Apple mac pro early 2008 User Manual
Have a look at the manual Apple mac pro early 2008 User Manual online for free. It’s possible to download the document as PDF or print. UserManuals.tech offer 195 Apple manuals and user’s guides for free. Share the user manual or guide on Facebook, Twitter or Google+.
Mac Pro (Early 2008) Take Apart — Processor Heatsinks for 2.8 and 3.0 GHz Processors 71 Processor Heatsinks for 2.8 and 3.0 GHz Processors This procedure applies to 2.8 GHz and 3.0 GHz configurations of the Mac Pro (Early 2008). For the 3.2 GHz configuration, see the procedure “Processor Heatsinks for 3.2 GHz Processors.” Note: The heatsink for 2.8 GHz and 3.0 GHz processors requires thermal grease for proper operation. Every time you remove the processor heatsink, you must replace the thermal grease. New grease and alcohol wipes for cleaning off the previous grease are included with replacement processors and logic boards. Instructions for applying the grease are included with this procedure. Note that replacement processor heatsinks come with the grease already applied. Tools The only tool required for this procedure is a long-handled, magnetized 3 mm flathead hex screwdriver. Preliminary Steps Before you begin, open the computer, lay it on its side with the access side facing up, and remove the following: Hard drives and hard drive carriers in drive bays 1 and • 2 PCI Express card installed in slot • 1 Any 12-inch PCI Express card• s Processor heatsink cove• r Front fan assembl• y Top and bottom memory card• s Memory cage with rear fan•
Mac Pro (Early 2008) Take Apart — Processor Heatsinks for 2.8 and 3.0 GHz Processors 72 Part Location Procedure Disconnect the 2-pin cable for the upper processor (CPU A) heatsink from the logic board. 1.
Mac Pro (Early 2008) Take Apart — Processor Heatsinks for 2.8 and 3.0 GHz Processors 73 Using a long-handled, magnetized 3 mm flathead hex screwdriver, loosen the four captive 2. mounting screws for the upper processor heatsink in the order indicated below. Lift the heatsink straight up and out of the enclosure.3. Disconnect the cable connector for the lower processor (CPU B) heatsink. 4.
Mac Pro (Early 2008) Take Apart — Processor Heatsinks for 2.8 and 3.0 GHz Processors 74 Using a long-handled, magnetized 3 mm flathead hex screwdriver, loosen the four captive 5. mounting screws for the lower processor heatsink in the order indicated below. Carefully tilt the heatsink so that it clears the bottom lip of the enclosure and then lift the 6. heatsink out of the computer.
Mac Pro (Early 2008) Take Apart — Processor Heatsinks for 2.8 and 3.0 GHz Processors 75 Replacement Procedure Preparing an Existing Heatsink for Re-installation If you are reinstalling an existing processor heatsink, complete steps 1–4 below for applying new thermal grease to the underside of the heatsink. If you are installing a new heatsink, do not apply thermal grease and skip to the next section, “Preparing a New Heatsink for Installation.” Using the alcohol pad included with the logic board or processor replacement part, clean off 1. any used thermal grease from the processor and the bottom of the heatsink. Using the thermal grease included with the logic board or processor replacement part, apply 2. one dot of fresh grease to the raised square area on the bottom of the heatsink. Spread the grease evenly across the square to a thickness of approximately 1 mm. 3. Warning: Do not apply more grease than recommended. The grease must not overflow the heatsink and come in contact with the processor connector.
Mac Pro (Early 2008) Take Apart — Processor Heatsinks for 2.8 and 3.0 GHz Processors 76 Preparing a New Heatsink for Installation If you are replacing a processor heatsink with a new heatsink, complete steps 1 and 2 below. Apply the top gasket included in the parts box to the top of the heatsink.1. If you are replacing the 2. lower processor heatsink with a new heatsink, install the bumper included in the parts box on the side of the heatsink. Note: Do not apply thermal grease to a new heatsink. It comes with thermal grease already in place, covered by a cap over the bottom of the heatsink. Before installation, remove the cap.
Mac Pro (Early 2008) Take Apart — Processor Heatsinks for 2.8 and 3.0 GHz Processors 77 Installing the Heatsink Carefully align the posts on the lower heatsink with the mounting holes in the logic board, 1. and lower the heatsink onto the processor. Lightly tighten the heatsink mounting screws in the order indicated below.2. To secure the heatsink to the processor, again tighten the screws in the order indicated.3. Reconnect the processor heatsink cable to the logic board.4. Repeat steps 1–5 for the upper processor heatsink.5.
Mac Pro (Early 2008) Take Apart — Processor Heatsinks for 3.2 GHz Processors 78 Processor Heatsinks for 3.2 GHz Processors The Mac Pro (Early 2008 Dual 3.2 GHz) computer uses a special coating on the processor heatsink and processor to manage the temperature in the computer. The silver-colored coating comes applied to the underside of the heatsink and the top of the processor. Use the following guidelines when handling the processor heatsink and/or processor: Wear disposable nitrile or latex gloves.• Avoid touching the silver-colored coating on the underside of the heatsink and the top of • the processor. Always make a visual inspection of new or existing heatsinks and processors before • installing them in the computer. See “Processor Heatsink and Processor Visual Inspection Instructions” in the Troubleshooting chapter for more information. • When removing or replacing the heatsink and/or processor, do not allow the heatsink to be separated from the processor for more than 30 minutes. The special coating on the heatsink and processor degrades with exposure to air; more than 30 minutes exposure could result in damage to the computer and a repeat, multi-part repair. Tools The only tool required for this procedure is a long-handled, magnetized 3 mm flathead hex screwdriver. Preliminary Steps Before you begin, open the computer, lay it on its side with the access side facing up, and remove the following: Hard drives and hard drive carriers in drive bays 1 and • 2 PCI Express card installed in slot • 1 Any 12-inch PCI Express card• s Processor heatsink cove• r Front fan assembl• y Top and bottom memory card• s Memory cage with rear fa• n IMPORTANT: If you need to install a new heatsink or processor, reassemble the unit while you are waiting for the new part to arrive.
Mac Pro (Early 2008) Take Apart — Processor Heatsinks for 3.2 GHz Processors 79 Part Location Procedure Disconnect the 2-pin cable for the upper processor (CPU A) heatsink from the logic board. 1.
Mac Pro (Early 2008) Take Apart — Processor Heatsinks for 3.2 GHz Processors 80 Using a long-handled, magnetized 3 mm flathead hex screwdriver, loosen the four captive 2. mounting screws for the upper processor heatsink in the order indicated below. Lift the heatsink straight up and out of the enclosure.3. Disconnect the cable connector for the lower processor (CPU B) heatsink. 4.