lenovo z580 when press power switch it poweron for 1 sec then auto poweroff what should i check in this case
motherboard no : da0lz3mb6g0 rev g
motherboard no : da0lz3mb6g0 rev g
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Re: lenovo z580 poweron for 1 sec then auto poweroff
when press power the 1.5 ram volt present for a second but cpu volt not present -
Re: lenovo z580 poweron for 1 sec then auto poweroff
schematic attached i found that pq42 has 3.3 on the drain but no voltage on the source and the gate = 0 voltComment
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Re: lenovo z580 poweron for 1 sec then auto poweroff
What is the history of the unit ?
Remove all power. Meter in resistance mode.
Check the resistance to ground of each coil on the logic board. If the resistance is low, the current sense circuit may be tripping to power down the rail.
You may also have a defective cap on that leg of the circuit.Comment
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For Badcaps Readers, Please note that I am hopefully going to present this same message to Lenovo to see if they have any insight to the matter as well and figured to share the entirety here for clarification. The System is out of warranty as it is but does have the option to have it extended.
Model Information: T14 Gen 2 (Type 20XK, 20XL) Laptop (ThinkPad) - Type 20XK - Model 20XK0069US
Board: T14 Gen 2 (Type 20XK, 20XL) - Type 20XK.
System Hardware:
Processor: AMD Ryzen 7 PRO 5850U
Memory: 1x 16GB DDR4 3200 (Soldered on Board); 1x Crucial 32GB DDR4...09-08-2025, 10:46 PM -
Hi Everyone,
I have a Lenovo G50-80 that auto powers On when AC (Charger) is connected. I have checked the BIOS settings and there is no option to turn On or Off that feature as it is in some HP EliteBooks. I did update the BIOS and still same.
I then flashed the BIOS with a different bin file I downloaded here, It worked (didn't auto power on) for some time (after testing up to 5 times) but has now started again to auto power on when AC is connected.
The CMOS battery voltage is 3v. I have also tested with two main batteries as well. I would be glad if anyone... -
Device : Laptop
Brand : Lenovo
model: LENOVO B480
board: LA48 MB 11264-1M.48.4TD01.01M
Issue: auto power on , No display tried flashed bios same issue
S0_PWR_GOOD - 3.2v
PM_DRAM_PWRGD - 3.3v
VCC_GFXCORE - 0v
VCC_CORE -0.8
IMVP_PWRGD -3.3v
SYS_PWROK -0v
DDR3_DRAMRST# -1.5v
PCI_PLTRST# -3.3v
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Lenovo 3000 Series Schematic
Lenovo 3000 was a line of low-priced notebook and desktop computers designed by Lenovo Group targeting small businesses and individuals. It was replaced with the IdeaCentre and IdeaPad brands.
3000 C100 laptop with Braille keyboard
Lenovo 3000 C
C100, C200 - 15-inch XGA screen
Lenovo 3000 N
N100, N200 - 14.1-inch- and 15.4-inch- WXGA models
N500 - 15.4 inch screen.
Lenovo 3000 V
V100, V200 - 12.1-inch WXGA models
Lenovo 3000 G
G400, G410, G430, G450, G455, G510, G530, G550, and G560...10-04-2024, 06:05 AM -
This specification for the Lenovo IdeaPad 120S Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 120S boardview and 120S schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Lenovo IdeaPad 120S...09-06-2024, 06:40 AM
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