Feeds

The Mac that saved Apple (and Steve Jobs)

Deep inside the Bondi Blue

Security for virtualized datacentres

The mysterious mezzanine

Soon after the iMac shipped, enterprising geeks took theirs apart to find out what that plate below the port array was hiding, and were surprised to find that on the underside of the logic board there was a connecter labeled "Mezzanine" that Apple hadn't trumpeted in its promo materials or spec sheets.

The slot turned out to be a proprietary PCI connector — the iMac's Motorola XPC106 bridge chip (aka "Grackle") supports PCI. Its usage by Apple was, to my knowledge, never officially confirmed, but the word on the street is that Apple techs used it to test, monitor, and diagnose the logic board and other system functions.

Bondi Blue Rev. B iMac - mezzanine slot

This slot has absolutely nothing to do with Nicholson Baker's novel (click to enlarge)

A PCI slot in an otherwise expansion-hobbled iMac begged for third-party devices to be plugged into it — but both the cramped location of the slot and its access difficulty for the average user kept the upgrade aftermarket small.

That said, the now-defunct Formac* made a TV tuner–SCSI adapter mashup called the iProTVRAID that fit into the slot. Another now-defunct outfit, Micro Conversions, was said to have announced a mezzanine slot version of its Game Wizard 3DFX VooDoo graphics card, though I've been unable to find out if that card ever shipped.

Nestled next to the mezzanine slot on the bottom of the logic board, by the way, lived the 56Kbps modem I mentioned earlier, powered by a Rockwell L2800-38 and R6764-62 chip pairing.

Bondi Blue Rev. B iMac - modem card

Trust me: there was a time when 56Kbps felt mighty, mighty fast (click to enlarge)

When stripped of the daughter card and its cage, plus the modem, the Bondi Blue iMac's logicboard is a clean design with no "whoops" do-over traces — at least none that I could spot.

Bondi Blue Rev. B iMac - logicboard, top

The top of the Bondi Blue iMac's logic board, with the ATI Rage Pro to the left of center (click to enlarge)

Bondi Blue Rev. B iMac - logic board, bottom

The bottom of the logic board, with the mezzanine slot to the right of center (click to enlarge)

New hybrid storage solutions

More from The Register

next story
Apple iPhone 6: Missing sapphire glass screen FAIL explained
They just cannae do it in time, says analyst
Slap my Imp up: Bullfrog's Dungeon Keeper
Monsters need to earn a living too
Oh noes, fanbois! iPhone 6 Plus shipments 'DELAYED' in the UK
Is EMBIGGENED Apple mobile REALLY that popular?
Apple's big bang: iPhone 6, ANOTHER iPhone 6 Plus and WATCH OUT
Let's >sigh< see what Cupertino has been up to for the past year
The Apple Watch and CROTCH RUBBING. How are they related?
Plus: 'NostrilTime' wristjob vid action
Apple's SNEAKY plan: COPY ANDROID. Hello iPhone 6, Watch
Sizes, prices and all – but not for the wrist-o-puter
Apple Pay is a tidy payday for Apple with 0.15% cut, sources say
Cupertino slurps 15 cents from every $100 purchase
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
Top 5 reasons to deploy VMware with Tegile
Data demand and the rise of virtualization is challenging IT teams to deliver storage performance, scalability and capacity that can keep up, while maximizing efficiency.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.