Power Supply Question - Newbie

  • Thread starter Thread starter SAB
  • Start date Start date
S

SAB

Hi,

i know you people get these question quite often on these newsgroups
and are probably sick of them, but you are the only people who have
the experience and expertise!

Im building a new PC, i have been reading post in this and various
other news groups and have a rough idea of what i'm going for:

Asus A8V Deluxe Motherboard
AMD 64 3500 Socket 939
1GB Corsair (2 x 512Mb) CMX512 - 3200C2PT
Saphire 128mb ATI Radion 9800 Pro (256bit)
80Gb Maxtor SATA HDD
Standard DVD ROM

I have a brand new TAGAN 380W true power supply, i do not intend to
overclock anything at this stage and am wondering if this power supply
is going to be enough? I intend to use the machine to play games (but
not on a regular basis else the misses will start whinging!)

PS does anybody know where i can get a good 'Woman' remote control so
i can press pause every time and shut her up???

Are there any pitfalls that i should be aware of when i proceed to
build this PC?
 
SAB said:
Hi,

i know you people get these question quite often on these newsgroups
and are probably sick of them, but you are the only people who have
the experience and expertise!

Im building a new PC, i have been reading post in this and various
other news groups and have a rough idea of what i'm going for:

Asus A8V Deluxe Motherboard
AMD 64 3500 Socket 939
1GB Corsair (2 x 512Mb) CMX512 - 3200C2PT
Saphire 128mb ATI Radion 9800 Pro (256bit)
80Gb Maxtor SATA HDD
Standard DVD ROM

I have a brand new TAGAN 380W true power supply, i do not intend to
overclock anything at this stage and am wondering if this power supply
is going to be enough? I intend to use the machine to play games (but
not on a regular basis else the misses will start whinging!)

PS does anybody know where i can get a good 'Woman' remote control so
i can press pause every time and shut her up???

Are there any pitfalls that i should be aware of when i proceed to
build this PC?
Click to expand...

Check it at http://www.jscustompcs.com/power_supply, or any of the other
PS calculator sites on the web.
 
Hi,

i know you people get these question quite often on these newsgroups
and are probably sick of them, but you are the only people who have
the experience and expertise!

Im building a new PC, i have been reading post in this and various
other news groups and have a rough idea of what i'm going for:

Asus A8V Deluxe Motherboard
AMD 64 3500 Socket 939
1GB Corsair (2 x 512Mb) CMX512 - 3200C2PT
Saphire 128mb ATI Radion 9800 Pro (256bit)
80Gb Maxtor SATA HDD
Standard DVD ROM

I have a brand new TAGAN 380W true power supply, i do not intend to
overclock anything at this stage and am wondering if this power supply
is going to be enough? I intend to use the machine to play games (but
not on a regular basis else the misses will start whinging!)

PS does anybody know where i can get a good 'Woman' remote control so
i can press pause every time and shut her up???

Are there any pitfalls that i should be aware of when i proceed to
build this PC?
Click to expand...

From AMD doc #30430, the 3500+ uses 89W of power at 100% load.
The power is drawn from +12V (that is why there is a 2x2 12V
power connector next to the Vcore circuit). 89W/12V = 7.4 amps.
Allowing 90% efficiency for the Vcore circuit, and working
backwards to the source 7.4amps/0.90 = 8.24 amps.

Add to this, 1 amp for a high end video card's +12V. You need
maybe 1 amp for the fans. And allow 0.5 amps per disk drive and
per CD/DVD drive (to spin the motor while the drive is idling).

Thus, your power supply needs 12amps minimum on the +12V rail, and
12V@15A would provide a little margin for error.

As for the other outputs on the power supply, a wild guess is
the 3.3V will need about 15 amps. But this is just based on
what a P4 motherboard I've got, draws from that rail. It is
hard to calculate a value, so measuring another kind of board
is the only way in this case that I can even begin to guess
what the board needs.

So, check the label on the side of the supply - unless it is like
one of those "500W+" supplies with the weak +12V output, you
should be OK.

Maybe this is your supply ?
http://www.newegg.com/app/ViewProductDesc.asp?description=17-101-508&depa=0

+3.3V@28A, +5V@37A, +12V@22A, [email protected], -12V@1A, [email protected]

With those ratings, the supply would be suitable for any
of P4, Athlon64, or AthlonXP. You could even afford to
add more disk drives.

HTH,
Paul
 
I just finished putting together a machine yesterday with an Antec
SmartPower 350. In it is:

Asus A8V Deluxe
AMD 64 3400+
1GB Kingston Pc3200
(2) Maxtor 80GB SATA Ultra drives in Raid0
(1) DVDRW
(1) CDRW
(1) Removable Harddisk
BFG TI-4600 video card
Turtle Beach Santa Cruz sound card.

It hasn't had a problem yet with too little power. Of course once I
upgrade to a 6600GT I will probably have problems.

Kevin
 
From AMD doc #30430, the 3500+ uses 89W of power at 100% load.
The power is drawn from +12V (that is why there is a 2x2 12V
power connector next to the Vcore circuit). 89W/12V = 7.4 amps.
Allowing 90% efficiency for the Vcore circuit, and working
backwards to the source 7.4amps/0.90 = 8.24 amps.

Add to this, 1 amp for a high end video card's +12V. You need
maybe 1 amp for the fans. And allow 0.5 amps per disk drive and
per CD/DVD drive (to spin the motor while the drive is idling).

Thus, your power supply needs 12amps minimum on the +12V rail, and
12V@15A would provide a little margin for error.

As for the other outputs on the power supply, a wild guess is
the 3.3V will need about 15 amps. But this is just based on
what a P4 motherboard I've got, draws from that rail. It is
hard to calculate a value, so measuring another kind of board
is the only way in this case that I can even begin to guess
what the board needs.

So, check the label on the side of the supply - unless it is like
one of those "500W+" supplies with the weak +12V output, you
should be OK.

Maybe this is your supply ?
http://www.newegg.com/app/ViewProductDesc.asp?description=17-101-508&depa=0

+3.3V@28A, +5V@37A, +12V@22A, [email protected], -12V@1A, [email protected]

With those ratings, the supply would be suitable for any
of P4, Athlon64, or AthlonXP. You could even afford to
add more disk drives.

HTH,
Paul
Click to expand...

Don't forget that disk drive motors take more current when they spin-up.

Arnie
 
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