Question 1

Just applied power to mine, pc not turned on, and the fan starts spinning at a low rpm.  Is this normal for the fan to be on while the pc is off?

Accepted Answer

Mine didnt do that  when i installed it it didnt come on till i turn the tower on the rest of the time is not doing any thing fan is not running  i would say u have a bad one   i would ask the tecks on the site that sold it to u and send it back for a different one

Question 2

What cables does this come with?

Accepted Answer

It comes with the following
1: 20+4 main connector
2: 4+4 pin connector 12v eps

some of thesis are daisy chained together:  (meaning there are multiple connectors on a single cable. The connectors are about 5-6 inches apart on the cable)

8 total 6+2 pin Pci-e connectors:  on 6 cables:
6+2 pin pci-e cables:   1 connector per cable: count=4 @ about 2 feet in length:
6+2 pin pci-e cables:   2 connectors per cable:  count=2:= cables:   length about 2 feet : ( and about 3 inches span between the 2 connectors:

5 cable just over 3ft in length:
Thesis have a mix of connectors:  each one has 3 S-ata connectors about 6 inches apart and at the end of each cable is a 4 pin molex

And 1, 4 pin floppy connector:

I have not had any problems with the power supply yet:
MY opinion there are plenty of cables for a decent build:
My is an extended atx case 25d 15w 181/2 h:  and I have not had any problems with the cables:
They  have plenty of reach:  they are completely removable from the power supply:

Question 3

When would more +12v rails be necessary?

Accepted Answer

Without getting into the electrical science of power supply units I can say that it shouldn't be necessary for computer equipment to need multiple rails that are out on the market today. The reason being is that there isn't enough of a difference between single vs. multiple rails. This theory of distinguishing PSU's by rails is honestly a marketing ploy. In my opinion, go with the power supply that has the best warranty and supports the wattage for your rig with price also in mind. I personally bought this PSU because I have an overclocked system sporting two ATI R9 290x cards that are in a cross fire configuration. The wattage met my needs for power, provided a 5 year warranty that no other competitor (in the 1200W range) came close to, and was a great price compared to other models. It's also helpful to note that if a rail fails in a "multiple rail" PSU, the chances are that it will fail completely and not be able to operate or support the load for the system compared to a single rail setup. Most people would look at multiple rails in a PSU as a sign of redundancy but that almost never is the case. If anything, you are actually increasing your chances of a power supply failure. So again, consider the warranty, wattage, and of course the price and choose something that fits that criteria along with supporting reviews.

Question 4

Would this PSU work well with the Tyan S7012-GM4NR motherboard? (I need 2 Xeon CPU support 2x8Pin)

Accepted Answer

Hello,

This PSU has 2 ATX 4+4 (8pin) power connections to supply power to two CPUs, please read the following under Features>Connectors within the Specifications tab:

2 x 4+4-Pin ATX12V / EPS12V Connector

To clarify, whenever you see 4+4-Pin ATX connections, those are used to supply power to the CPU so in this case you get two sets of those 4+4 connectors (making them 8 pin if your board doesn't use 4 Pin headers).  Hope this helps!

Newegg Support

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