Toshiba Qosmio G40 Error Code A2h: 1R05-P1V Voltage Below 0.89V on Boot

Question

Hello i have a toshiba qosmio g40 when I press the Power button it signals an error code of A2h ( 1R05-P1V voltage is under 0.89V when the computer is booting up.) i cant find which component this is.

lisek · Accepted Answer

This 17 model based on - Intel Core 2 Duo T7700 (2.4 GHz, second-level cache 4 MB, FSB 800 MHz) - Intel PM965 Express chipset - NVIDIA GeForce 8600M GT 512 MB, with support for TurboCache technology up to 2303 MB (with 4048 MB RAM) You need to look into the available SM based on the same PM965 chipset There may be a problem with the power supply PCH or Nvidia graphics Is free Maintenace Manual Qosmio G40 - but no electrical schematics, then in 2007 Toshiba did not give them - and No *.bardview ... good luck

lisek · Accepted Answer

Not necessarily in PCH.
Look in the included SM under Tecra 11A (on the HM55 chipset)
- mobo Toshiba Tecra A11 > (FHNSY1)
- there is this voltage described as 1R05-P1V
- look at what elements it is connected with

Mobo Qosmio G40 is orginal pcb from Toshiba ( FTUSY4)

lisek · Accepted Answer

Or chipset North or Nvidia chip

Unfortunately this is a very broad error, Toshiba services depot ... replace the motherboard
* For starters, try if you do not help > restore or update the BIOS, there are no more options...

_car123 · Answer

The charger outputs the correct voltage of 15V and the same error occurs on battery

lisek · Answer

you probably have a short circuit in the line (1R05-P1V ) or a damaged PCH or ...?
The absence of SM makes it impossible to accurately determine " where ?
The motherboard is on your hands/table
- you need to gradually disconnect the "receivers (1R05-P1V) " in this line

_car123 · Answer

When you say (There may be a problem with the power supply PCH) you mean the power that is supplied to the PM965 might have a problem

edit : I found some components near the PM965 chipset that seem to be in the wrong place

Added after 8 [hours] 49 [minutes]:

_car123 · Answer

I found the problem it was the 2 components. I put them back in the correct place now the laptop powers up but it says PCI Express error.

_car123 · Answer

I can't get into the BIOS to update it or restore it. I don't know if I'm pressing the wrong key. I can only get to the boot menu but if I select something It says PCI Express error.

_car123 · Answer

Forgot to update but the PCI Express error was the GPU failing.

_car123 · Answer

The problem was caused by two components on the motherboard being out of place. After putting them back in, everything is working fine.

[Solved] Toshiba Qosmio G40 Error Code A2h: 1R05-P1V Voltage Below 0.89V on Boot

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