Can i replace my psu 20 pin with a newer 24 pin unit?

https://forums.lenovo.com/t5/Lenovo-E-H-K-M-Q-Y-and-ErazerX/Lenovo-Ideacentre-700-Series-Power-Supply-Unit-PSU-Replacement/td-p/3321568

Yes, in almost all cases, a 24 pin PSU can still work on a 20 pin board, the 24 pin connector usually splits at the 20 pin point and will then fit the board socket. Just make sure whatever PSU you buy can do this and you'll be fine. The more important thing is to make sure all the other connectors are the correct style for your board.

Most of the 24 pin PSU Have the +4 pins colored in green. The green part can be removed by un-engaging two clamps.

Test your PSU or replace it if your power supply units fan is not working your PSU is faulty

Hi davids38,

I really recommend getting a 24-pin adapter Power Supply Unit (PSU). I had this problem once and did purchase a 24-pin adapter for my 20-pin PSU but my computer wasn't stable (random reboots and lock up). I purchased a 24-pin PSU and my computer worked fine ever since. Hope this helps.

Thanks

on the newer psu's (power supply units) they are labeled. if they are not there is a basic rule. if it fits the socket without forcing it, use it there. there are many 4 pin plugs on a psu. these are all identical and all are exactly the same. they can be used anywhere a 4 pin connector is needed. newer psu's also have 6 pin, 8 pin and sata plugs. 6 pin and 8 pin are generally for video cards that are pcix sata pugs are for any sata drive, like a dvd or a hard disk. also there is a 24 pin or a 20 + 4 pin connector. this goes to the mother board.

i presume that is a pentium 4 or newer motherboard. you will need a power supply that has at least one or two of the small four pin connectors as well... generally if it has that the extra four pins slides onto the 20 pin connector on one side and that makes up your 24 pin connection.

Hi,

You need to connect both 20-pin and 4-pin connector to *********** board. Your 4-pin connector is located between your CPU and a I/O connectors.

If you did it right first time, check if you have anything shorted on your board because your old P/S could go bad for reason.

Good luck!!!

your connector is of two part.it has total of 24 pin, can be divided into 20 and 4 pins.connect  20 pin  in your mother board .switch on ur psu and connect 4 pins to another port.

please check whether there is burning in the motherboard due to this there is no switching in the motherboard. plz get the motherboard repaired. their is no problem in replacing the 20-pin psu