Ultra Xfinity 600 watt 4 pin problem

[inatizzy]

Hello all haven't been here for a while but I'm not sure what to do about this psu and appreciate your help. I bought this psu few years ago for a back up. Now that I need to use it, I seperated the 4 pin that was connected to the mb connector 20/24 pin. But the problem is the 4 pin connector has round & square holes are opposite on the mb so it won't fit. I checked another mb and it was the same pin holes as the other mb. Now I don't know how to connect power to the mb 4 pin. Is there an adapter? Do I try to cut down one of the other connectors. Do I need to get another psu? tia

Ultra Xfinity 600 Watt ATX
20/24 Pin MB connector .....x1
4 Pin + 12v MB Conector .....x1
4 Pin Molex Connector ........x8
4 Pin Floppy Power Connect ..x2
Sata Connectors ........x4
8 Pin EPS Connector ....x1

 

[Blastman]

You are probably mixing up the 4-pin connector that belongs to the 20+4 pin, with the (P4/ATX) +12v 4-pin connector that connects in a separate 4-pin socket for the CPU.

Your power supply has 2 different +12v connectors for the CPU, a 4-pin (P4/ATX) and a EPS 8-pin. Both these connectors are for the separate 4 or 8 pin socket (depending on what our motherboard has) that powers the CPU. Most power supplies these days have a 4+4 EPS connector that can be separated in case the m/b has only a 4-pin socket (in that case you only use 1/2 the EPS connector). Instead of a 4+4 pin EPS that pulls apart, your psu Ultra Infinity 600w has both a separate 4-pin and a 8-pin. DO not confuse that 4-pin connector with the 4-pin connector that belongs to the 20+4 pin connector. The pins are keyed so if you try and use the wrong one it will not go in the socket.

Find the correct 4-pin connector that belongs to your 20+4 pin m/b (it should be in the same wire grouping) and if your m/b uses a 24-pin make sure it is oriented the correct way. If your m/b is old and uses only a 20-pin, then that 4-pin connector will go unused.

Then, depending on whether your m/b CPU power connector requires a 4-pin (P4/ATX) or 8-pin EPS connector, you plug that into your m/b.

 

[Blastman]

to add...

Ultra Xfinity 600 Watt ATX
20/24 Pin MB connector .....x1 … … this 4-pin is different than …
4 Pin + 12v MB Conector .....x1 … … this 4-pin
4 Pin Molex Connector ........x8
4 Pin Floppy Power Connect ..x2
Sata Connectors ........x4
8 Pin EPS Connector ....x1

 

[inatizzy]

You are probably mixing up the 4-pin connector that belongs to the 20+4 pin, with the (P4/ATX) +12v 4-pin connector that connects in a separate 4-pin socket for the CPU.

Your power supply has 2 different +12v connectors for the CPU, a 4-pin (P4/ATX) and a EPS 8-pin. Both these connectors are for the separate 4 or 8 pin socket (depending on what our motherboard has) that powers the CPU. Most power supplies these days have a 4+4 EPS connector that can be separated in case the m/b has only a 4-pin socket (in that case you only use 1/2 the EPS connector). Instead of a 4+4 pin EPS that pulls apart, your psu Ultra Infinity 600w has both a separate 4-pin and a 8-pin. DO not confuse that 4-pin connector with the 4-pin connector that belongs to the 20+4 pin connector. The pins are keyed so if you try and use the wrong one it will not go in the socket.

Find the correct 4-pin connector that belongs to your 20+4 pin m/b (it should be in the same wire grouping) and if your m/b uses a 24-pin make sure it is oriented the correct way. If your m/b is old and uses only a 20-pin, then that 4-pin connector will go unused.

Then, depending on whether your m/b CPU power connector requires a 4-pin (P4/ATX) or 8-pin EPS connector, you plug that into your m/b.

The specs on outside of the box.
20/24 Pin MB connector .....x1 ... I can seperate into 20 pin & 4 pin
4 Pin + 12v MB Conector .....x1 ... there is no 4 pin
8 Pin EPS Connector ....x1 ... I can seperate into (2) 4 pin

Thanks Blastman can't thank you enough. So then I can just separate the 8 pin EPS connector used for workstation/server board into (2) 4 pins & use one of them. Why didn't support just tell me that instead of telling me to seperate mb 20/24 pins. To tell the truth I didn't know about the EPS connector and didn't see that it could be seperated. I really appreciate your help so much less frustrated now and happy to continue with fixes. :biggrin:
​

 

[BoomerD]

The specs on outside of the box.
20/24 Pin MB connector .....x1 ... I can seperate into 20 pin & 4 pin
4 Pin + 12v MB Conector .....x1 ... there is no 4 pin
8 Pin EPS Connector ....x1 ... I can seperate into (2) 4 pin

Thanks Blastman can't thank you enough. So then I can just separate the 8 pin EPS connector used for workstation/server board into (2) 4 pins & use one of them. Why didn't support just tell me that instead of telling me to seperate mb 20/24 pins. To tell the truth I didn't know about the EPS connector and didn't see that it could be seperated. I really appreciate your help so much less frustrated now and happy to continue with fixes. :biggrin:
​

You only separate the 20+4 pin connector if your board has a 20 pin socket. Newer boards have a 24 pin socket.
The 4-pin part of the 20+4 pin connector is NOT a replacement for the EPS 12v 4/8 pin connector.

 

[inatizzy]

You only separate the 20+4 pin connector if your board has a 20 pin socket. Newer boards have a 24 pin socket.
The 4-pin part of the 20+4 pin connector is NOT a replacement for the EPS 12v 4/8 pin connector.

Thanks BoomerD I've learned my lesson. Since my mb can use either 20 or 24 pin. I got confused after when Ultra support guy told me to seperate that one, and never mentioned, and I didn't know about seperating the EPS cable. It didn't sound right to me which brought me back here and you guys set me straight. I should call Ultra support back and set him straight. lol