Repair Actions/0003: Difference between revisions
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(Created page with "{{See also|Errors|Secondary Error Codes}} {{Note|This page is a technician's reference and is not intended to teach diagnosis and repair of electronic circuits.}} = Original Xbox 360 = ;ERROR_V_GPUCORE VREG_GPU_PWRGD is driven high by the V_GPUCORE controller as long as the rail is within tolerance. If V_GPUCORE ever drops out of tolerance, the signal is de-asserted, causing the SMC to enter EC_FATAL and the 0003 code to be displayed on the fro...") |
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{{See also|Errors|Secondary Error Codes}} | {{See also|Errors|Secondary Error Codes}} | ||
{{ | {{RepairNote}} | ||
This error has a different meaning on the [[Original Xbox 360]] vs the [[Xbox 360 S]] and [[Xbox 360 E]]. | |||
= Original = | |||
;ERROR_V_GPUCORE | ;ERROR_V_GPUCORE | ||
VREG_GPU_PWRGD is driven high by the V_GPUCORE controller as long as the rail is within tolerance. If V_GPUCORE ever drops out of tolerance, the signal is de-asserted, causing the [[SMC]] to enter [[Errors#EC_FATAL|EC_FATAL]] and the 0003 code to be displayed on the front panel. | VREG_GPU_PWRGD is driven high by the V_GPUCORE controller as long as the rail is within tolerance. If V_GPUCORE ever drops out of tolerance, the signal is de-asserted, causing the [[SMC]] to enter [[Errors#EC_FATAL|EC_FATAL]] and the 0003 code to be displayed on the front panel. | ||
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* Check if V_GPUCORE is shorted | * Check if V_GPUCORE is shorted | ||
* If it is, check each phase to localize short | * If it is, check each phase to localize short | ||
** Lift at least 1 pin of the inductors to isolate sections before checking | |||
** 2 phases | ** 2 phases | ||
* Check V_GPUCORE decoupling capacitors near and under GPU | * Check V_GPUCORE decoupling capacitors near and under GPU | ||
* If all components are fine but the short remains, replace the GPU | * If all components are fine but the short remains, replace the GPU | ||
== | == Enable and Power Good == | ||
* Everything in this section must be checked quickly, as the SMC will shut down power upon entering EC_FATAL | * Everything in this section must be checked quickly, as the SMC will shut down power upon entering EC_FATAL | ||
* Check VREG_GPU_EN_N | * Check VREG_GPU_EN_N pullup and switcher | ||
** If components are fine but | ** If components are fine but signal is missing, replace Southbridge | ||
* Check VREG_GPU_PWRGD | * Check VREG_GPU_PWRGD | ||
** If present, replace Southbridge | ** If present, replace Southbridge | ||
** If missing, check pullup | ** If missing, check pullup | ||
*** If pullup is fine, continue below | |||
== VREG Circuit == | == VREG Circuit == | ||
* Everything in this section must be checked quickly, as the SMC will shut down power upon entering EC_FATAL | * Everything in this section must be checked quickly, as the SMC will shut down power upon entering EC_FATAL | ||
* Check if V_GPUCORE | * Check if V_GPUCORE is present | ||
* If it is, replace the PWM driver and recheck PWRGD | * If it is, replace the PWM driver and recheck PWRGD | ||
* If it isn't, check each VREG phase and PWM driver | * If it isn't, check each VREG phase and PWM driver | ||
** 2 phases | ** 2 phases | ||
= S and E = | |||
;ERROR_V_3P3 | |||
VREG_V3P3_PWRGD is driven high by the V_3P3 controller as long as the rail is within tolerance. If V_3P3 ever drops out of tolerance, the signal is de-asserted, causing the [[SMC]] to enter [[Errors#EC_FATAL|EC_FATAL]] and the 0003 code to be displayed on the front panel. | |||
== Short Circuit == | |||
* Check if V_3P3 is shorted | |||
* If it is, check circuit components to localize short | |||
** Lift at least 1 pin of the inductor to isolate the rail before checking | |||
== Enable and Power Good == | |||
* Everything in this section must be checked quickly, as the SMC will shut down power upon entering EC_FATAL | |||
* Check VREG_V3P3_EN signal and pulldown | |||
** If pulldown is fine but signal is missing, replace Southbridge | |||
* Check VREG_V3P3_PWRGD | |||
** If present, replace Southbridge | |||
** If missing, check pullup | |||
*** If pullup is fine, continue below | |||
== VREG Circuit == | |||
* Everything in this section must be checked quickly, as the SMC will shut down power upon entering EC_FATAL | |||
* Check if V_3P3 is present | |||
* If it is, replace the PWM driver and recheck PWRGD | |||
* If it isn't, check VREG and PWM driver | |||
{{Debug and Repair}} | |||
Latest revision as of 14:25, 20 December 2023
| Note This page is a technician's reference. You will need Schematic and/or Boardview files to follow these steps. |
This error has a different meaning on the Original Xbox 360 vs the Xbox 360 S and Xbox 360 E.
Original
- ERROR_V_GPUCORE
VREG_GPU_PWRGD is driven high by the V_GPUCORE controller as long as the rail is within tolerance. If V_GPUCORE ever drops out of tolerance, the signal is de-asserted, causing the SMC to enter EC_FATAL and the 0003 code to be displayed on the front panel.
Short Circuit
- Check if V_GPUCORE is shorted
- If it is, check each phase to localize short
- Lift at least 1 pin of the inductors to isolate sections before checking
- 2 phases
- Check V_GPUCORE decoupling capacitors near and under GPU
- If all components are fine but the short remains, replace the GPU
Enable and Power Good
- Everything in this section must be checked quickly, as the SMC will shut down power upon entering EC_FATAL
- Check VREG_GPU_EN_N pullup and switcher
- If components are fine but signal is missing, replace Southbridge
- Check VREG_GPU_PWRGD
- If present, replace Southbridge
- If missing, check pullup
- If pullup is fine, continue below
VREG Circuit
- Everything in this section must be checked quickly, as the SMC will shut down power upon entering EC_FATAL
- Check if V_GPUCORE is present
- If it is, replace the PWM driver and recheck PWRGD
- If it isn't, check each VREG phase and PWM driver
- 2 phases
S and E
- ERROR_V_3P3
VREG_V3P3_PWRGD is driven high by the V_3P3 controller as long as the rail is within tolerance. If V_3P3 ever drops out of tolerance, the signal is de-asserted, causing the SMC to enter EC_FATAL and the 0003 code to be displayed on the front panel.
Short Circuit
- Check if V_3P3 is shorted
- If it is, check circuit components to localize short
- Lift at least 1 pin of the inductor to isolate the rail before checking
Enable and Power Good
- Everything in this section must be checked quickly, as the SMC will shut down power upon entering EC_FATAL
- Check VREG_V3P3_EN signal and pulldown
- If pulldown is fine but signal is missing, replace Southbridge
- Check VREG_V3P3_PWRGD
- If present, replace Southbridge
- If missing, check pullup
- If pullup is fine, continue below
VREG Circuit
- Everything in this section must be checked quickly, as the SMC will shut down power upon entering EC_FATAL
- Check if V_3P3 is present
- If it is, replace the PWM driver and recheck PWRGD
- If it isn't, check VREG and PWM driver