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Hardware => Hardware => Topic started by: kwfine on March 17, 2010, 01:22:46 AM

Title: should I plug the additional 4 pins to the Motherboard
Post by: kwfine on March 17, 2010, 01:22:46 AM

Hi all,

Recently I bought a new power supply of 550W.
When I tried to connect the 20 pins cord from the Power Supply to the motherboard,
I saw there was an additional 4-pin head going together with the 20-pin head, and I noticed the warning message: only for 24-pin Socket.
I do not know what this mean.
Still, I chose not to plug it (the additional 4-pin socket), turned my PC on,
and saw the windows run steadily without problem.

I saw my Motherboard can support the additional 4 pins.
I am not sure if I shall plug it to the motherboard or not.

Please help if you could.
Thank you.

Kitty

Title: Re: should I plug the additional 4 pins to the Motherboard
Post by: soybean on March 17, 2010, 08:46:04 AM

You say:

Quote

only for 24-pin Socket.
I do not know what this mean.

And then you say:

Quote

I saw my Motherboard can support the additional 4 pins.

Seems like you contradicted yourself. 

What make and model is your motherboard?

Title: Re: should I plug the additional 4 pins to the Motherboard
Post by: Computer_Commando on March 17, 2010, 09:30:21 AM

This one?
(http://z.about.com/d/pcsupport/1/G/1/7/-/-/atx-24pin-molex-39-01-2240.jpg)

or this one?
(http://www.mini-box.com/core/media/media.nl?id=3041&c=ACCT127230&h=ccf201be4b68da6c8b6d)

Title: Re: should I plug the additional 4 pins to the Motherboard
Post by: kwfine on March 17, 2010, 11:55:51 AM

Here are the specification, and Feature of the new PSU:

Specification:
Type: ATX V2.2 / 2.3 (EPS 12V 2.91 for 900W / 1050W)
Input Voltage: 100V~240V
Input Current: 550~750W: Max 10A; 900~1050W: Max 13A
140MM Exhaust Fan
Dimension: 150 (W) X 158 (D) X 86 (H)
MTBF: 100000hrs
Effecticiency: 80%
Hold Up time: >17ms
Power Good Signal: 100~150ms]

Feature:
20/24 Pin Main Connector Available
Support The New 8(6+2) Pin PCI Express Connector
Support S-ATA II Tech., Up to 4(6) Connector
2(4) PCI-Express Connector
2(4) Independent Sets of +12V Output
2(4) Sets Over Current Protection (OCP)
Temperature Control Function inside

I don't know if it will do any harm to the PC if a 24-pin socket on the motherboard is connected to a 20-pin connector.

Title: Re: should I plug the additional 4 pins to the Motherboard
Post by: soybean on March 17, 2010, 12:11:08 PM

Quote from: kwfine on March 17, 2010, 01:22:46 AM

Recently I bought a new power supply of 550W.

Quote from: kwfine on March 17, 2010, 11:55:51 AM

Here are the specification, and Feature of the new PSU:

Specification:
Type: ATX V2.2 / 2.3 (EPS 12V 2.91 for 900W / 1050W)
Input Voltage: 100V~240V
Input Current: 550~750W: Max 10A; 900~1050W: Max 13A

Again, we have a contradiction.  Is it 550W or 1050W?  Based on the specs you posted, it's 1050W.  So, why did you say 550W in your original post?  And, why would you need a 1050W PSU?

Quote from: kwfine on March 17, 2010, 11:55:51 AM

I don't know if it will do any harm to the PC if a 24-pin socket on the motherboard is connected to a 20-pin connector.

But, your original post indicates the PSU connector has 24 pins; they're just divided into two parts, one being 20 pins and the other 4 pins.  Right?  So, just go ahead and connect both the 20 pin and 4 pin components of the connector from the PSU to the 24 pin socket on your motherboard.

This reference may shed some light on the hardware you're working with: http://compreviews.about.com/od/cases/a/ATX12VvATX.htm

Title: Re: should I plug the additional 4 pins to the Motherboard
Post by: kwfine on March 17, 2010, 09:07:36 PM

Thank you for the help, soybean.