Hello and happy new year everyone!
I have a Lenovo Y530 (NM-B701 rev1) notebook with a frustrating problem.
It's shuts iftself off after pressing the power button. I have no POST screen, only power led and keyboard light. Same symphtomes on AC and on Battery.
Things I tried:
- General cleaning and repasting, reseating RAM modules
- Reset CMOS
- Reprogram BIOS with a programmer.
- Checking main rails with Multimeter.
Only suspicious thing I found was that the dual MOSFET on the 20V rail had 25.5V, so I replaced this two mosfets with new ones, but the 26.5V is still there.
Could it be the culprit?
I have a Lenovo Y530 (NM-B701 rev1) notebook with a frustrating problem.
It's shuts iftself off after pressing the power button. I have no POST screen, only power led and keyboard light. Same symphtomes on AC and on Battery.
Things I tried:
- General cleaning and repasting, reseating RAM modules
- Reset CMOS
- Reprogram BIOS with a programmer.
- Checking main rails with Multimeter.
Only suspicious thing I found was that the dual MOSFET on the 20V rail had 25.5V, so I replaced this two mosfets with new ones, but the 26.5V is still there.
Could it be the culprit?
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