Feeds

The Mac that saved Apple (and Steve Jobs)

Deep inside the Bondi Blue

Mobile application security vulnerability report

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)

Boost IT visibility and business value

More from The Register

next story
Report: American tech firms charge Britons a thumping nationality tax
Without representation, too. Time for a Boston (Lincs) Macbook Party?
iPad? More like iFAD: We reveal why Apple ran off to IBM
But never fear fanbois, you're still lapping up iPhones, Macs
Apple gets patent for WRIST-PUTER: iTime for a smartwatch
It does everything a smartwatch should do ... but Apple owns it
Apple orders huge MOUNTAIN of 80 MILLION 'Air' iPhone 6s
Bigger, harder trouser bulges foretold for fanbois
Microsoft takes on Chromebook with low-cost Windows laptops
Redmond's chief salesman: We're taking 'hard' decisions
For Lenovo US, 8-inch Windows tablets are DEAD – long live 8-inch Windows tablets
Reports it's killing off smaller slabs are greatly exaggerated
Cheer up, Nokia fans. It can start making mobes again in 18 months
The real winner of the Nokia sale is *drumroll* ... Nokia
Microsoft unsheathes cheap Android-killer: Behold, the Lumia 530
Say it with us: I'm King of the Landfill-ill-ill-ill
prev story

Whitepapers

Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
Reducing security risks from open source software
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Consolidation: the foundation for IT and business transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.