Xbox 360:GPU Retrofit: Difference between revisions
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Some GPUs can be retrofitted onto earlier boards. This page contains instructions for what changes need to be done in order for the retrofit to work. | Some GPUs can be retrofitted onto earlier boards. This page contains instructions for what changes need to be done in order for the retrofit to work. | ||
== Zephyr_B/C== | |||
Both variants of the 65nm GPU can be retrofitted onto a Zephyr_B/C motherboard. [https://www.youtube.com/watch?v=AjppSp-QWdc (Demo Video)] | |||
Guide By: Octal450 | |||
=== Instructions === | |||
''' GPU Table ''' | |||
{| class="wikitable" | |||
|- | |||
! Name !! Part Number !! GPU/eDRAM Lithography !! GPU/eDRAM Temp Target !! GPU/eDRAM Temp Critical | |||
|- | |||
| Zeus || X810478<br>X817793 || 65nm/90nm || 71C/73C || 90C/92C | |||
|- | |||
| Kronos || X820894 || 65nm/65nm || 75C/77C || 90C/92C | |||
|} | |||
''' Install GPU ''' | |||
* Replace 90nm U4D1 with 65nm | |||
''' Set VID 1.075V ''' | |||
* Remove 0 ohm R8B9 | |||
* Remove 0 ohm R8B10 | |||
''' Set FSB/PCIe/Memory Calibration ''' | |||
* FSB: | |||
** Remove 4.87K ohm R5R3 | |||
** Install 40.2 ohm as pullup to nearby V_GPUCORE | |||
*** You can either use a wire to the capacitor as shown, or scrape to expose V_GPUCORE voltage plane | |||
*** [[File:Fsbcal65.png|300px]][[File:Fsbcal65b.png|300px]] | |||
* PCIe: | |||
** Remove 1.47K ohm R4R3 | |||
** Remove 562 ohm R5D1 | |||
** Replace 2K ohm R5D2 with 49.9 ohm | |||
* Memory: | |||
** Replace 40.2 ohm R4R8 with 240 ohm | |||
** Replace 40.2 ohm R4T1 with 240 ohm | |||
''' Tie V_GPUPCIE to V_GPUCORE ''' | |||
* Remove IC U5C1 | |||
* Install jumper as shown to tie V_GPUPCIE to V_GPUCORE | |||
** Use a 28awg or thicker gauge wire | |||
** Be careful not to short to any nearby components or pads | |||
** Strongly recommended to cover jumper with PCB mask | |||
** [[File:Vpcietie65.png|300px]] | |||
''' Modify Firmware ''' | |||
* Use [https://github.com/Octal450/J-Runner-with-Extras/releases/latest J-Runner with Extras] to dump the nand | |||
* Change the type to Jasper 16MB, then RGH the console to get the CPU key | |||
* Set the required XeBuild options and build the image | |||
* Open the SMC Config Editor from the Nand menu, and update the thermal targets from the table above | |||
* Write the nand to the console | |||
== Falcon == | == Falcon == | ||
Both variants of the | Both variants of the 65nm GPU can be retrofitted onto a Falcon motherboard. [https://www.youtube.com/watch?v=GnZIr4XbvZ0 (Demo Video)] | ||
Guide By: Octal450 | Guide By: Octal450 | ||
Line 13: | Line 66: | ||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
! Name !! Part Number !! GPU/eDRAM Lithography !! GPU/eDRAM Temp Target | ! Name !! Part Number !! GPU/eDRAM Lithography !! GPU/eDRAM Temp Target !! GPU/eDRAM Temp Critical | ||
|- | |- | ||
| Zeus || X817793 || 65nm/ | | Zeus || X810478<br>X817793 || 65nm/90nm || 71C/73C || 90C/92C | ||
|- | |- | ||
| | | Kronos || X820894 || 65nm/65nm || 75C/77C || 90C/92C | ||
|} | |} | ||
''' Install GPU ''' | ''' Install GPU ''' | ||
* Replace | * Replace 90nm U4D1 with 65nm | ||
''' Set VID 1.075V ''' | ''' Set VID 1.075V ''' | ||
Line 46: | Line 99: | ||
''' Modify Firmware ''' | ''' Modify Firmware ''' | ||
* Use [https://github.com/Octal450/J-Runner-with-Extras/releases/latest J-Runner with Extras] to dump the nand, then RGH the console to get the CPU key | * Use [https://github.com/Octal450/J-Runner-with-Extras/releases/latest J-Runner with Extras] to dump the nand | ||
* Change the type to Jasper 16MB, then RGH the console to get the CPU key | |||
* Set the required XeBuild options and build the image | * Set the required XeBuild options and build the image | ||
* Open the SMC Config Editor from the Nand menu, and update the thermal targets from the table above | * Open the SMC Config Editor from the Nand menu, and update the thermal targets from the table above | ||
* Write the nand to the console | * Write the nand to the console | ||
== Jasper | == Jasper == | ||
The | The Kronos GPU can be retrofitted onto a Jasper motherboard. [https://www.youtube.com/watch?v=66CKvpfTKXU (Demo video)] | ||
Guide By: Octal450 | Guide By: Octal450 | ||
Line 61: | Line 114: | ||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
! Name !! Part Number !! GPU/eDRAM Lithography !! GPU/eDRAM Temp Target | ! Name !! Part Number !! GPU/eDRAM Lithography !! GPU/eDRAM Temp Target !! GPU/eDRAM Temp Critical | ||
|- | |- | ||
| | | Kronos || X820894 || 65nm/65nm || 75C/77C || 90C/92C | ||
|} | |} | ||
''' Install GPU ''' | ''' Install GPU ''' | ||
* Replace | * Replace Zeus U4D1 with Kronos | ||
''' Modify Firmware ''' | ''' Modify Firmware (Optional)''' | ||
* This step is optional, Zeus targets 71C/73C, there is no harm by running the chip a few degrees cooler | |||
* Use [https://github.com/Octal450/J-Runner-with-Extras/releases/latest J-Runner with Extras] to dump the nand | * Use [https://github.com/Octal450/J-Runner-with-Extras/releases/latest J-Runner with Extras] to dump the nand | ||
* Open the SMC Config Editor from the Nand menu, and update the thermal targets from the table above | * Open the SMC Config Editor from the Nand menu, and update the thermal targets from the table above | ||
* Write the nand to the console | * Write the nand to the console |
Revision as of 02:27, 8 April 2024
This page is intended for advanced technicians only. If you do not have advanced component and BGA rework skills, you will not be able to complete the process successfully. |
Some GPUs can be retrofitted onto earlier boards. This page contains instructions for what changes need to be done in order for the retrofit to work.
Zephyr_B/C
Both variants of the 65nm GPU can be retrofitted onto a Zephyr_B/C motherboard. (Demo Video)
Guide By: Octal450
Instructions
GPU Table
Name | Part Number | GPU/eDRAM Lithography | GPU/eDRAM Temp Target | GPU/eDRAM Temp Critical |
---|---|---|---|---|
Zeus | X810478 X817793 |
65nm/90nm | 71C/73C | 90C/92C |
Kronos | X820894 | 65nm/65nm | 75C/77C | 90C/92C |
Install GPU
- Replace 90nm U4D1 with 65nm
Set VID 1.075V
- Remove 0 ohm R8B9
- Remove 0 ohm R8B10
Set FSB/PCIe/Memory Calibration
- FSB:
- PCIe:
- Remove 1.47K ohm R4R3
- Remove 562 ohm R5D1
- Replace 2K ohm R5D2 with 49.9 ohm
- Memory:
- Replace 40.2 ohm R4R8 with 240 ohm
- Replace 40.2 ohm R4T1 with 240 ohm
Tie V_GPUPCIE to V_GPUCORE
- Remove IC U5C1
- Install jumper as shown to tie V_GPUPCIE to V_GPUCORE
Modify Firmware
- Use J-Runner with Extras to dump the nand
- Change the type to Jasper 16MB, then RGH the console to get the CPU key
- Set the required XeBuild options and build the image
- Open the SMC Config Editor from the Nand menu, and update the thermal targets from the table above
- Write the nand to the console
Falcon
Both variants of the 65nm GPU can be retrofitted onto a Falcon motherboard. (Demo Video)
Guide By: Octal450
Instructions
GPU Table
Name | Part Number | GPU/eDRAM Lithography | GPU/eDRAM Temp Target | GPU/eDRAM Temp Critical |
---|---|---|---|---|
Zeus | X810478 X817793 |
65nm/90nm | 71C/73C | 90C/92C |
Kronos | X820894 | 65nm/65nm | 75C/77C | 90C/92C |
Install GPU
- Replace 90nm U4D1 with 65nm
Set VID 1.075V
- Remove 0 ohm R8B9
- Remove 0 ohm R8B10
Set FSB/PCIe/Memory Calibration
- FSB:
- Install 40.2 ohm R4R9
- Remove 4.87K ohm R5R3
- PCIe:
- Remove 1.47K ohm R4R3
- Remove 562 ohm R5D1
- Replace 2K ohm R5D2 with 49.9 ohm
- Memory:
- Replace 40.2 ohm R4R8 with 240 ohm
- Replace 40.2 ohm R4T1 with 240 ohm
Tie V_GPUPCIE to V_GPUCORE
- Remove 0 ohm R4C31
- Install 0 ohm R4P13
- Install 0 ohm R4P14
- Remove IC U5C1
Modify Firmware
- Use J-Runner with Extras to dump the nand
- Change the type to Jasper 16MB, then RGH the console to get the CPU key
- Set the required XeBuild options and build the image
- Open the SMC Config Editor from the Nand menu, and update the thermal targets from the table above
- Write the nand to the console
Jasper
The Kronos GPU can be retrofitted onto a Jasper motherboard. (Demo video)
Guide By: Octal450
Instructions
GPU Table
Name | Part Number | GPU/eDRAM Lithography | GPU/eDRAM Temp Target | GPU/eDRAM Temp Critical |
---|---|---|---|---|
Kronos | X820894 | 65nm/65nm | 75C/77C | 90C/92C |
Install GPU
- Replace Zeus U4D1 with Kronos
Modify Firmware (Optional)
- This step is optional, Zeus targets 71C/73C, there is no harm by running the chip a few degrees cooler
- Use J-Runner with Extras to dump the nand
- Open the SMC Config Editor from the Nand menu, and update the thermal targets from the table above
- Write the nand to the console