Re: PC PSU

["m_surgenor" <malcolm@xxxxxxxxxxxx>]

in another forum someone pointed out this difference between the two
PSUs i'm using...

Silentmaxx    12 volt = 19 amps
Qtechnology  12 volt = 29 amps

Excuse my electrical ignorance but what's the significance of this??
I'd always checked the wattage of PSUs before but never ampage.

Malcolm

--- In ukha_d@xxxxxxx, "Crick, Steve (UK)"
<steve.crick@b...>
wrote:
>
> Shooting from the hip I would try:
>
> Check the input mains voltage is set to 240v
> Make sure your mobo does not expect to get an RPM from the PSU fan
(if it
> is fan-less I assume this will be zero; one of my mobos shuts down
if it
> gets a zero value from the CPU fan...long shot but might be worth
> looking into)
>
> S
>
>
> -----Original Message-----
> From: m_surgenor [mailto:malcolm@s...]
> Sent: 21 December 2004 15:44
> To: ukha_d@xxxxxxx
> Subject: [ukha_d] Re: PC PSU
>
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> --- In ukha_d@xxxxxxx, "Malcolm Surgenor"
<malcolm@s...>
> wrote:
> > gone back to the old unit this morning and everything is ok -
guess
> I have a
> > duff unit.  so much for super efficient German engineering!  :(
> >
> > Malcolm
>
> Well my replacement arrived today - super quick service from Quietpc
> as always.
>
> However I still have the problem!
>
> I can't believe there would be two faulty units though.
>
> I'm back on the QTechnology PSU (Ultra-Quiet ATX 460W) now but I
> tried every combination of connections with the SilentMaxx and
> couldn't get it to boot my PC.
>
> The motherboard is a Jetway 845E and uses the 20 pin ATX power
supply
> connector, the 4 pin ATX 12v power connector as well as a 6 pin ATX
> P9 power connector (the QYechnology PSU doesn't have this - although
> I've tried the Silentmaxx with and without this to no avail).
>
> The PC needs power leads for two Hard Drives, a floppy, a CD and DVD
> as well as a removable drive cage but even with just the motherboard
> connections and only just one Hard Drive, all that happens when I
> press the power switch is the PSU fan spins up and the processor fan
> (Zalman CNPS6500B) spins but the PC doesn't boot. As soon as I
remove
> my finger from the power button the fans spin down.
>
> I've also tried the PSU in all three modes (no fan, full fan, etc.)
> but it still doesn't work.
>
> Anyone any suggestions?
>
> Malcolm
>
>
>
>
>
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