20 pin 530w psu for asus p5n32 sli se deluxe?

Question

I've got a 530w 20 pin psu. built a new conroe 2.13 system with an asus p5n32 sli se deluxe mobo. the mobo has a 24 pin psu connection. will a psu with 20 pin connector work just leaving the other 4 pin part empty? or do I have to have a 20+4 psu?

Answer 1

Hi there:

The 24 pin just has 4 yellow wires going to SAME solder spot on
the power supply on the inside, that the 20 pin yellow 12 Volt wires
are connected to -- ie there is no special "other " power rail or circuits inside the power supply that do anything.
The MOTHERBOARD, however, may have separate traces to different 12 Volt connections, and as one answerer stated, on some motherboards, if you don't plug in the 12 volt separate wires, the motherboard will be missing the 12 Volt outputs needed, and may not work.
An article on power supplies on the web for a power supply TEST and Review page states clearly:

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For the same very reason, there is no technical meaning in the words of PSU manufacturers about extra stability, extra wattage, and any other extras that multiple +12V lines bring about. You’d better just filter out this white noise you hear from the marketing departments. Stability, wattage and other characteristics all come from the “basic” +12V power rail and do not depend at all on how many lines this rail is split into on the PSU’s output. In other words, a PSU with a single 12V/36A line is not any worse than a PSU with two 12V/18A lines.
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You can buy a jumper adapter to fit into the extra 4 pins,
or just jumper them yourself.
You could just try to put in the 20 pin and see if the motherboard
has all the 12 Volt pins connected together in the first place !!
Some motherboard 'MONITOR" programs may monitor the
voltages, and prevent the 20 pin plug from working - just jumper the extra four pins to +12 Volts.
You should find in the manual on the montherboard, what the
12 Volt requirements are for the motherboard. Add in the power
requirements for the harddrives and peripherals, and make sure the total does not exceed the ATX 20 pin unit's ratings.
Generally, there is NO difference whatsoever in the 20 to 24 pin ATX power supplies' internal switch mode electronics - just more wires comming out of the box... ex. a 530w 24 power supply circuitboard is IDENTICAL to a 530W 20 pin power supply circuitboard...
If I was faced with a 24 pin board that separated the extra four12 Volt pins, I would either solder in 4 more yellow wires to carry more 12 volt current to the board and SOLDER them to the 4 pins, or just jumper the 4 extra pins together with soldered wires,
and bare a spot on the other 2 yellow 12 volt ATX wires, and
solder the bunch together-- the ends of all the yellow wires are
soldered together inside the Power Supply in the first place !

I just looked up the motherboard that you listed. It certainly looks like a screaming machine, with the possibility of loading it up with huge amounts of harddrives, and PCI cards. I dont know if you are just going to use it to go online for your email, or are loading it with 2 sets of RAID, high amperage sucking 10,000 rpm Raptor drives, and filling all the PCI's with high amperage peripherals.
If you are planning to load this unit, then, I would agree with some of the other opinions, that you upgrade your power supply with a heavy, solid, 800 watt unit from a class A manufacturer. And, of course, the newer power supply would already have the extra 4 yellow wires on a plug to the 4 extra pins on the MB. If you are just putting in the home-user typical 1 harddive and 1 DVD, since everything imaginable is already onboard, twice, you dont need any PCI cards, and your 530 watt is just fine.

Hope this helps you get your computer going !

robin

Answer 2

Some will function with only the 20 pin connection, some won't. You can try it however if I had to recommend something I would recommend getting a new PSU.

Answer 3

you can use a 24-pin or 20+4 pin psu

Answer 4

until now getting the recent motherboard, verify the technical specs and a closeup photograph of the board. If that board is a similar length because of the fact the single in there now and the ports experience the openings in the case, then you particularly can use that motherboard to replace what you have.