Apple mac pro server mid 2010 User Manual

Mac Pro (Mid 2010) Take Apart — General Troubleshooting 21 2010-12-06
• Quick power cycle causes Memory Processor Board Diagnostic LEDs and CPU Overtemp 
LEDs to illuminate solidly
Important: Since the SMC firmware is stored on both the backplane board and processor 
board, it is important that the version of SMC firmware is the same on both boards.
Please follow the steps outlined in KnowledgeBase article HT1557, “About Firmware Updates 
for Intel-based Macs,” to perform an EFI and/or SMC firmware...

Mac Pro (Mid 2010) Take Apart — General Troubleshooting 22 2010-12-06
Memory Configuration
Mac Pro (Mid 2010) comes with a minimum of 3 GB of memory in single-processor 
configurations, or a minimum of 6 GB memory in dual-processor configurations, installed as  
1 GB unbuffered ECC dual inline memory modules (UDIMMs). 
DIMMs must fit these specifications:
• PC3-10600E,1333 MHz, DDR3 SDRAM UDIMMs
• Error-correcting code (ECC)
• 72-bit wide, 240-pin ECC modules
• 36 memory ICs maximum per ECC UDIMM
For...

Mac Pro (Mid 2010) Take Apart — General Troubleshooting 23 2010-12-06
Dual-Processor Configuration
An 8-core or 12-core Mac Pro (Mid 2010) has one processor and eight memory slots. You can 
install 1 GB, 2 GB, or 4 GB DIMMs for a total of up to 32 GB of memory. 
You can install different size DIMMs in Mac Pro (Mid 2010). However, for best performance, 
Apple recommends you install equal-size DIMMs (all 1 GB, all 2 GB, or all 4 GB) filling the slots in 
the order listed in this table. Note that you cannot...

Mac Pro (Mid 2010) Take Apart — General Troubleshooting 24 2010-12-06
Memory Diagnostic LEDs
The single-processor and dual-processor boards include a set of diagnostic memory LEDs. The 
following illustrations show the location of each LED and its associated DIMM slot.
Single-Processor Board
Dual-Processor Board
To diagnose memory issues, start up the computer and check the diagnostic memory LEDs. An 
illuminated, red LED indicates its associated DIMM may be poorly seated or failed. 
Note that Apple...

Mac Pro (Mid 2010) Take Apart — General Troubleshooting 25 2010-12-06
Troubleshooting Memory LEDs
Follow this procedure when troubleshooting each DIMM identified by a red LED:
1. Remove and reseat DIMM.
2.  Restart computer. If associated LED is no longer illuminated, issue is resolved. 
3. If associated LED remains illuminated, replace DIMM with new DIMM.
4.  Restart computer and verify LED is no longer illuminated.
There is one exception. If two LEDs illuminate at the same time for the 3 DIMM and 4...

Mac Pro (Mid 2010) Take Apart — General Troubleshooting 26 2010-12-06
PCIe/Graphics Cards
The Mac Pro (Mid 2010) backplane board includes one double-wide PCI Express (PCIe) 
graphics slot and three PCIe expansion slots, for a total of four slots. The computer comes with 
a graphics card installed in slot 1. You can install additional PCIe graphics and expansion cards 
in the remaining three expansion slots. 
All four slots support 16-lane cards. 
Slot electrical specifications:
• Slots 1 and 2: x16 PCIe...

Mac Pro (Mid 2010) Take Apart — General Troubleshooting 27 2010-12-06
Functional Overview
Processor Board
CPU A Heatsink Fan and Ther ma\f Sensor* Inter mitt ent shut down
* Fr eeze s
* Noisy or \fast \fans\y
* Slo w or r edu\bed per \for man\b e
CPU A* Pow er & F ans, no bo ot/video
* Fr eeze s
* K ernel pani\b
Nor th\br idge , Hea tsink and 
Ther ma\f Sensor
* Inter mitt ent shut down
* Fr eeze s or unstable sy stem
* Noisy or \fast \fans\y
* Slo w or r edu\bed per \for man\b e
Back p\fane In ter...

Mac Pro (Mid 2010) Take Apart — General Troubleshooting 28 2010-12-06
Backplane Board
Hard Dr ive Ther mal Sensors
(1 per dr ive)
* In ter mitt ent shut down
* Fr eeze s or unstable sy stem
* Noisy or fast fans
* Slo w or r educed perfor manc e
* Dr ive s pin-do wn
Back plane In ter connec t* No Pow er
* No bo ot
* In ter mitt ent fr eeze s
* Ker nel Panic
AirPor t* A irPor t not det ected in
  Sy stem Pr ofiler
* K ernel panic on bo ot
   or wi-fi da ta transfer
Inter nal Sp eaker* No bo ot chime
* N o...

Mac Pro (Mid 2010) Take Apart — General Troubleshooting 29 2010-12-06
Block Diagram
Optical D riv e
T op
P CIe G en1 2.5GT/s
1 Lane s Each D irec tion
0.3GB/s B andwidthPCIe G en1 2.5GT/s
1 Lane E ach Direc tion
0.3GB/s B andwidth
Gb E net A 1
x16 G en2 P CIe Slot
2
x16 G en2 P CIe Slot
PCIe G en2 5GT/s
1 6 Lane s Each D irec tion
1 0GB/s B andwidth
Mac P ro (M id 2010) S yst em B lock D iagram
CPU A
X eon
PCIe G en2 5GT/s
1 6 Lane s Each D irec tion
1 0GB/s B andwidth
4
x4 G en2 P CIe Slot / R AID
PCIe...

Mac Pro (Mid 2010) Take Apart — General Troubleshooting 30 2010-12-06
Common Reset Procedures
The following reset procedures are often helpful in troubleshooting Mac Pro issues.
Resetting the System Management Controller (SMC)
The System Management Controller (SMC) controls all power functions for the computer. If the 
computer is experiencing any power issue, resetting the SMC may resolve it. The SMC controls 
several functions, including:
• Telling the computer when to turn on, turn off, sleep, wake,...