PSU HELP!

becks77 · 12 Apr 2011 at 01:42

I tried my first build took me a while go to switch it on and no luck at all. tried a few different things but no luck. so thought i would take out the main power conector. i looked at all the pins 20 or 24 how many it ever is. and notice there is one missing the gold bit sorry dont now the proper word.
Would this be the cause of the problem?

its a XFX Pro 850W Core Edition Power Supplyhttps://www.overclockers.co.uk/showproduct.php?prodid=CA-005-XF

MOBO is Asus P8P67 Pro R3 P67 Socket 1155 8 Channel HD Audio ATX Motherboard

sk82jack · 12 Apr 2011 at 01:47

Upload a pic of the connector if you can and I'm sure someone will be able to tell you if it's not right

Buchanan0204 · 12 Apr 2011 at 01:57

Pin 20 is the -5V line. It's not been used for years. Perfectly normal.

So just to check why it's not working.

1. Did you connect the cpu power, 6 pin atx? Plugs in next to the cpu socket?
2. Does your graphics card need power?
3. Did you use standoffs, gold screws to go between your motherboard and case?
4. ram correctly inserted?

If none of the above fix your problem. Post back with your full specs.

becks77 · 12 Apr 2011 at 02:07

Buchanan0204 said:
Pin 20 is the -5V line. It's not been used for years. Perfectly normal.

So just to check why it's not working.

1. Did you connect the cpu power, 6 pin atx? Plugs in next to the cpu socket?
2. Does your graphics card need power?
3. Did you use standoffs, gold screws to go between your motherboard and case?
4. ram correctly inserted?

If none of the above fix your problem. Post back with your full specs.

i dont think i did did the 6pin atx . I know there was an eight one but according to the manual it was ok to use a four pin socket. but someone else said has to be eight. But the PSU dont support that.
yes graphic cards need power. which i gave.
and did do the other board bit right i belive. Ill post my layout for you.

becks77 · 12 Apr 2011 at 02:11

Intel Core i5 2500K 3.3GHz Socket 1155 6MB Cache Retail Boxed Processor
http://www.******.com/product/251596

Asus P8P67 Pro R3 P67 Socket 8 Channel HD Audio ATX Motherboard
http://www.******.com/product/260185

XFX ATI Radeon 6950 2048MB GDDR5 PCI-Express Graphics Card [HD-695A-CNFC] X2
http://www.overclockers.co.uk/showproduct.php?prodid=gx-192-xf&tool=3

4gb g.skill ddr3 pc3-17000 2133mhz ripjawsx
http://www.memoryc.com/computermemo...170002133mhzripjawsxseriesforsandybridge.html

Samsung HD103SJ Spinpoint F3 1TB Hard Drive SATAII 7200rpm 32MB Cache X2
http://www.******.com/product/173804

XFX Pro 850W Core Edition Power Supply
http://www.overclockers.co.uk/showproduct.php?prodid=CA-005-XF

ASUS Wireless PCI-E card 802.11n , 300Mbps
http://www.******.com/product/190016

Antec 900 Nine Hundred - Gaming Case with 200mm Top Fan
http://www.******.com/product/118268

Samsung SH-S223 22x DVD±RW DL & RAM SATA Optical Drive - OEM Black
http://www.******.com/product/145450

i was told all this would work fine together. But to me the case seems to small. As the PSU wires take up allot of room

and the two GPU

Buchanan0204 · 12 Apr 2011 at 02:12

becks77 said:
i dont think i did did the 6pin atx . I know there was an eight one but according to the manual it was ok to use a four pin socket. but someone else said has to be eight. But the PSU dont support that.
yes graphic cards need power. which i gave.
and did do the other board bit right i belive. Ill post my layout for you.

Cool. Some boards are 4,6 or 8. If it's an 8 it is acceptable to use a 4 provided you don't plan on overclocking the chip. Your PSU however should definitely have an 8 pin for the cpu. Try and find that and then connect it.

*Edit*

- Fixed FDD: 1
- Fixed Peripheral: 7
- Fixed 6+2-pin PCI-E: 2
- Fixed 6-pin PCI-E: 2
- Fixed ATX12V / EPS12V: One 4+4-pin
- Fixed Motherboard Connector: 20+4 Pin
- Fixed SATA: up to 11

Taken off the description page. That is the connector you need to plug in. There should be two 4 pins rather than one large 8 pin. However they should link together, then push them in simultaneously

Buchanan0204 · 12 Apr 2011 at 02:16

It's the blue 8 pin socket on the far right hand side that we're referring too. Just so there's no confusion.

Buchanan0204 · 12 Apr 2011 at 02:21

becks77 said:
Intel Core i5 2500K 3.3GHz Socket 1155 6MB Cache Retail Boxed Processor
http://www.******.com/product/251596

Asus P8P67 Pro R3 P67 Socket 8 Channel HD Audio ATX Motherboard
http://www.******.com/product/260185

XFX ATI Radeon 6950 2048MB GDDR5 PCI-Express Graphics Card [HD-695A-CNFC] X2
http://www.overclockers.co.uk/showproduct.php?prodid=gx-192-xf&tool=3

4gb g.skill ddr3 pc3-17000 2133mhz ripjawsx
http://www.memoryc.com/computermemo...170002133mhzripjawsxseriesforsandybridge.html

Samsung HD103SJ Spinpoint F3 1TB Hard Drive SATAII 7200rpm 32MB Cache X2
http://www.******.com/product/173804

XFX Pro 850W Core Edition Power Supply
http://www.overclockers.co.uk/showproduct.php?prodid=CA-005-XF

ASUS Wireless PCI-E card 802.11n , 300Mbps
http://www.******.com/product/190016

Antec 900 Nine Hundred - Gaming Case with 200mm Top Fan
http://www.******.com/product/118268

Samsung SH-S223 22x DVD±RW DL & RAM SATA Optical Drive - OEM Black
http://www.******.com/product/145450

i was told all this would work fine together. But to me the case seems to small. As the PSU wires take up allot of room and the two GPU

With regards to the cables taking up room, that's where cable management comes into play. It is tricky to make it tidy. However rest assured it does all fit and is supposed too.

Very nice system btw. Can you try and remove one of the graphics cards and leave one in the master pci-e lane. Then give booting up a bash. Of course after you connect both 4 pins into the 8 pin socket.

becks77 · 12 Apr 2011 at 02:22

yeah thats the one. i can plug in one pin fine. but the other one does not match up. and im using the 4x4 one. so will it be fine to put it in? as its four of the same squares with a rounded top. so sorry dont know the proper terms

as all new to this. ill atke out a card as well.

bifday2k · 12 Apr 2011 at 02:26

the 4x4 can be tricky, normally it will click together to make an 8 pin, keep trying.

If it still won't go together using just a single 4 pin is totally fine, even for overclocking..

Buchanan0204 · 12 Apr 2011 at 02:29

becks77 said:
yeah thats the one. i can plug in one pin fine. but the other one does not match up. and im using the 4x4 one. so will it be fine to put it in? as its four of the same squares with a rounded top. so sorry dont know the proper terms as all new to this. ill atke out a card as well.

What is in the 8 pin socket just now?

When you say it doesn't match up? The two 4 pin connectors should be running off the same cable. They just clip together, sometimes you need to hold them together while you push it in.

See above: Does your connectos clip together like shown in the first image. Ignore second image.

becks77 · 12 Apr 2011 at 02:33

yeah it does. ok ill give it a go. thanks for your help.

Buchanan0204 · 12 Apr 2011 at 02:34

becks77 said:
yeah it does. ok ill give it a go. thanks for your help.

Keep me posted

becks77 · 12 Apr 2011 at 02:53

no luck all that happens is a green light on the mother board on. And the case lighting flicks on for 1 sec then dies.

Maybe i should pull it all out again and start a fresh. then just do it with one card.

becks77 · 12 Apr 2011 at 07:40

Ok i take most it all out and started again. this time just putting one graphic card in. It now switchs on YAY. But as im a muppet i thought i had a lead to connect from pc to my old screen but nope only have VGA lol. so have to get the other one.

There is a red light on in the top right corner of the mother board is this good or bad?

kristmace · 12 Apr 2011 at 13:37

becks77 said:
There is a red light on in the top right corner of the mother board is this good or bad?

Don't know, but your motherboard manual might have a section in it on troubleshooting that tells you.