Absolute Minimum PSU

[Swordhero1]

What happens if load wattage goes a couple watts over the rating? Like 10 or 20 watts? Im trying to put together an i3-2120 and a gtx 760 with a 400W psu and it seems to be on the very edge. i know you are going to recommend a higher PSU, but I just want to know if this would work, as I already have the psu.

[chen57]

what psu is it ?

[Swordhero1]

2 minutes ago, chen57 said:

what psu is it ?

COUGAR RSB 400 400 Watt 80-Plus Power Supply

[Swordhero1]

3 minutes ago, chen57 said:

what psu is it ?

Also I am planning on adapting 2 molex to an 8 pin pcie along the 6 pin it has.

[chen57]

i wouldnt do it. but if it was a higher quality psu it could be ok

[Swordhero1]

2 minutes ago, chen57 said:

i wouldnt do it. but if it was a higher quality psu it could be ok

It is 80 Plus certified, but when I use a psu calculator it says load wattage is literally 400.

[chen57]

80 plus are basically the lowest quality psu

[Tautedorus]

13 hours ago, Swordhero1 said:

Also I am planning on adapting 2 molex to an 8 pin pcie along the 6 pin it has.

Well, this is just asking for trouble. Molex cable has just one 12V wire whereas 8-pin PCIe connector needs three. I strongly recommend against using that adapter.

 

Rule of thumb: if your PSU doesn't have enough cables, it's not meant to power your system. You should get a new good quality unit.

[Tautedorus]

1 hour ago, Swordhero1 said:

It is 80 Plus certified, but when I use a psu calculator it says load wattage is literally 400.

80 Plus certificate only provides information about the efficiency of the unit, not its quality. This is really low quality unit that needs to be replaced.

[Guest]

2 hours ago, Swordhero1 said:

COUGAR RSB 400 400 Watt 80-Plus Power Supply

 

2 hours ago, Swordhero1 said:

Also I am planning on adapting 2 molex to an 8 pin pcie along the 6 pin it has.

 

2 hours ago, Swordhero1 said:

It is 80 Plus certified, but when I use a psu calculator it says load wattage is literally 400.

It's a bottom of the line Cougar.

 

80 PLUS is an efficiency rating, not a quality rating.

 

Adapters create a weak link in the connection as it adds resistance to the circuit.