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[Build Log] iMac Lampshade Retrofit - Page 3

post #21 of 24
Quote:
Originally Posted by eovnu87435ds View Post

The Fittings, Part 1
Today my for-fitting Mini ITX motherboard arrived! I was a little busy, but I was able to do a quick check on how things might fit. Turns out, if the board is rotated 45 degrees, it fits no problem! It's also fine that the ports don't line up because I plan on de-soldering those ports and using the original iMac ones which will be fixed in place.
Here it is fitting! I may have to do something to ensure the stock ports will fit, but hopefully not much.
Warning: Spoiler! (Click to show)

IMG_8984.JPG
And here is a shot of the inside with the top on. The top is currently sitting square on the base, as if it were bolted together. as luck has it, it all fits!
IMG_8989.JPG
I will probably use some standoffs to raise the board high enough that the stock ports will fit underneath the board. Not exactly sure yet, but as always, stay tuned for updates!

Good update. Nice to see something fits. Can't wait for more! Need some ideas on what to do with mine

post #22 of 24
Thread Starter 
The Fittings, Part 2
I know it's been a while since my last update, I've been busy at work with the Presidential Conventions, and equally busy at home preparing to move into my apartment on the 21st. I actually did this work a little while ago, I just never got the chance to write the update. biggrin.gif Anyways, aside from my personal life, here is the regularly scheduled update:

So it turns out that my original fitting worked when the motherboard was on the base, but I wanted it raised a bit. Thankfully, everything still fit with my standoffs in place.
IMG_9004.JPG

Or so I thought... Turns out raising it led me to run into 2 problems...
1. Some of the standoffs in the dome blocked the power port
2. The PS/2 ports were too high up and clipped the dome, preventing it from closing all the way

Easy enough... just remove whatever's in the way!
IMG_9006.JPG

IMG_9007.JPG

Another thing I noticed, the hole in the bottom which is made for upgrading some of the iMac's ram and adding a Wi-Fi card, but is also the perfect size for an easily removable hard drive too!
IMG_9002.JPG

Now everything is in order and will fit! This has been a good look into what issues I may have when fitting my real motherboard, and now I know I have to pay attention to the size and position of the processor heatsink, as well as the memory. My basic requirement now is to have a motherboard with
no tall ports near the corners,
DVI or HDMI out(or both) (although it'd be really cool to find one with a mini DisplayPort that I could patch to the outside of the iMac.)

Speaking of patching ports... That's something that's on my todo list.
IMG_9001.JPG

It's time to dismantle the iMac logic board and harvest it for parts! This is made easy with my trusty heat gun.
IMG_9009.JPG

With a plate full of very toasty ports
IMG_9010.JPG

As for the power switch, since it is on the logic board with a bolt hole nearby, I decided to keep it on the logic board, and just cut the logic board out around the switch and bolt hole. thumb.gif
IMG_9011.JPG

I'm going to somehow glue these ports in place, and wire everything up with small extentions, or by soldering directly to the new motherboard.
IMG_9012.JPG

And here's another benefit of my standoffs, the ports all correctly fit underneath the motherboard!
IMG_9013.JPG


Overall, progress is progress, and I am getting closer to the point where I will have to start buying real hardware. Before I do though, I still need to do a few things...

Build a mount for the HDD
Find out what to do with the CD Tray(since I can no longer fit a dvd drive)
Rewire everything for the display
Figure out power
Figure out how to incorporate an amplifier so I can use the OEM Apple Pro Speakers
Figure out cooling
Find the right motherboard.

Until next time.
M8
(9 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i7-875k Asus Maximus Gene III Sapphire ATI Radeon HD 5870 EyeFinity 6 Sapphire ATI Radeon HD 5870 EyeFinity 6 
RAMHard DriveHard DriveOptical Drive
12 GB DDR3 Toshiba Q Series HDTS225XZSTA SSD Seagate Barracuda STBD2000101 Sony BWU-200S bluray burner 
OS
Windows 7 Ultimate x64 
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M8
(9 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i7-875k Asus Maximus Gene III Sapphire ATI Radeon HD 5870 EyeFinity 6 Sapphire ATI Radeon HD 5870 EyeFinity 6 
RAMHard DriveHard DriveOptical Drive
12 GB DDR3 Toshiba Q Series HDTS225XZSTA SSD Seagate Barracuda STBD2000101 Sony BWU-200S bluray burner 
OS
Windows 7 Ultimate x64 
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post #23 of 24
Thread Starter 
Parts Order!

Well, it's been quite a busy past several weeks(or months) but I can finally continue working on this project! I just placed a newegg order for my motherboard, wifi card, memory, and processor (as well as a PSU upgrade for my sig rig!). Here's what's going in the iMac:

GIGABYTE GA-Z77N-WIFI LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 Mini ITX Intel Motherboard: I have always heard great things about gigabyte boards, and just built 2 PCs for other people with them, I thought I'd try it out for myself! I know I'll have a bit of soldering to do, just like above, but it shouldn't be bad.

Intel Core i5-3570K Processor: Should offer plenty of speed for a HTPC. Built in graphics should work quite well, so I hear. It's not the coolest CPU around at 77w, but I think I'll be able to keep the temps down.

Crucial Ballistix Sport 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800): Your standard memory here... except that it's low profile to fit in the dome and runs at 1.35v, so the temps should be cooler here too.

TP-LINK TL-WDN4800 Wireless N900 Dual Band PCI Express Adapter: Even though the motherboard has built in wifi, since I am building this in an iMac, I'll have an OS X partition, and the broadcom radio in this adaptor is the same as that in real macs, so it works natively in OS X. I still need to pick up a cheap riser cable to relocate the card to somewhere that will be a better fit.

Still need to work out the power situation, cooling situation, and storage space situation. I'm thinking of going all SSD, since I recently got hooked and love it. A cheaper, slower SSD would still be pretty good. If I don't do that, I'll just get a SSD and a 1TB solid state drive, create an 8gb and remaining partition on the SSD, and a 120gb/800gb partition on the HDD. I'll use OS X to make a logical volume group on the large SSD partition and the small HDD partition, and install OS X to that. The fusion drive will keep the most used data on it and automatically shuffle less used data onto the HDD. As for windows, I'll install it on the large HDD partition, and use the 8GB SSD partition with intel smart-response as a large cache for windows.
M8
(9 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i7-875k Asus Maximus Gene III Sapphire ATI Radeon HD 5870 EyeFinity 6 Sapphire ATI Radeon HD 5870 EyeFinity 6 
RAMHard DriveHard DriveOptical Drive
12 GB DDR3 Toshiba Q Series HDTS225XZSTA SSD Seagate Barracuda STBD2000101 Sony BWU-200S bluray burner 
OS
Windows 7 Ultimate x64 
  hide details  
Reply
M8
(9 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i7-875k Asus Maximus Gene III Sapphire ATI Radeon HD 5870 EyeFinity 6 Sapphire ATI Radeon HD 5870 EyeFinity 6 
RAMHard DriveHard DriveOptical Drive
12 GB DDR3 Toshiba Q Series HDTS225XZSTA SSD Seagate Barracuda STBD2000101 Sony BWU-200S bluray burner 
OS
Windows 7 Ultimate x64 
  hide details  
Reply
post #24 of 24
looks awesome, about to do a PowerMac G4 mod
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