hi everyone, trying to fix this motherboard from a lenovo laptop, i don't have the schematic neither the boardview which seems non existing anyway, i found that k 272 N thing blown up and i would like to replace it, issue is i have absolutely no idea with what to replace it, does anyone knows what is it ?
doaost6mb6fo rev:f component issue
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Re: doaost6mb6fo rev:f component issue
Post the full laptop model number and the motherboard part number again, doaost6mb6fo doesn`t exist. Its a quanta board so should start with DA0 -
Re: doaost6mb6fo rev:f component issue
indeed excuse me, the motherboard is a da0st6mb6f0 rev F,
it is a lenovo ideapad flex 15 model 20309Comment
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by rouninHi everyone,
I'm working on a MacBook Air 2020 (A2337, board 820-02016) and running into a strange USB-C issue. I've gone through quite a bit of testing and part replacement, but I'm stuck — hoping someone here can shed some light.
🛠 Original Issue
The machine initially wouldn't negotiate 20V over USB-C — stuck at 5V.
Diagnosis showed PP1V5_UPC0_LDO_CORE shorted to ground.
I replaced U3100 (UF400) using a donor board (A2179), and the machine powers on fine now.
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I have a lenovo Legion pro 5 16ACH6H with AMD RYZEN 7 5800H and RTX3070,.
A weird issue has troubled me. If i power on off the laptop 20 times then only power LED will lit but no fan spin no display. At this stage gpu, vram. DDR voltage. 5v 3.3v 1.8v and the rest are present and cpu core is stuck at 0.84v.
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by piernovMy turn to post a build I guess, wasted way too much time on this one…
First proper SLI board I get so wanted to play around a little bit since I got a couple 8800 GTS.
Everything done with random parts I had lying around.
Specs :- CPU: Core 2 Quad Q9450
- RAM: 2x2GB KHX6400D2K2
- GPUs: 2x Nvidia GeForce 8800 GTS G80 320MB
- MB: P5N-E SLI
- PSU: Antec Basiq Power 550 Plus
- HDD: Hitachi Ultrastar A7K2000 1TB
- ODDs: DVD ROM, DVD RW
- Case: not sure
Cooling:- 92mm rear fan
- 120mm front fan
- Additional heatsink on southbridge
- Additional heatsink
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Channel: General Computer & Tech Discussion
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