hello group;
i'm currently running a p4p800SE w P4-3.0Ghz with :
-2 Optical drives (1player and 1 burner)
-1 Floppy drive
-1 radeon 9250 video card (no special power from psu needed)
-1 120mm fan
-1 120Gb 7200 rpm Ide hard drive

My actual power supply is a macron 300 watts only...
could i safely add a 2nd hard drive ? (Raptor 10k rpm SATA) or is it to much
for such a small PSU ?

Thank you !
Arthur

In article <cp7iae$9u2$(E-Mail Removed)>, "Arthur"
<(E-Mail Removed)> wrote:

> hello group;
> i'm currently running a p4p800SE w P4-3.0Ghz with :
> -2 Optical drives (1player and 1 burner)
> -1 Floppy drive
> -1 radeon 9250 video card (no special power from psu needed)
> -1 120mm fan
> -1 120Gb 7200 rpm Ide hard drive
>
> My actual power supply is a macron 300 watts only...
> could i safely add a 2nd hard drive ? (Raptor 10k rpm SATA) or is it to much
> for such a small PSU ?
>
> Thank you !
> Arthur

Try this power estimator:

http://takaman.jp/D/?english

The power supply rating printed on the label on the side
of the power supply, is what you want to compare. Look
at the rated current for +3.3, +5.0, +12V, and see if
the Macron has more current to offer, than the values
you get from the "takaman" calculator.

The power estimators I have examined on the Internet,
are uniformly pessimistic. For example, when I ran the
numbers for your system, I got close to 300W from the
"takaman" calculator. And, that estimate is higher than
it should be. The measured power for my 2.8C P4C800-E
with a 9800pro video card, is about 150W. Another disk
drive would add maybe another 12W to that, for a total
of 162W.

In the end, it is your personal judgement that counts.
If the Macron is making funny noises, gets extremely
hot while operating, or the measured voltages change
a lot when the CPU is very busy, those are also
indications that a better power supply should be
purchased. If a power supply fails, it can do some
very expensive damage.

Paul

Thank you !
i'll try to keep the actual psu with the second hard drive as it looks
marginal but "okay"
Thanks again !

Arthur

"Paul" <(E-Mail Removed)> a écrit dans le message de news:
nospam-0912040803050001@192.168.1.177...
> In article <cp7iae$9u2$(E-Mail Removed)>, "Arthur"
> <(E-Mail Removed)> wrote:
>
>> hello group;
>> i'm currently running a p4p800SE w P4-3.0Ghz with :
>> -2 Optical drives (1player and 1 burner)
>> -1 Floppy drive
>> -1 radeon 9250 video card (no special power from psu needed)
>> -1 120mm fan
>> -1 120Gb 7200 rpm Ide hard drive
>>
>> My actual power supply is a macron 300 watts only...
>> could i safely add a 2nd hard drive ? (Raptor 10k rpm SATA) or is it to
>> much
>> for such a small PSU ?
>>
>> Thank you !
>> Arthur
>
> Try this power estimator:
>
> http://takaman.jp/D/?english
>
> The power supply rating printed on the label on the side
> of the power supply, is what you want to compare. Look
> at the rated current for +3.3, +5.0, +12V, and see if
> the Macron has more current to offer, than the values
> you get from the "takaman" calculator.
>
> The power estimators I have examined on the Internet,
> are uniformly pessimistic. For example, when I ran the
> numbers for your system, I got close to 300W from the
> "takaman" calculator. And, that estimate is higher than
> it should be. The measured power for my 2.8C P4C800-E
> with a 9800pro video card, is about 150W. Another disk
> drive would add maybe another 12W to that, for a total
> of 162W.
>
> In the end, it is your personal judgement that counts.
> If the Macron is making funny noises, gets extremely
> hot while operating, or the measured voltages change
> a lot when the CPU is very busy, those are also
> indications that a better power supply should be
> purchased. If a power supply fails, it can do some
> very expensive damage.
>
> Paul