When I turn on system I don't hear fan running.

Incredible! Thanks for confirming, Darko! Even though I now know it's there, I still can't really see it without a magnifying glass - and zero chance to replace it. That's incredible work for someone to replace. Well done ... and quite exceptional and lucky, I'd say. No one around here would touch that. How frustrating that such a microscopic flake can bring down an otherwise fine laptop.

May I know the specification of this tiny thing? Thanks!

Darko, I owe you a carton of beers (and one more to guys at your local shop) once I get to Serbia. You saved me a lot of time pinning out the problem. How to contact you? :)

Send an email to milivoe@gmail.com, we'll go from there.

On whether it's the resistor, a coil or a capacitor. Tech guy in the shop said it's a resistor. A CNS, CNT, CTS resistor... Some abbreviation with 3 letters. Can't remember exactly.

Sorin, on the Electronic Repair School YouTube channel, just reviewed some wireless solder iron and was desoldering things from some motherboard, and he may have misspoke, but he called a capacitor the thing looking a little bigger but closest in shape to our little thingy.

He was going from easiest to hardest, or maybe the biggest to the smallest, and was desoldering first what he called a coil, than a capacitor, and than another two small capacitors. But those two looked very different than the first one to me. Maybe he meant resistor but said capacitor.

Don't know. Not that well educated on electronic stuff. Just a fan. And a little bit eager to provide any help I can, knowing it's very hard to find good info on Vaio laptops. There's not that many of them around.

@darkosimic13735 Abbreviation could be SMD? (Stands for surface mount device, something that is soldered to the top of a board and not through a via).

If so, it completely explains how the difference it hard to tell. Some SMD resistors, capacitors, fuses, etc. look almost identical, and even under a microscope I can't tell the difference in many cases.

Well, that started to make a sense now, thank you for your investigation! In fact, a fuse is a thing you would actually expect in that place, no reason to place any resistors or coils there, as we all discussed above. I would eventually replace my 3ohm resistor with a fuse. Maybe :)

Had the same problem, got it fixed for $25 in the local shop. It was the small resistor on the motherboard, just maybe 5mm on the right side of the fan jack. You could barely see it. Just two 1mm soldering dots and 2mm resistor between them. Replaced.

Is this know issue? Also what local repair shop did you took it too. I live in chicago and we have MicroCenter.

Same problem - it's been periodic, now permanent. Spontaneous shutdown within minutes of booting up and/or logging in. Happens on AC power, on battery, either way. Seems an uncontrolled heat issue / motherboard failure. And apparently not nearly as uncommon as I would like : )

I checked the fan jack on the motherboard, but do not see what Darko suggests ... and even if it were there, cannot imagine a local shop around Seattle having that microscopic resister, or the patience to undo all of the screws holding the VJS142C11L together, let alone unmounting the motherboard screws/connectors to get at it and repair it for $25. So that must be a completely exceptional circumstance.

I had the same issue. May I know the specification of that tiny resistor?

@siumingchan 0603 type, 2...4 ohm works well!

I had enough luck that mine would die too fast for me to brick it. And I almost did it. I tried to reinstall Win11 once we manually started the fan, but fan stopped once the installation restarted laptop. And then it wouldn't continue the installation, it got corrupted.

So I turned on the hair fan on cold, highest speed, and directed it to the CPU, and then tried online installation on WiFi, still wouldn't work, somehow after 10 hours and around 150 tries, I got it to start installation on wired Internet. And then I got BIOS updated, still no help with the fan.

I watched a couple of days ago on Electronics Repair School YouTube channel how Sorin desoldered BIOS chip from a Lenovo Legion 5 laptop motherboard, had it in some clamp connected to a computer, installed BIOS that way, and soldered it back. Don't know if that's what's needed, but they do have a Discord chanel where he directs people who ask him questions on live streaming. Maybe try to get an easier solution there. They are based in London I think

We all should get together and file a Top Class Actions lawsuit against VAIO Corporation regarding this issue where they manufacture defective motherboards never tested fully. I had my for just 1 year brand new. It started acting up. I spended $1500 !#^& of trash.

@filter1985 couldn't agree more, Vikas. The level of corporate impunity today is horrendous.

Hi @christophe78112,

Does it keep shutting down if you use it with the charger connected to the laptop?

If you kept it in a box for 1.5 years without using it or more importantly charging the battery in it during this time, it wouldn't have done the battery any good.

Rechargeable batteries need to be maintained by charging them every so often otherwise they will gradually lose their charge holding capability and their ability to function correctly.

Create a battery report to check the condition of the battery.

When you have the report compare the Design Capacity value versus the Full Charge Capacity value. For a good battery they should nearly be the same.

You can check the condition as a percentage by using the formula Full Charge capacity value x 100 ÷ Design capacity value. If the battery charge value is <35% you may wish to consider replacing it.

This is not the fault of the manufacturer. Rechargeable batteries are designed to be used/charged and not left unused for that amount of time.

Hi there,

That is correct and understandable but the problem is not battery. I put the hairdryer on the coolest and fastest mode next to laptop fan which blow cold air into it and it was ON for 5-6 hours without shutting down anymore. The problem is Fan is not working at all and it quickly turns off in less than 1-2 minutes if on battery and less than a minute if on charger due to overheating. The same problem like everyone else. I live in Aus but if I were in US, I would definitely take legal action and encourage everyone else to do class action together against Vaio. They sold us a lemon and now just ignoring us!