- Joined
- Sep 6, 2014
- Messages
- 34
- Motherboard
- Intel NUC D54250WYK
- CPU
- i5-4250
- Graphics
- HD5000
- Mac
- Classic Mac
- Mobile Phone
Hello, first post, first Mac, what have I done?
It all started with a complete, working iMac G4 I hauled out of the dumpster in my office building. It was 15"/800/512M/60G (and the screen being 1024x768), very inadequate by any standards. But this is so pretty I just have to make something working out of it.
First, a group photo: (click, original is way too large)
Anyway, what I have on hand:
15" iMac G4
20" iMac G5 for the screen and its inverter (pulled the wifi antennas out of it as well)
20" iMac G4 native power supply
20" iMac G4 neck
LG SATA DVD burner
What I have on order:
20" iMac G4 back cover and bezel
Intel NUC D54250WYK kit
What I am going to get:
4GB of DDR3L memory
A number of short USB3 and mini-DisplayPort extension cables to run to the base
The Molex DVI-D connector DremelJunkie mentioned
A picoPSU
Assorted hardware to hook everything up
I chose the Haswell NUC because it can run Mavericks with minimal work, and CAN take 12V, eliminating the need for an upconverter. This has been confirmed at an Intel forum. The Ivy Bridge NUCs still needs 19V.
Having read much of this site and DremelJunkie, I figure I am going to run into problems.
- I only have a 15" dome. Once the 20" screen is installed it may very well tip over. There doesn't seem to be any 20" dome listed on ebay at this time.
- I'll be removing the logic board in one piece hoping to sell it off to finance the mod, so I need something to fill the space and keep the connector plates in place.
- The 15" neck has wires that terminates in the same 0.1" pitch terminals ubiquitous among PCs, but the 20" ends are much smaller. Sigh. There will be much splicing.
What I learned so far:
As I said, Haswell NUCs can be fed 12V.
My G5 screen is LG LM201W01-A5 with TMDS feed and the 20" neck just plugs right in. Sweet!
This is the inverter side pinout of the inverter wire in the 20" neck:
Inset pic is from DremelJunkie for reference only.
Most inverters as I read have just 4 inputs: power, ground, enable, and dimmer. The yellow wire above is very likely the enable pin. I happen to have the right kind of connector laying around (had I not tossed my entire Compaq LTE5000 stock, I'd have much more at my disposal!), so I re-pinned it from 8P to 6P, closing the gap and leaving out the purple pin. This guy then plugs into the 9mm thick G5 inverter, which I'll try to fit anyway.
The 20" neck has the right connector on screen end only, and the 15" neck has the right connector on base end only, so no simple swapping wires, and I will need to splice.
I also read about Ersterhernd's problems on artifacts. I may slip a ferrite bead over the cables in case it really is EMI interference. I got an assortment on hand.
Let (another) build begin!
It all started with a complete, working iMac G4 I hauled out of the dumpster in my office building. It was 15"/800/512M/60G (and the screen being 1024x768), very inadequate by any standards. But this is so pretty I just have to make something working out of it.
First, a group photo: (click, original is way too large)
Anyway, what I have on hand:
15" iMac G4
20" iMac G5 for the screen and its inverter (pulled the wifi antennas out of it as well)
20" iMac G4 native power supply
20" iMac G4 neck
LG SATA DVD burner
What I have on order:
20" iMac G4 back cover and bezel
Intel NUC D54250WYK kit
What I am going to get:
4GB of DDR3L memory
A number of short USB3 and mini-DisplayPort extension cables to run to the base
The Molex DVI-D connector DremelJunkie mentioned
A picoPSU
Assorted hardware to hook everything up
I chose the Haswell NUC because it can run Mavericks with minimal work, and CAN take 12V, eliminating the need for an upconverter. This has been confirmed at an Intel forum. The Ivy Bridge NUCs still needs 19V.
Having read much of this site and DremelJunkie, I figure I am going to run into problems.
- I only have a 15" dome. Once the 20" screen is installed it may very well tip over. There doesn't seem to be any 20" dome listed on ebay at this time.
- I'll be removing the logic board in one piece hoping to sell it off to finance the mod, so I need something to fill the space and keep the connector plates in place.
- The 15" neck has wires that terminates in the same 0.1" pitch terminals ubiquitous among PCs, but the 20" ends are much smaller. Sigh. There will be much splicing.
What I learned so far:
As I said, Haswell NUCs can be fed 12V.
My G5 screen is LG LM201W01-A5 with TMDS feed and the 20" neck just plugs right in. Sweet!
This is the inverter side pinout of the inverter wire in the 20" neck:
Inset pic is from DremelJunkie for reference only.
Most inverters as I read have just 4 inputs: power, ground, enable, and dimmer. The yellow wire above is very likely the enable pin. I happen to have the right kind of connector laying around (had I not tossed my entire Compaq LTE5000 stock, I'd have much more at my disposal!), so I re-pinned it from 8P to 6P, closing the gap and leaving out the purple pin. This guy then plugs into the 9mm thick G5 inverter, which I'll try to fit anyway.
The 20" neck has the right connector on screen end only, and the 15" neck has the right connector on base end only, so no simple swapping wires, and I will need to splice.
I also read about Ersterhernd's problems on artifacts. I may slip a ferrite bead over the cables in case it really is EMI interference. I got an assortment on hand.
Let (another) build begin!