Which Power Supply for AMD Athlon 64 (Winchester Core)?

J

Jay Chan

I would like to know how big a power supply I should get for a
home-built PC. Will it be 200w, 250w, 300w or 350w?

The PC will have the following components:
- AMD Athlon 64 3000+ (with Winchester core that is
supposed to consume less power than other Athlon)
(I will not overclock it)
- CPU-cooling fan
- One case fan
- ATI Radeon 9550 8x AGP video card (I don't think
I need a fan for the video card, right?)
- One DVD-ROM drive that can burn CD-RW
- One Seagate 160-GB SATA hard disk (I may or may not
add another hard disk (likely not))
- The motherboard has everything else that I need

How big a power supply should I get?

Thanks in advance for any info.

Jay Chan
 
D

Dave C.

Jay Chan said:
I would like to know how big a power supply I should get for a
home-built PC. Will it be 200w, 250w, 300w or 350w?

The PC will have the following components:
- AMD Athlon 64 3000+ (with Winchester core that is
supposed to consume less power than other Athlon)
(I will not overclock it)
- CPU-cooling fan
- One case fan
- ATI Radeon 9550 8x AGP video card (I don't think
I need a fan for the video card, right?)
- One DVD-ROM drive that can burn CD-RW
- One Seagate 160-GB SATA hard disk (I may or may not
add another hard disk (likely not))
- The motherboard has everything else that I need

How big a power supply should I get?

Thanks in advance for any info.

Jay Chan

400W or better. 300W is minimum for your graphics card, assuming the rest
of your system is average (which it is) But then, you want room to upgrade
later, so up that by at least 100W. This doesn't have to be expensive or
noisy though. (see below) Oh, if you need a fan for the video card, the
video card will come with it. -Dave

http://www.newegg.com/app/ViewProductDesc.asp?description=17-153-006&depa=0
 
A

Al Smith

I would like to know how big a power supply I should get for a
home-built PC. Will it be 200w, 250w, 300w or 350w?

Might as well get a 400W. That way you won't be wondering if
you've got enough power to upgrade. You can probably manage with
as little as 300W if there is any advantage in going with a lower
power rating.
The PC will have the following components:
- AMD Athlon 64 3000+ (with Winchester core that is
supposed to consume less power than other Athlon)
(I will not overclock it)

Why not go a little faster on the CPU? At least a 3200+. The price
has come way down.
- CPU-cooling fan

This will come with the CPU if you buy retail, but it is noisy at
high RPMs. You will probably want an after-market heatsink and fan
for your processor.
- One case fan

Mount it in the back, up near the power supply, so that it sucks
the air out of the case.
- ATI Radeon 9550 8x AGP video card (I don't think
I need a fan for the video card, right?)

The fan is bolted to the card. If you can get a decent card
without a fan, that might be a good choice, but most faster cards
have got fans these days.
- One DVD-ROM drive that can burn CD-RW

Get a multi-format, dual layer DVD burner, which will also burn
CDs. Why limit yourself?
- One Seagate 160-GB SATA hard disk (I may or may not
add another hard disk (likely not))

Why go with a SATA drive? It has no practical advantages, and some
disadvantages. Go regular old IDE. Seagate is a good choice, though.
 
A

Andy

Athlon 64 3000+
Gigabyte GA-K8N Pro
512 MB RAM
ATI Radeon 7000 PCI
160 GB Hard Drive
CD-RW Drive
Floppy Drive
Power Supply: Works W365CN4
Power (CPU 0 - 1 %): 74 Watts; PF: .73
(CPU 100 %): 116 Watts; PF: .72
 
D

Dave C.

Andy said:
Athlon 64 3000+
Gigabyte GA-K8N Pro
512 MB RAM
ATI Radeon 7000 PCI
160 GB Hard Drive
CD-RW Drive
Floppy Drive
Power Supply: Works W365CN4
Power (CPU 0 - 1 %): 74 Watts; PF: .73
(CPU 100 %): 116 Watts; PF: .72

Have you broken that down by rails? -Dave
 
J

Jay Chan

- ATI Radeon 9550 8x AGP video card (I don't think
400W or better. 300W is minimum for your graphics card, assuming the rest
of your system is average (which it is) But then, you want room to upgrade
later, so up that by at least 100W. This doesn't have to be expensive or
noisy though.

You are very likely to be right. Another forum member suggests 360w
that is pretty much near your suggestion. I am trying to reduce the
heat from the power supply because I am going to put it inside one of
the beautiful HTPC case that tends to have less space than a full
tower case; that is the reason why I want to use a lesser power
supply. But then I think the fan inside the power supply is going to
blow hot air _out_ of the case anyway. Then heat or no-heat probably
doesn't really matter much. There is a good chance that I will go for
a 400w power supply as you have suggested.
Oh, if you need a fan for the video card, the video card will come
with it.

Yes, I am thinking of replacing the ATI Radeon 9550 with ATI Radeon
9600-XT, and ATI Radeon 9600-XT definitely comes with a fan. This
means the power requirement will need to account for the
video-card-fan. Seem like I am not likely to use a 300w power supply,
and I am likely to _need_ a 350w power supply (and probably _want_ a
400w power supply in case I add stuff).

Thanks for the info.

Jay Chan
 
J

Jay Chan

Might as well get a 400W. That way you won't be wondering if
you've got enough power to upgrade. You can probably manage with
as little as 300W if there is any advantage in going with a lower
power rating.

If I understand this correctly, seem like 300W is the minimum, 350W is
the "suggested" that gives me some head room, and 400W is a
"no-regret" choice. Thanks for info.
Why not go a little faster on the CPU? At least a 3200+. The price
has come way down.

Actually, there is no particular reason why I choose 3000+ instead of
3200+. My current PC is a 1.4GHz P4. I like to at least double the
speed of what I current have whenever I get a new PC. This means a 2.8
GHz rating is the minimum that I should get. I think I may get a
little bit more just to play safe, and 3000+ is a nice rounded number.
There is really not much of a science in coming up with this choice.

I have a feeling that a 3000+ and a 3200+ probably doesn't really have
much of a difference, at least not something that I can tell.
Therefore, I am better off staying with something a tiny bit slower.
Hopefully, the CPU will run a bit cooler. This should help especially
the case that I am going to put it in is a HTPC style case. HTPC style
case tends to be small and have less cooling.
This will come with the CPU if you buy retail, but it is noisy at
high RPMs. You will probably want an after-market heatsink and fan
for your processor.

You are exactly right. I will get an OEM CPU that probably doesn't
have heatsink nor CPU-fan, and I will get a good after-market heatsink
and CPU fan.
Mount it in the back, up near the power supply, so that it sucks
the air out of the case.

The case that I am looking at from Cooler Master is like what you have
described. It also has another fan in the front to blow cool air in.

I count that there will be totally 6 fans inside the case (power
supply, CPU, video card fan, two fans in the rear, and one fan in the
front). I am just wondering whether there are more fans than I really
need. I probably need to play around with some CPU/video intensive
application (such as games) and check the temperature inside the case
to see if I can turn off one or two fans.
The fan is bolted to the card. If you can get a decent card
without a fan, that might be a good choice, but most faster cards
have got fans these days.

The video card that I was looking at doesn't need a fan. But I have
decided to get ATI Radeon 9600-XT instead of 9550. And 9600-XT
definitely comes with a fan.
Get a multi-format, dual layer DVD burner, which will also burn
CDs. Why limit yourself?

Actually I made a mistake. I intend to put a DVD burner in the new PC.
I will be moving that DVD burner from my current PC to the new PC. I
haven't used it as a DVD-burner before; therefore, I didn't remember
that it is actually a DVD burner. My mistake.
Why go with a SATA drive? It has no practical advantages, and some
disadvantages. Go regular old IDE. Seagate is a good choice, though.

I am under the impression that the cable for SATA is narrow and
doesn't block as much air flow as IDE cable does. This is the primary
reason of getting a SATA. Secondarily, I like to have an option to get
another 160GB in the future and make a RAID-0 to improve I/O speed.

Nice to talk with you.

Jay Chan
 
J

Jay Chan

Athlon 64 3000+
Gigabyte GA-K8N Pro
512 MB RAM
ATI Radeon 7000 PCI
160 GB Hard Drive
CD-RW Drive
Floppy Drive
Power Supply: Works W365CN4
Power (CPU 0 - 1 %): 74 Watts; PF: .73
(CPU 100 %): 116 Watts; PF: .72

The W365CN4 power supply is rated as 360W in their web site. Seem like
360W is all I need. I may get a 400W just in case I need to add
another 160GB hard disk to make a RAID-0.

This means I should look for power supplies in the range of 360W to
400W.

Thanks for sharing the info of your PC configuration.

Jay Chan
 

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Top