect users and service technicians from injury. This guide addresses only those items. Y ou should use good judgment to identify potential safety hazards due to attachment of non-ThinkPad featur es or options not covered by this inspection guide. If any unsafe conditions are pr esent, you must determine how serious the apparent hazard could be and whether you can continue without first corr ecting the problem. Consider these conditions and the safety hazards they pr esent: v Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal electrical shock) v Explosive hazards, such as a damaged CR T face or a bulging capacitor v Mechanical hazards, such as loose or missing har dware T o determine whether there ar e any potentially unsafe conditions, use the following checklist at the beginning of every service task. Begin the checks with the power off, and the power cor d disconnected. Checklist: 1. Check exterior covers for damage (loose, broken, or sharp edges). 2. Power off the computer. Disconnect the power cord. 3. Check the power cord for: a. A third-wire gr ound connector in good condition. Use a meter to measure third-wir e ground continuity for 0.1 ohm or less between the external ground pin and the frame gr ound. b. The power cord should be the type specified in the parts list. c. Insulation must not be frayed or worn. 4. Check for cracked or bulging batteries. 5. Remove the cover. 6. Check for any obvious non-ThinkPad alterations. Use good judgment as to the safety of any non-ThinkPad alterations. 7. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage. 8. Check for worn, frayed, or pinched cables. 9. Check that the power-supply cover fasteners (scr ews or rivets) have not been removed or tamper ed with. Safety information 5 Pr otect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same char ge. When handling ESD-sensitive parts: v Keep the parts in protective packages until they ar e inserted into the product.Most clothing is insulative and retains a char ge even when you are wearing a wrist strap.The mat is especially useful when handling ESD-sensitive devices. Grounding requirements Electrical grounding of the computer is r equired for operator safety and correct system function. Proper gr ounding of the electrical outlet can be verified by a certified electrician. Notes: 1. Use product-specific ESD pr ocedures when they exceed the requir ements noted here. 2. Make sure that the ESD pr otective devices you use have been certified (ISO 9000) as fully effective. Note: The use of a grounding system to guar d against ESD damage is desirable but not necessary. 6 ThinkPad T400 and R400 Hardwar e Maintenance Manual V erify this by shaking the computer and listening for rattling sounds. Metallic parts or metal flakes can cause electrical shorts. DANGER Some standby batteries contain a small amount of nickel and cadmium. Do not disassemble a standby battery, recharge it, throw it into fire or water, or short-circuit it. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery. DANGER The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or short-circuit it. Dispose of the battery pack as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack. DANGER The lithium battery can cause a fire, an explosion, or a severe burn. DANGER If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water for at least 15 minutes. Seek medical care if any symptoms from the fluid are present after washing. 8 ThinkPad T400 and R400 Hardwar e Maintenance Manual DANGER Though the main batteries have low voltage, a shorted or grounded battery can produce enough current to burn personnel or combustible materials. DANGER Unless hot swap is allowed for the FRU being replaced, do as follows before removing it: power off the computer, unplug all power cords from electrical outlets, remove the battery pack, and disconnect any interconnecting cables. Safety information 9 V erifique isso sacudindo o computador e procurando ouvir sons de pecas soltas. Pecas metalicas ou lascas de metal podem causar curto-circuito. PERIGO Algumas baterias reserva contem uma pequena quantidade de niquel e cadmio. Nao desmonte uma bateria reserva, recarregue-a, jogue-a no fogo ou na agua, ou deixe-a entrar em curto-circuito. Descarte a bateria conforme requerido pelas leis ou regulamentos locais. Use somente a bateria nas partes listadas apropriadas. O uso de uma bateria incorreta pode resultar em combustao ou explosao da bateria. PERIGO O pacote da bateria contem uma pequena quantidade de niquel. Nao o desmonte, jogue-o no fogo ou na agua, ou deixe-o entrar em curto-circuito. Descarte o pacote da bateria conforme requerido pelas leis ou regulamentos locais. Use somente a bateria nas partes listadas apropriadas ao substituir o pacote da bateria. PERIGO A bateria de litio pode causar incendio, explosao ou graves queimaduras. PERIGO Se o LCD quebrar e o fluido de dentro dele entrar em contato com seus olhos ou com suas maos, lave as areas afetadas imediatamente com agua durante pelo menos 15 minutos. Procure cuidados medicos se algum sintoma causado pelo fluido surgir apos a lavagem. 12 ThinkPad T400 and R400 Hardwar e Maintenance Manual PERIGO Embora as principais baterias possuam baixa voltagem, uma bateria em curto-circuito ou aterrada pode produzir corrente o bastante para queimar materiais de pessoal ou inflamaveis. PERIGO A menos que uma hot swap seja permitida para a FRU que esta sendo substituida, faca o seguinte antes de remove-la: desligue o computador, desconecte todos os cabos de energia das tomadas, remova o pacote de baterias e desconecte quaisquer cabos de interconexao. Safety information 13 Pour ce faire, secouez l’unite et assurez-vous qu’aucun bruit suspect ne se produit. Des pieces metalliques ou des copeaux de metal pourraient causer un court-circuit. DANGER Certaines batteries de secours contiennent du nickel et du cadmium. Ne les demontez pas, ne les rechargez pas, ne les exposez ni au feu ni a l’eau. Ne les mettez pas en court-circuit. Pour les mettre au rebut, conformez-vous a la reglementation en vigueur. Lorsque vous remplacez la pile de sauvegarde ou celle de l’horloge temps reel, veillez a n’utiliser que les modeles cites dans la liste de pieces detachees adequate. Une batterie ou une pile inappropriee risque de prendre feu ou d’exploser. DANGER La batterie contient du nickel. Ne la demontez pas, ne l’exposez ni au feu ni a l’eau. Ne la mettez pas en court-circuit. Pour la mettre au rebut, conformez-vous a la reglementation en vigueur. Lorsque vous remplacez la batterie, veillez a n’utiliser que les modeles cites dans la liste de pieces detachees adequate. En effet, une batterie inappropriee risque de prendre feu ou d’exploser. DANGER La pile de sauvegarde contient du lithium. Elle presente des risques d’incendie, d’explosion ou de brulures graves. Ne la rechargez pas, ne retirez pas son connecteur polarise et ne la demontez pas. Mettez la pile au rebut conformement a la reglementation en vigueur. Une pile inappropriee risque de prendre feu ou d’exploser. DANGER Si le panneau d’affichage a cristaux liquides se brise et que vous recevez dans les yeux ou sur les mains une partie du fluide, rincez-les abondamment pendant au moins quinze minutes. Consultez un medecin si des symptomes persistent apres le lavage. 14 ThinkPad T400 and R400 Hardwar e Maintenance Manual DANGER Bien que le voltage des batteries principales soit peu eleve, le court-circuit ou la mise a la masse d’une batterie peut produire suffisamment de courant pour bruler des materiaux combustibles ou causer des brulures corporelles graves. DANGER Si le remplacement a chaud n’est pas autorise pour l’unite remplacable sur site que vous remplacez, procedez comme suit avant de retirer l’unite: mettez l’ordinateur hors tension, debranchez tous les cordons d’alimentation des prises de courant, retirez le bloc de batterie et deconnectez tous les cables d’interconnexion. Safety information 15 Der Computer mu? geschuttelt und auf Klappergerausche gepruft werden. Metallteile oder-splitter konnen Kurzschlusse erzeugen. VORSICHT Die Bereitschaftsbatterie, die sich unter dem Diskettenlaufwerk befindet, kann geringe Mengen Nickel und Cadmium enthalten. Sie darf nur durch die V erkaufsstelle oder den IBM Kundendienst ausgetauscht werden. Sie darf nicht zerlegt, wiederaufgeladen, kurzgeschlossen, oder Feuer oder W asser ausgesetzt werden. Die Batterie kann schwere V erbrennungen oder V eratzungen verursachen. Bei der Entsorgung die ortlichen Bestimmungen fur Sondermull beachten. Beim Ersetzen der Bereitschafts-oder Systembatterie nur Batterien des T yps verwenden, der in der Ersatzteilliste aufgefuhrt ist. Der Einsatz falscher Batterien kann zu Entzundung oder Explosion fuhren. VORSICHT Akkus enthalten geringe Mengen von Nickel. Sie durfen nicht zerlegt, wiederaufgeladen, kurzgeschlossen, oder Feuer oder W asser ausgesetzt werden. Beim Ersetzen der Batterie nur Batterien des T yps verwenden, der in der Ersatzteilliste aufgefuhrt ist. VORSICHT Die Systembatterie ist eine Lithiumbatterie. Sie kann sich entzunden, explodieren oder schwere V erbrennungen hervorrufen. Batterien dieses T yps durfen nicht aufgeladen, zerlegt, uber 100 C erhitzt oder verbrannt werden. Auch darf ihr Inhalt nicht mit W asser in V erbindung gebracht oder der zur richtigen Polung angebrachte V erbindungsstecker entfernt werden. Der Einsatz falscher Batterien kann zu Entzundung oder Explosion fuhren. 16 ThinkPad T400 and R400 Hardwar e Maintenance Manual Bei der Entsorgung die ortlichen Bestimmungen fur Sondermull beachten. Der LCD-Bildschirm besteht aus Glas und kann zerbrechen, wenn er unsachgema.W enn der Bildschirm beschadigt ist und die darin befindliche Flussigkeit in Kontakt mit Haut und Augen gerat, sollten die betroffenen Stellen mindestens 15 Minuten mit W asser abgespult und bei Beschwerden anschlie?end ein Arzt aufgesucht werden. VORSICHT Aus Sicherheitsgrunden die Kunststoffabdeckung, die den unteren T eil der Spannungswandlerplatine umgibt, nicht entfernen. VORSICHT Obwohl Hauptbatterien eine niedrige Spannung haben, konnen sie doch bei Kurzschlu.VORSICHT W enn ein Austausch der FRU bei laufendem Betrieb nicht erlaubt ist, gehen Sie beim Austausch der FRU wie folgt vor: Schalten Sie den Computer aus, ziehen Sie alle Netzkabel von den Netzsteckdosen ab, entfernen Sie den Akku und ziehen Sie alle miteinander verbundenen Kabel ab. Safety information 17 Compruebelo agitando el sistema y escuchando los posibles ruidos que provocarian. Las piezas metalicas pueden causar cortocircuitos electricos. PELIGRO Algunas baterias de reserva contienen una pequena cantidad de niquel y cadmio. No las desmonte, ni recargue, ni las eche al fuego o al agua ni las cortocircuite. Desechelas tal como dispone la normativa local. Utilice solo baterias que se encuentren en la lista de piezas. La utilizacion de una bateria no apropiada puede provocar la ignicion o explosion de la misma. PELIGRO Las baterias contienen pequenas cantidades de niquel. Utilice solo baterias que se encuentren en la lista de piezas al sustituir la bateria. PELIGRO La bateria de repuesto es una bateria de litio y puede provocar incendios, explosiones o quemaduras graves. Desechela tal como dispone la normativa local. PELIGRO Si la LCD se rompe y el fluido de su interior entra en contacto con sus ojos o sus manos, lave inmediatamente las areas afectadas con agua durante 15 minutos como minimo. Obtenga atencion medica si se presenta algun sintoma del fluido despues de lavarse. 24 ThinkPad T400 and R400 Hardwar e Maintenance Manual PELIGRO Aunque las baterias principales tienen un voltaje bajo, una bateria cortocircuitada o con contacto a tierra puede producir la corriente suficiente como para quemar material combustible o provocar quemaduras en el personal. PELIGRO Salvo que se permita el intercambio en caliente para la unidad sustituible localmente, realice lo siguiente antes de extraerla: apague el sistema, desconecte todos los cables de alimentacion de las tomas de alimentacion electrica, extraiga la bateria y desconecte los cables de interconexion. Safety information 25 Such devices are also sold separately as options. If one of these drives is installed, it is certified in the U.S. to conform to the requir ements of the Department of Health and Human Services 21 Code of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. Elsewher e, the drive is certified to conform to the requirements of the International Electrotechnical Commission (IEC) 60825-1 and CENELEC EN 60825-1 for Class 1 laser products. If a CD-ROM drive, a DVD-ROM drive, or another laser device is installed, note the following: CAUTION: Use of controls or adjustments or performance of procedures other than those specified herein might result in hazardous radiation exposure. Opening the CD-ROM drive, the DVD-ROM drive, or any other optical storage device could result in exposur e to hazardous laser radiation. There ar e no serviceable parts inside those drives. Do not open. A CD-ROM drive, a DVD-ROM drive, or any other storage device installed may contain an embedded Class 3A or Class 3B laser diode. Note the following: DANGER Emits visible and invisible laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam. 28 ThinkPad T400 and R400 Hardwar e Maintenance Manual T ais dispositivos tambem sao vendidos separadamente como opcionais. Se uma dessas unidades estiver instalada, ela e certificada nos Estados Unidos em conformidade com os requisitos do Department of Health and Human Services 21 Code of Federal Regulations (DHHS 21 CFR), Subcapitulo J, para produtos a laser da Classe 1. Em outr os paises, a unidade e certificada em conformidade com os requisitos da International Electr otechnical Commission (IEC) 60825-1 e CENELEC EN 60825-1 para produtos a laser da Classe 1. Se uma unidade de CD-ROM, uma unidade de DVD-ROM, ou outro dispositivo de laser estiver instalado, observe o seguinte: CUIDADO: O uso de controles, ou ajustes, ou a execucao de procedimentos diferentes dos especificados nesta documentacao pode resultar em exposicao perigosa a radiacao. Abrir a unidade de CD-ROM, a unidade de DVD-ROM, ou qualquer outro dispositivo de armazenamento otico pode resultar em exposicao perigosa a radiacao de laser. Nao ha pecas que permitam manutencao dentro dessas unidades. Nao abra. Uma unidade de CD-ROM, uma unidade de DVD-ROM, ou qualquer outro dispositivo de armazenamento instalado pode conter um diodo de laser da Classe 3A ou Classe 3B integrado. Observe o seguinte: PERIGO Emite radiacao de laser visivel e invisivel quando aberto. Nao olhe diretamente para o feixe a olho nu ou com instrumentos oticos, e evite exposicao direta ao feixe. 30 ThinkPad T400 and R400 Hardwar e Maintenance Manual Ces unites sont egalement vendues separement en tant qu’options. Si l’une de ces unites est installee, elle est certifiee conforme, aux Etats-Unis, aux normes indiquees dans le sous-chapitre J du DHHS 21 CFR r elatif aux produits a laser de classe 1. Dans les autres pays, l’unite est certifiee etr e un produit a laser de classe 1 conforme aux normes CEI 60825-1 et CENELEC EN 60825-1. Si une unite de CD-ROM, une unite de DVD-ROM ou une unite a laser d’un autre type est installee, veuillez tenir compte des informations suivantes: A TTENTION: Pour eviter tout risque d’exposition au rayon laser, respectez les consignes de reglage et d’utilisation des commandes, ainsi que les procedures decrites dans le present manuel. L’ouverture de l’unite de CD-ROM, de l’unite de DVD-ROM ou de toute autr e unite de stockage optique peut entrainer une exposition a des radiations dangereuses. Aucune piece de ces unites n’est reparable. Ne pas ouvrir. Une unite de CD-ROM ou de DVD-ROM, ou toute autre unite de stockage optique peut contenir une diode a laser de classe 3A ou 3B. V euillez tenir compte des informations suivantes: DANGER Emet un rayonnement laser visible et invisible lorsque l’unite est ouverte. Evitez toute exposition directe au rayon laser. Evitez de regarder fixement le faisceau ou de l’observer a l’aide d’instruments optiques. Safety information 31 CD- und DVD-Laufwerke konnen auch gesondert als Zusatzeinrichtung erworben werden. Die Laufwerke erfullen die Anforder ungen gema. IEC 60825-1 (International Electrotechnical Commission) und gema. CENELEC EN 60825-1 fur Laserprodukte der Klasse 1. Bei der Installation von CD-ROM-Laufwerken, DVD-ROM-Laufwerken oder anderen Laser einheiten Folgendes beachten: VORSICHT: Die Bedienung des Gerats auf eine andere als die hier beschriebene W eise oder die Nichteinhaltung der hier beschriebenen Einstellungen oder Bedienschritte kann zur Freisetzung gefahrlicher Laserstrahlung fuhren. Beim Offnen eines CD-ROM-Laufwerks, DVD-ROM-Laufwerks oder ander en optischen Speicherlaufwerks konnen gefahrliche Laserstrahlungen freigesetzt werden. Die Laufwerke enthalten keine zu wartenden T eile. Laufwerke nicht offnen. Ein installiertes CD-ROM-Laufwerk, DVD-ROM-Laufwerk oder anderes optisches Speicherlaufwerk kann eine Laserdiode der Klasse 3A oder 3B enthalten. Folgendes beachten: GEF AHR Sichtbare und nicht sichtbare Laserstrahlung, wenn geofnet. Nicht in den Strahl blicken. Keine Lupen oder Spiegel verwenden. Strahlungsbereich meiden. 32 ThinkPad T400 and R400 Hardwar e Maintenance Manual Estas unidades tambien se venden por separado como opciones. Si esta instalada alguna de dichas unidades, se certifica que en los Estados Unidos cumple los requisitos del Department of Health and Human Services 21 Code of Federal Regulations (DHHS 21 CFR) Subchapter J para productos laser de Clase 1. En otros paises, se certifica que cumple los r equisitos para productos laser de Clase 1 de las normativas 60825-1 y CENELEC EN 60825-1 de International Electrotechnical Commission (IEC). Si esta instalada alguna unidad de CD-ROM, DVD-ROM u otro dispositivo laser, tenga en cuenta lo siguiente: PRECAUCION: La utilizacion de controles, ajustes o la realizacion de procedimientos diferentes a los especificados puede dar como resultado una exposicion peligrosa a radiaciones. Si abre la unidad de CD-ROM, DVD-ROM o cualquier otr o dispositivo de almacenamiento optico, podria quedar expuesto a una radiacion laser peligrosa. No hay piezas que requieran servicio dentr o de estas unidades. No las abra. Las unidades de CD-ROM, DVD-ROM u otro dispositivo de almacenamiento instalado pueden contener un diodo laser de Clase 3A o Clase 3B incorporado. T enga en cuenta lo siguiente: PELIGRO Emite radiacion laser visible e invisible cuando esta abierto. No fije la vista en el rayo, no lo mire directamente con instrumentos opticos y evite la exposicion directa al rayo. 36 ThinkPad T400 and R400 Hardwar e Maintenance Manual Before replacing parts: Make sure that all softwar e fixes, drivers, and BIOS downloads are installed before r eplacing any FRUs listed in this manual. After a system board is r eplaced, ensure that the latest BIOS is loaded to the system board befor e completing the service action.If you are instructed to r eplace either the processor board or the system boar d, and replacing one of them does not corr ect the problem, reinstall that boar d, and then replace the other one.Before r eplacing the adapter or device, remove the FRUs, one by one, to see if the symptoms change. Replace only the FRU that changed the symptoms. Attention: The setup configuration on the computer you are servicing may have been customized. Running Automatic Configuration may alter the settings. Note the current configuration settings (using the V iew Configuration option); then, when service has been completed, verify that those settings remain in ef fect. Strategy for replacing a hard disk drive Always try to run a low-level format befor e replacing a hard disk drive. This will cause all customer data on the hard disk to be lost. Be sur e that the customer has a current backup of the data befor e doing this task. Attention: The drive startup sequence in the computer you are servicing may have been changed. Be extremely car eful during write operations such as copying, saving, or formatting. If you select an incorrect drive, data or pr ograms can be overwritten. Important notice for replacing a system board Some components mounted on a system board ar e very sensitive. Improper handling of a system board can cause damage to those components, and may cause a system malfunction. Attention: When handling a system board: v Do not drop a system boar d or apply any excessive force to it.How to use error message Use the error codes displayed on the scr een to diagnose failures. If more than one error code is displayed, begin the diagnosis with the first err or code. Whatever causes the first error code may also cause false err or codes. If no error code is displayed, see whether the error symptom is listed in the Symptom-to-FRU Index for the computer you are servicing. 40 ThinkPad T400 and R400 Hardwar e Maintenance Manual A unique 4-digit MT and 3-digit model is provided to the customer to place orders (Example: 1829-W15). A CMV is a special bid offering. Therefor e, it is NOT generally announced. The PRODUCT ID portion of the machine label is the 4-digit MT and 3-digit CMV model (Example: 1829-W15).Again, CMVs are custom models and are not found in the HMM.