Next we had to remove the fan assembly, which we did by first removing two of the hard drive sleds so we could gain access to the lone screw that holds the fan assembly in place. Then, with a flexible putty knife we pulled the edge of the assembly away from the case and attempted to pull it out. The fan assembly will pull straight out, although we've found that it's a very tight fit and wiggling sometimes helps as you pull it out.

The fan assembly is made out of plastic so be careful as you're doing this; you'll want to put pressure on the less flimsy parts of the assembly to avoid snapping/cracking anything. Also be careful not to put pressure on the heatsinks as the aluminum is very thin and will bend very easily.


Click to Enlarge

With the fan assembly out take a moment to marvel at how large and heavy it is, and then put it aside as we need to get one more thing out of the way before we can unscrew the heatsinks. If you can get the memory cage out then this next step isn't necessary, but if you're like us and can't get the thing out then this next step will make removing the heatsinks a lot easier.


The plastic guard, pulled out slightly to expose the latches - Click to Enlarge

There's a plastic piece that sits in the left side of the memory cage; it's what the CPU heatsink cover latches on to on this side and it's also what helps the memory risers guide into place. This plastic piece can be removed fairly easily as it just latches into the memory cage itself, so break out the putty knife and let's get to it.


Click to Enlarge

All you need to do is unlatch the plastic guard from the memory cage by sliding your putty knife between the cage and the guard. As you unlatch the plastic guard start pulling it away from the CPUs and eventually you'll get it off completely. Patience pays off here as you don't want to break any of the latches.


Click to Enlarge

With the plastic guard off, it's now infinitely easier to gain access to the screws that hold the heatsinks in place. Each heatsink is attached to the motherboard by four allen screws; simply remove them (in an opposite side/opposite corner pattern) using a very long screwdriver (or a small allen wrench). We didn't have an allen wrench that worked so we attached two extenders to our screwdriver to get down to the screws.

With all of the screws undone for the first heatsink (the allen screws don't come off completely, they remain attached to the heatsink) you have to disconnect the thermistor cable that runs from the heatsink to the motherboard. Be sure to do this before you remove the heatsink as you don't want to cause any accidental damage to the cable.


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Finally you lift off the heatsink and set it aside, exposing the LGA-771 Xeon socket below. You can repeat the process for the second heatsink, also not forgetting to remove its thermistor cable (this one is actually beneath the memory cage) before pulling off the heatsink. With both heatsinks removed, it was time to swap processors.


Click to Enlarge

Upgrading the Mac Pro's CPU Finishing the Upgrade
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  • Calin - Tuesday, September 12, 2006 - link

    Assuming you want a workstation capable of accessing 16GB of RAM (and using two processors), your options are a bit more reduced. There was an article on Anandtech, and the Mac Pro (the most expensive) was just a couple of hundred dollars more expensive than the sum of its components (and operating system I think).
  • tuteja1986 - Tuesday, September 12, 2006 - link

    Intel Xeon 5150 2.66Ghz
    1GB PC2-5300 DDR2
    250GB 7200RPM Sata-II
    16x DVDRW
    7300GT
    Good Looking Case
    Server Mobo
    Mac OS

    $2499

    vs

    Intel Xeon 5150 2.66Ghz $729
    3x 250GB Western Digital in raid 5 $65 each = $195
    Pionere 110D = $50
    7900GT $260
    2x 1GBx2 OCZ PC2-5300 $200 each = $400
    TYAN S5370G2NR-RS Dual Socket 771 Intel 5000V SSI CEB Server Motherboard $319 supports 16GB ram
    Cool Master Stacker $154
    Rosewill RP600V2-S-SL 600W SLI Ready $70
    Linux OS , Microsoft Windows XP Professional X64 Edition Single Pack $139

    $2316


    I know what i will pick :!
  • grtgrfx - Monday, December 21, 2009 - link

    And which one will run cooler and be completely silent when you push it? Ah, the Mac will. High quality build, excellent components, superior GUI: $2,500. Peace and quiet while working: priceless.
  • Nimbo - Tuesday, September 12, 2006 - link

    Anand did compare prices in its second article about Mac pro
    http://www.anandtech.com/showdoc.aspx?i=2816&p...">http://www.anandtech.com/showdoc.aspx?i=2816&p...
    Mac Pro: $2499
    Dell equivalent: $3110
    Home Built: $2390
  • tuteja1986 - Wednesday, September 13, 2006 - link


    MAC PRO $2499

    Two 2.66GHz Dual-Core Intel Xeon
    1GB (2 x 512MB)
    250GB 7200-rpm Serial ATA 3Gb/s
    NVIDIA GeForce 7300 GT 256MB (single-link DVI/dual-link DVI)
    One 16x SuperDrive
    Apple Keyboard and Mighty Mouse - U.S. English
    Mac OS X - U.S. English

    - not include :
    Server OSX
    Monitor
    Modem
    Fiber Channel Cards
    Wireless Option
    Any Apple Software
    Or even Apple Care Protection Plan (APP)

    Now if your doing loads of Video Editing/encoding.. one Gigabyte ram is crap all and 1 250GB is to little...

    Two 2.66GHz Dual-Core Intel Xeon
    4GB (4 x 1GB)
    500GB 7200-rpm Serial ATA 3Gb/s
    500GB 7200-rpm Serial ATA 3Gb/s
    500GB 7200-rpm Serial ATA 3Gb/s
    ATI Radeon X1900 XT 512MB (2 x dual-link DVI)
    One 16x SuperDrive
    Apple Wireless Keyboard and Apple wireless Mighty Mouse - U.S. English
    Mac OS X - U.S. English
    $4,909.00

    - not include :
    Server OSX
    Monitor
    Modem
    Fiber Channel Cards
    Wireless Option
    Any Apple Software
    Or even Apple Care Protection Plan (APP)

    At Mac Customize they don't give you a chose of additional 250GB hard drive just 500GB Hard drive

    Now Windows/Linux PC is where it shins :


    Intel Xeon 5150 Woodcrest $729 : $1458

    Western Digital Caviar SE16 WD5000KS 500GB 7200 RPM SATA 3.0Gb x3 $189 = $567

    HIS/Sapphire/Asus Radeon X1900XT 256MB GDDR3 PCI Express x16 CrossFire Video Card - $300-$320 could way more cheaper with rebate

    NEC/LG/Sony/Lite-on 16X DVD±R DVD Burner Beige IDE Model ND-3550A $30

    hermaltake Armor Series VA8000BWS Black Computer Case - Retail $149

    Rosewill RP600V2-S-SL 600W SLI Ready $70

    Logitech Cordless DesktopS Keyboard Mouse $58

    Creative Sound Blaster $40

    Windows XP PRO 64bit $139

    TYAN S5370G2NR-RS Dual Socket 771 Intel 5000V SSI CEB Server Motherboard $320

    Crucial Technology 1GB 240-Pin DDR2 FB-DIMM DDR2 667 $170 x 4 = $680

    $3811USD


  • tech010101x - Wednesday, September 13, 2006 - link

    You do realize that the Mac Pro comes with all the drive sleds... you can add the WD5000KS drives yourself later. You can also add memory yourself.

    Doing it this way... ordering the Mac Pro with 2 x 512MB RAM and 1 500GB drive costs: $3009.
    Add in the RAM you quote: 4 DIMMS at $680 + 2 WD5000KS at $189 @ = $4067
    Total difference then is a mere $256.

    You are still missing firewire 400 and 800 and firewire target disk mode.
    The power supply in the Mac Pro is much beefier.
    Windows XP 64 bit is a mess.

    And then we get to the fact that you are comparing a retail price to a non-retail price, comparing a bunch of parts to a fully assembled system, and you are leaving out the shipping issue altogether. Certainly, it is possible to pay $4,909 + tax for the Mac Pro. It is also very possible to pay far less.

    The arguments in this regard are less about Apple and more about homebuilt vs. Tier 1 vendor. You might as well be comparing against IBM Intellistations, Sun Ultra 40's, or HP xw8400's. You'd appreciate it not being a homebuilt when you have to manage many of these over time.

    A 5% discount on the base system + the extra RAM and drives added later is $3917, or $106 difference. I usually get bigger discounts than that 5% on systems like this.

    In the end, if you aren't interested in using Mac OS X at all, the Mac Pro is probably not for you. It is the complete suite... from the hardware (including the nice boot menu, target disk mode, etc), the software (Mac OS X, iLife, platform user experience, etc.), solutions integration (Xsan costs $999 vs. ADIC StorNext at $4k for SAN filesystems), on through to applications (Final Cut Studio, Shake, etc.).
  • Calin - Wednesday, September 13, 2006 - link

    Windows XP Professional supports two processors (cores) out of the box. Put a Windows 2003, and see where you get...
  • Sunrise089 - Tuesday, September 12, 2006 - link

    and even that "home built" price was without a case, OS, or power supply.
  • Calin - Wednesday, September 13, 2006 - link

    As for the OS, you could "migrate" your Windows XP - with one small problem - XP is 1-2 processors only, this configuration would have 4 cores...
    So, add another ... for Windows 2003
  • JarredWalton - Wednesday, September 13, 2006 - link

    Sorry, but that's wrong. XP is 1-2 *sockets* only. XP home will work with a dual core or even quad core CPU just fine, and XP Pro works with all 2S workstation setups without difficulty. Microsoft modified the way they count CPUs when dual core first came out.

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