MacUpgrades.co.uk offers a wide range of fixed price upgrades and repairs for your Apple computers. You can drop in to our offices in Sawston, Cambridge or if you are not local you can either have us collect or send in your computer yourself. Sameday fitting is available for most items, contact us for details. We also offer on site installation services and training on your premises.
Enter your serial number into the box below for specific upgrades for your machine. Each upgrade has been tested in the machine we list it for. Compatability is 100% guaranteed or your money back.
How to find your serial number in software
You can find your Mac's serial number in Apple System Profiler: Select the Apple Menu > About This Mac, then (depending on the version of OSX you are running) click the System Report button or the More Info button. This brings up System Profiler, and on the Hardware Overview that is displayed by default you should see your serial number, and be able to copy/paste it. The procedure does vary slightly between different versions of OSX.
If you can't boot your Mac
If your Mac is not working, the serial number is printed on the computer casing but the location varies. Here are the main locations of serial numbers on Apple computers.
Unibody MacBook Pro - Laser etched onto the base.
MacBook, Early MacBook Pro, PowerBook G4 - Inside the main battery bay. Remove battery to locate.
iBook (White) - Under the keyboard. To lift keyboard, pull back on the release tabs between the F-keys.
Intel iMac, iMac G5 - Underside of the foot/stand.
iMac G4, iMac G3 - Underside of the iMac.
Mac mini - On the underside of the Mac mini.
Mac Pro 2006-2012 - On rear of machine near graphics card ports.
PowerMac G5 - On lower chassis under side panel. To remove side panel, lift lever on rear of Mac.
PowerMac G3, PowerMac G4 - Label on the back of the Mac.
Your Mac's Model Identifier can be found in System Profiler. You can use the drop-down menus above to be taken to a page that displays upgrades specifically for your exact model.
This tool is also available on its own page, with a list of all Model IDs here.
COVID Update: Online orders and mail-in repairs/upgrades are happening as normal. Collection and drop-off are operating by appointment - please call us on 01223 833 412 to book a slot.
Power Macintosh G4 1.25 DP (FW 800)
Here you can find the exact specifications of this Mac, along with guaranteed compatible upgrades for it, and an upgrade tool to let
you quickly build an order which can be saved
for later or shared with a friend.
Model: Power Mac G4 - FireWire 800
Part Number: M8840LL/A
Model Identifier: PowerMac3,6
Model Number: M8570
Max Operating System Version: OS X 10.5.8 (Leopard)
Earliest Supported OSX Version: OS X 10.2.3 (Jaguar)
Support for MacOS 9 and Earlier: Cannot boot into MacOS 9, but under 10.4.11 and earlier can run OS 9 Apps under Classic Emulation.
CPU Speed: 1.25GHz
RAM Type: DDR PC2700 DIMM 333MHz
RAM Slots: 4
Max RAM by Slot: 4 x 512MB
Maximum RAM: 2GB
RAM Pairing: Modules may be installed individually
Drive Connection: IDE
Drive Platter Size: 3.5"
Device Connectivity: USB 1.1, FireWire 400, FireWire 800
Here are our list of fixed cost repair and installation services for this Mac. All machines for repair or upgrade can either be shipped to us (we can arrange collection if desired), or you are welcome to drop the machine into our offices in Sawston, Cambridge. We have been doing Apple Mac repairs since 2001, you can be assured of a complete, speedy, good value and professional service.