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crwdns2935311:0crwdnd2935311:0crwdne2935311:0 crwdns2935313:0iMac Intel 27" Retina 5K Displaycrwdnd2935313:0crwdnd2935313:0crwdne2935313:0

  1. iMac Intel 27" Retina 5K Display Teardown, iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:01crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 iMac Intel 27" Retina 5K Display Teardown, iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:01crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • How do you herd together 14.7 million pixels? You can ask nicely, or you can brandish some heavy-duty hardware. Inside the Retina 5K iMac:

    • 3.5 GHz quad-core Intel Core i5 processor, with Turbo Boost up to 3.9 GHz

    • 8 GB (2x4 GB) of 1600 MHz DDR3 RAM

    • AMD Radeon R9 M290X graphics processor with 2 GB of GDDR5 video memory

    • 802.11ac Wi-Fi + Bluetooth 4.0

    • PCIe-based SSD storage and SATA hard drive

  2. iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:02crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:02crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Not one to waste a good model number on just a single device, Apple again recycles A1419.

    • For a unique identifier, this is EMC 2806.

    • At the rear of the iMac, we find a plethora of I/O ports and a lone SDXC card slot:

    • Headphone jack / Optical digital audio output

    • SDXC card slot

    • Four USB 3.0 ports

    • Two Thunderbolt 2.0 ports

    • Gigabit ethernet port

  3. iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:03crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:03crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Fixers rejoice! The iMac Intel 27" Retina 5K Display retains the familiar, easily accessible RAM upgrade slot from iMacs of yore.

    • For those who require assistance replacing their RAM modules, Apple has attempted to provide some direction—that you get to see after you're halfway through the process.

    • For anyone who would rather be guided by glorious high-resolution images and lovingly crafted text, that's also available.

  4. iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:04crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:04crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:04crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    crwdns2935267:0crwdne2935267:0
    iMac Opening Wheel
    $7.99
    crwdns2942207:0crwdne2942207:0
    • We're pretty adept at slicing open iMacs with our ever-so-fancy pizza cutter iMac Opening Tool and our noble Plastic Card.

    • While the procedure still requires a steady hand and a willingness to replace the custom-cut, two-sided adhesive tape when you're done, it's otherwise pretty straightforward, and unchanged from previous models.

    • With the adhesive tape gone, we get our first peek at the hardware inside the Retina 5K iMac.

  5. iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:05crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:05crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:05crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • The first order of business is finding out whether this 5K display runs on actual magic, or something more susceptible to dissection.

    • This particular display was manufactured by LG Display. (So, magic is looking less likely.)

    • With a few twists of our screwdriver, a very long, very thin display board is revealed.

  6. iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:06crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:06crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:06crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Let's take a look at the hardware that allows 14.7 million pixels with a resolution of 5120 x 2880 on a 27-inch display:

    • Texas Instruments NH245 8-Bit Dual-Supply Bus Transceiver

    • Texas Instruments BUF16821 Programmable Gamma-Voltage Generator and Vcom Calibrator

    • Parade Technologies DP665 LCD Timing Controller

    • We assume this is an Apple modified version of the DP663 LCD Timing Controller

    • Texas Instruments TPS65270 Monolithic Dual Synchronous Buck Regulator

    • Texas Instruments TPS65168 High Resolution Fully Programmable LCD Bias IC for TV

  7. iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:07crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:07crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:07crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Barring the new display, the hardware inside the iMac Intel 27" Retina 5K Display looks much the same as last year's 27" iMac.

    • In fact, as we dive in deeper, we realize it is very nearly exactly the same.

    • We would have documented the logic board removal, but we already have! We'll be following last year's logic board guide—check it out and head back here while we skip ahead.

    • And after following the guide to the letter, we've got our findings on the differences inside:

    • The Retina 5K's display data cable is slightly wider—to support those extra pixels.

  8. iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:08crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Let's see what ICs this unsurprisingly familiar logic board is packing:

    • AMD Radeon R9 M290X GPU

    • Intel Core i5-4690 Processor

    • Just like last year, the CPU is not soldered to the logic board, and can be easily replaced (we just left it in the socket for the picture).

    • SK Hynix H5GC2H24BFR 256 MB GDDR5 SGRAM (256 MB x 8 modules = 2 GB total)

    • Delta Electronics 8904CF 143003

    • Intel DH82Z87 (Z87) Platform Controller Hub

    • Fairchild Semiconductor DE32GV

  9. iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:09crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Front side of logic board:

    • Broadcom BCM5776 Gigabit Ethernet Controller

    • Cirrus Logic 4206BCNZ Audio Controller

    • Intel DSL5520 Thunderbolt 2 Controller

    • LMF4S1EH 5BBCIG 47A6HPW

    • Microchip Technology 1428-7 420BE5A BMY System Management Bus (SMBus) Temperature Sensor

    • Intersil ISL6327 Enhanced 6-Phase PWM Controller

  10. iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:010crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:010crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • This looks to be the exact same SanDisk PCIe SSD as the one found in the MacBook Pro 13" Retina Display Late 2013.

    • Unsurprisingly, we find the exact same ICs:

    • SanDisk 05131 016G 16 GB NAND Flash (four on each side, total of 8 x 16 GB = 128 GB)

    • SK Hynix H5TQ2G63DFR 2 GB DDR3 SDRAM

    • Marvell 88SS91383 PCIe SSD Controller

  11. iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:011crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:011crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:011crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • The AirPort/Bluetooth card, identified by its model number BCM94360CD, is exactly the same as the one we encountered in last year's iMac Intel 27 inch:

    • Broadcom BCM4360KML1G 5G WiFi 3-Stream 802.11ac Gigabit Transceiver

    • Skyworks SE5516 Dual-Band 802.11a/b/g/n/ac WLAN Front-End Module

    • Broadcom BCM20702 Single-Chip Bluetooth 4.0 HCI Solution with Bluetooth Low Energy (BLE) Support

  12. iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:012crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 iMac Intel 27" Retina 5K Display Teardown: crwdns2935265:012crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • iMac 27" Retina 5K Display Repairability Score: 5 out of 10 (10 is easiest to repair)

    • RAM is user-replaceable without opening the case, thanks to the rear access door.

    • You can still replace the hard drive and CPU inside this machine, albeit with some adhesive cutting.

    • Components are modular and fairly easy to remove.

    • The glass and LCD are fused together, and there are no more magnets holding the glass in place.

    • You'll have to masterfully peel off the old double-sided sticky tape and apply new tape in order to reseal this iMac into original condition.

crwdns2944067:047crwdne2944067:0

This site is way cool! Is it easy to upgrade the CPU once inside?

Matt - crwdns2934203:0crwdne2934203:0

Absolutely! Same procedure as last year's model: iMac Intel 27" EMC 2639 CPU Replacement.

Andrew Optimus Goldheart -

Looks like you can upgrade to a new cpu (Haswell refresh probably) since it doesn't appear to be soldiered on

Daniel - crwdns2934203:0crwdne2934203:0

Thats unlikely, it depends on the mobo, i have not heard any confirmations of this so far.

adriandatriguiran -

Any idea what the part number is for the 8GB modules? This shows 4x2GB which is the standard. I ordered that memory configuration, expecting I can source new 8GB modules for less than Apple's price.

timothyweaver - crwdns2934203:0crwdne2934203:0

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