Lenovo M58 Think center Desktop shutdown after Fan speeds up

[sureshbobby]

Dear Friends,
I have a problem with lenovo Think center Desktop M58 Model, when i start the system fan goes loud and shuts off. please help me

[stj]

Re: Lenovo M58 Think center Desktop shutdown after Fan speeds up

it thinks it's overheating.
maybe a bad cpu connection?
or a badly fitted heatsink?

[sureshbobby]

Re: Lenovo M58 Think center Desktop shutdown after Fan speeds up

I checked it already connected correctly. No problem witu that

[ratdude747]

Re: Lenovo M58 Think center Desktop shutdown after Fan speeds up

Not overheating. it's not POSTing far enough to drop the fan speed; they spin them up high as fans won't start at low speed (static friction, etc).

Are all the caps good? PSU good? 12V+ connector plugged in?

[Uranium-235]

Re: Lenovo M58 Think center Desktop shutdown after Fan speeds up

some bios's start fans at the highest speed, and when it reaches a certain point in post, it slows them down to quiet them. If the post does not get to this point, they will stay at max. Check your memory, make sure there is no bad caps or something else to keep it from booting fully