Search results

Hello! can you provide some guidance on how to check the PSU (614-0446)? Thanks

Same issue, stuck on loading screen

I omitted an important part of the issue, the laptop stucks on loading logo when booting from USB Mac OS installer, it seems is not recgonizing the internal HDD, tested with SSD with high sierra and same. Tried that SSD with High sierra via USB and doesnt detect/boot.

That one says 00165, is that ok?

Hello I tried with a clear ME from vinafix and same issue, tried different RAM Sticks and same. Any help? Thanks in advance.

This board came in for no power issue. After some analysis I know the issue is power button... However I know these board turn on automatically when no battery connected and you plug in the charger. This one doesnt, it needs to trigger the pwr button but this only happen if I unplug and plug...

Any suggestion?

I checked with osciloscope all voltages big coils and I couldnt notice anything between no battery and with battery (specifically when image distorted). would you recomend change charger, mosfets or something? (At this moment I think this is only for study since I think I will order a...

I tested with 2 original, status: Normal batteries and same issue... Any suggestion? Is there any voltage/signal related to the RAM that could be changing with and without battery?

Hello I can confirm now that the issue is also when loading the SO and/or in boot menu BUT I noticed that the issue is only with battery connected! I will try another battery and let you know, in the mean time, any comment/suggestion on this one? o_O

I am struggling to get the correct ASD OS, some more comments: 1. When entering boot menu, the image on the screen distorted once and the computer restarted (just like when I entered the password to enter the user). Could this change the assumption of the faulty IGPU? 2. I got the ASD OS...

Hello, I dissabled the GPU with 2dude method on this one like 5 months ago. Now came back with distorted image after entering password (when loading OS and on welcome screen looks ok) and beeps 3 times... I tried wieht different ram sticks on both slots and same, tried doing some preassure...

Fixed by changin DC in board...

By checking SMC DCIN, I noticed that SMC_BC_ACOK: 3.3V BUT IT has a pulse to 0 every 400mS (PP3V42_G3H is stable) SMC BC AC OK pulsing doesnt happen with the PSU

SMC BYPASS works with original 85w adapter (board turn on and fan full speed)

1 CHGR_AGATE: 0V 2 CHGR_DCIN: 15.6, 3 CHGR_ACIN: 3.9V 9 CHGR_AMON:0V 12 PP3V42_G3H: 3.46 13 CHGR_RST_L: 3.46 14 SMC_BC_ACOK: 3.3V 15 CHGR_BMON: 0V 16 CHGR_BGATE: 5.2V 17 CHGR_CSO_N: 12.53 19 PP5V1_CHGR_VDD: 5V 20 PP5V1_CHGR_VDDP: 5V 27...

Replaced Q7080 and same Issue

R7080 98.7K R7081 62K R7085 353.4K R7086 331.6K

Hello I tried with known good 85W adapter and no battery installed, any help?

Solution found... When connecting the battery it boots ok with the TP connected. (o_O:cautious:) (I read this one: https://boards.rossmanngroup.com/threads/820-00163-15-inch-restarts-when-trackpad-is-connected.60868/) One more question, I saw that the GPU2 sensor shows 129°, something to be...