Porblem with fans

[Celious]

So i put all my internals in a new case (Cit geforce).

my pc didnt turn on and then i realised i hadn't plugged the fan cables in.

When i plugged the cables in the pc turned on but the fans wont,

there is a fan cable that i can plug in and the fans start working but it instantly shuts off my pc

 

[Windows7ge]

That sounds like it could be any number of causes. Let's start simple. Check the 20+4 pin connector and the CPU power connector. Make sure they're fully inserted.

[Celious]

any other possible problems?

[Windows7ge]

1 minute ago, Celious said:

any other possible problems?

Well:

CPU fan not mounted properly.

Possible static discharge during swamping resulting in hardware damage.

RAM or expansion card not seated properly.

Motherboard standoff installed where it shouldn't be.

Tabs from the I/O sheild jammed inside a USB port or any other port.

Front panel devices plugged in wrong.

Damaged PSU.

...Those are off the top of my head but I figured "Troubleshooting 101: Start with Simple Solutions"

[Celious]

i fixed it it was just some more cables not plugged in but thanks for your help anyway