Parts for WHS build?

[MrCrispy]

Finally decided to build a WHS box, which needs to be cheap, low power and quiet. I feel good about these -

GIGABYTE GA-MA74GM-S2 - http://www.newegg.com/Product/Product.aspx?Item=N82E16813128342

AMD Athlon 64 X2 5050e - http://www.newegg.com/Product/Product.aspx?Item=N82E16819103298
Is the stock HSF enough for WHS, i.e. is it quiet enough?

RAM - will use leftover 2gb stick

Need help with the rest.

Case+PSU - I already have an old Coolermaster case, but need a PSU. I plan to put at least 5 hdd's, how much power would I need? Newegg has some cheap Antec cases with PSU for $60-80 which look like a bargain, or should I just get a better PSU?

Sata backplane - How is this?
NORCO SS-500 - http://www.newegg.com/Product/Product.aspx?Item=N82E16816133030

[Danny Bui]

A good quality 380W to 400W PSU will be enough to power that system + 5 drives. Which coolermaster case do you have? Depending on the case, it may cheaper to just get a better quality PSU for $60 to $80 rather than Antec's Case/PSU combos.

[MrCrispy]

Its this one - http://www.techaddicts.net/reviews/atc201c/atc201c.html

Btw, its a pretty nice case, is it worth selling?

[Danny Bui]

Its this one - http://www.techaddicts.net/reviews/atc201c/atc201c.html

Btw, its a pretty nice case, is it worth selling?

Not worth selling IMO due to the rear 80mm fan. There are many $30 cases that have 120mm front and rear fans. So I'd recommend just reusing the case. Which means that you can get this PSU:
Corsair 400CX 400W PSU (http://www.newegg.com/Product/Product.aspx?Item=N82E16817139008) - $60

More than enough amperage on the +12V rail to power that kind of system.

[MrCrispy]

Just got home and checked my old case. It seems to have an Antec Truepower 430W PSU - http://www.tweaknews.net/reviews/antectruepower430/.

20A on +12V. It is not 80plus certified and is quite old, but I'm assuming its still good enough for my system, right?

[Danny Bui]

Just got home and checked my old case. It seems to have an Antec Truepower 430W PSU - http://www.tweaknews.net/reviews/antectruepower430/.

20A on +12V. It is not 80plus certified and is quite old, but I'm assuming its still good enough for my system, right?

No. The Truepower series were well known for their above average failure rate due to a poor combination of caps and cooling design. Combined with the old age of the PSU and low quality of said PSU, I do not think that PSU is even capable of providing 15A let alone 20A on the +12V rail. Considering that hard drives can take up to 3A on startup, it's simply not a good idea to reuse that old PSU.

[MrCrispy]

Got it. But if each drive needs 3A on startup, that would mean the Earthwatts 380 with 17A can't even power 6 drives?

This is confusing. Even the 500W Earthwatts, which I'm sure can run 6+ drives, has only 17A on +12V (http://www.newegg.com/Product/ShowImage.aspx?CurImage=17-371-007-04.jpg&Image=17-371-007-09.jpg%2c17-371-007-03.jpg%2c17-371-007-04.jpg%2c17-371-007-05.jpg%2c17-371-007-06.jpg%2c17-371-007-07.jpg%2c17-371-007-08.jpg&S7ImageFlag=0&WaterMark=1&Item=N82E16817371007&Depa=1&Description=Antec%20earthwatts%20EA500%20500W%20Power%20Supp ly).

[Danny Bui]

Got it. But if each drive needs 3A on startup, that would mean the Earthwatts 380 with 17A can't even power 6 drives?

This is confusing. Even the 500W Earthwatts, which I'm sure can run 6+ drives, has only 17A on +12V (http://www.newegg.com/Product/ShowImage.aspx?CurImage=17-371-007-04.jpg&Image=17-371-007-09.jpg%2c17-371-007-03.jpg%2c17-371-007-04.jpg%2c17-371-007-05.jpg%2c17-371-007-06.jpg%2c17-371-007-07.jpg%2c17-371-007-08.jpg&S7ImageFlag=0&WaterMark=1&Item=N82E16817371007&Depa=1&Description=Antec%20earthwatts%20EA500%20500W%20Power%20Supp ly).

The EA380 has 27A on the +12V rail.
The EA500 has 34A on the +12V rail.

See where it says "+12V1, +12V2 max load: 408W"? divide that number 12 and you get the total amperage available on the +12V rail. So in this case, 34A on the +12V ral. And if you check my sig, you can see that my EA380 is power several drives without any problems.