power supply: is it sufficient?

I read you're discussion about the pundit and the power supply.
i'm before making the discision to buy this system...
I want to build it with
DVD+RW drive
7200 rpm hard disk 200 Gb
2x512MB DDR modules
Pentium 2.4 GHz, 533MHz FSB CPU or 2.8 GHz 533MHz FSB CPU

how is your expirience until now with this system, and are you using it regulary
thanks in advance for sharing your thougths with me



Sriram wrote in message ...
Thanks to everybody who replied.

This is FYI:
I've now built the system and installed Windows and Linux onto
it. It comes with a software called Asusprob that monitors the
system status including temperatures, fan speeds, voltages etc. It
seemed to be alright. For some reason, it reported that the power supply
fan was off. I have to check if that really was the case.

The +12V leads were supposedly being supplied only 11.55 volts.
I don't know if this is a result of the power supply being overloaded.
But the system is now up for 3 days without any problems.

regards,
Sriram

Ken wrote:
On Sat, 31 May 2003 23:40:42 +1000, "Dave"
wrote:


You're going to have to do the math. Volts times amps equals watts (V x A
=W). For example, I have a hardrive that has the following specs:- 12V at
0.32A and 5V at 0.5A. Therefore 12x0.32=3.84 watts and 5x0.5=2.5 watts for
a total of 6.34 watts for that drive.


12x2.8=33.6 watts. 5x0.84=4.22 watts for a total of 37.82 watts
when starting! Normally this one use 13 Watts.
http://www.seagate.com/cda/products/...85,572,00.html



The specs that I've seen for the P4 is that they use upto 67 watts


Some p4 takes up to 105 Watts in peak! (82W normally)
http://w1.857.telia.com/~u85710476/docs/pchw91se.html
http://www.intel.com/support/process...mal.htm#Table2



and with the MB and RAM look at around 120-150
watts for MB+CPU+RAM. A 200 watt supply should do the job but there is
verry little room for extras and upgrades. If you have the choise then get
the heaviest 200 watt power supply you can find.. Heavy supplies have heavy
components and they usually last longer but a higher rated supply has the
extra reserve power and using 200 watts of a 400 watt supply will not stress
the supply and it will last longer than a 200 watt supply pushed to the
limit. Some supplies when pushed to the limit introduce noise into the
computer and cause it to crash


Don't use the PSU for more than 70% of its capacity.
You need margins if you want a stable system.