Re: Paul and Old Man: Cannot fix RAID5 failure ...

On Sun, 23 Apr 2006 21:33:08 +0200, "John7" <NoSp@xxxxxx> wrote:


"John Lewis" <john.dsl@xxxxxxxxxxx> wrote in message
news:444bc50f.627683@xxxxxxxxxxxxxxxxxxx
On Sun, 23 Apr 2006 13:42:44 +0200, "John7" <NoSp@xxxxxx> wrote:

To Pual and Old Man,


Power Supply
=========
Thx for the great PSU calculator.

It calculated 282W (without motherboard, wireless mouse & keyboard
receiver).
Futhermore, the amount of video RAM might make a difference while the
calculator does not accommodate for this.
Also, most manufacturers do not provide power requirements (motherboards
etc)

To keep a long story short. I think the power supply is close to the
edge.
Probably 420...450W would provide enough headroom.
Considering 3 SATA drives spining up after powerdown may cause a 12V
collapse causing serious data damage and RAID failure.

I'll swap the supply for a bigger one, time will tell wether this was the
root cause.


Incomplete answer. If you mean bigger=more watts.

Swap the supply to one from a reputable power-supply manufacturer
<<with adequate +12V current>>. Total Wattage is not the issue.
Modern PC hardware requires lots of +12V current. Total wattage tells
you nothing about the +12V capability.

Preferably a ATXV2.x with dual +12V outputs, typically they have
12 -18 amps per output.

John Lewis

Ofcourse, bigger means more Watts, especially for 12V.
Thx for the elaboration.


Tell you a secret. When I am evaluating ATX power-supplies
for computer-builds, only 3 things truly matter to me these days...
* Manufacturer's reputation for quality and reliability.
* +12V max. current capability ( combined for dual +12V )
* Interconnect type and quantity.

Overall Wattage does not feature on my list and has not for the
last 2 years. All current ATX power-supplies have more than
enough +5 and +3.3 to serve any modern PC build.

John Lewis




John7



.

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