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U – Need to know type of some motherboard detail. This helped me too. After my brother soldered the broken part the laptop didn’t work. IdeaPad U fan not running and overheating. Message 2 of 8. I afraid that there is some problem with the motherboard design – in the thread where I posted my first message the topicstarter described exactly same issue: I will delegate the soldering to my brother which is electronics engineer and I will also show him your message – unfortnately informaton that you provided doesn’t tell me too much.

I have this question too. Please note, that my motherboard is one with a nVidia graphics chip on qo4466 and this detail isn’t pesent on other boards. The detail melted so I can’t read it’s marking.


I found the schematic diagram of the motherboard here. Message 3 of 8.

Lenovo is committed to environmental datqsheet from operations to product design and recycling solutions. My U went out of order because that some detail on the motherboard is burnt.

4x Alpha & Omega AO 30V N Channel MOSFET SOIC-8 IC – ChipBay

Going forward I must admit that I very pleased by their service. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Our commitment to the environment Lenovo is committed to environmental leadership from operations to product design and recycling solutions.

Message 8 of 8. Message 1 of 8. I already ordered AO and expect it to datashset in about two weeks. I contacted couple of them and one taobaoring.

OK, as promised here is the end of the story. Hello, My U went out of order because that some detail on the motherboard is burnt. Ideapad u official drivers.

AO4466 Datasheet

Hope that I’ll be able to replace it and to solve the issue without paying for the new MoBo almost half of what I paid for the laptop. Hi guys, I have a Us Laptop with a busted fan. By browsing this website, you consent to the use of cookies. Thank you very much. See our Sustainability Report. So now it is working again.


Forums Knowledge Base Blogs. Reasons are unknown to me – maybe some other part was damaged as well, nobody knows. Register Sign In Help. Can some one help me find a pait.

Message 5 of 8. Today I reassembled my notebook. I ordered also a set of screws. This website uses cookies. Message 7 of 8. Lenovo U not y i7 hdd upgrade.

I heard about Chinese site taobao. I would be very glad if somebody can provide me the type of the detail which is marked as PQ on the motherboad so I will try to buy and replace it by myself. Seen their photos on eBay. The detail is under the keyboard – you only need to unscrew three screws marked with keyboard pictogram in order datashedt remove it.

Message 6 of 8. Message 4 of 8.

AO4466 MOSFET. Datasheet pdf. Equivalent

I’ll post when there is an update. I wrote about this issue more than a month ago but nobody answered, probably because it was a comment in some old thread. So I would like to ask for a help in the separate topic.