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Question on my PC's Power Supply

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September 27, 2011 6:50:25 PM

Hi, I was looking for some advice on the current PSU I have in my build. I'm going to be adding some more hardware so I was curious if the current PSU could handle it. Thanks in advance.

Current Build

Asus M4A79XTD Evo MoBo
AMD Phenom II X4 945 3.0 (no OC)
4x2 GB Crucial Ballistix DDR3 Mem
ATi Radeon HD 5770 GPU
2 140mm case fans and 2 120mm Added fans
1x OCz 60gb SSD for OS and other System Programs
2x 7200rpm Seagate SATA HHD's (160 gb, 320 gb)
USB Wireless KB and Mouse
Wired Xbox 360 Controller

This is all running on a Fatality Pro Series 550 Watt PSU.

This is what I want to add:

Blackmagic Intensity Pro Pci-e card
2x RAID 0 WD 1 TB Caviar Black HHD's (for the recorded video storage)

The PC is about 18 months old, I bought it used 6 months ago from a friend for $460 (he needed a laptop for college. Right now it is mainly used for Some Gaming, Music (the 320gb hhd), and browsing. I plan on using it for Video capturing from my Xbox 360 and some PC games.

Basically, I know the PSU is plenty now, but will it be enough for the 2 RAID HHD's and the extra PCI card? (and the stress on the HHD's from capturing hd video).

Thanks for the help.

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a c 87 ) Power supply
September 27, 2011 7:02:02 PM

Each hard disk uses 12 watts or less power. To this, add the PCI card power. Your present setup should be able to handle it.

Upgrade the PSU only after trying out for a few weeks. If you need to upgrade, go for a Corsair 650 watts or 750 watts.

http://www.newegg.com/Product/Product.aspx?Item=N82E168... (Modular)
http://www.newegg.com/Product/Product.aspx?Item=N82E168... (Modular)

Modular helps better cable management and better air flow.
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September 27, 2011 7:09:05 PM

malevolent215 said:
Hi, I was looking for some advice on the current PSU I have in my build. I'm going to be adding some more hardware so I was curious if the current PSU could handle it. Thanks in advance.

Current Build

Asus M4A79XTD Evo MoBo
AMD Phenom II X4 945 3.0 (no OC)
4x2 GB Crucial Ballistix DDR3 Mem
ATi Radeon HD 5770 GPU
2 140mm case fans and 2 120mm Added fans
1x OCz 60gb SSD for OS and other System Programs
2x 7200rpm Seagate SATA HHD's (160 gb, 320 gb)
USB Wireless KB and Mouse
Wired Xbox 360 Controller

This is all running on a Fatality Pro Series 550 Watt PSU.

This is what I want to add:

Blackmagic Intensity Pro Pci-e card
2x RAID 0 WD 1 TB Caviar Black HHD's (for the recorded video storage)

The PC is about 18 months old, I bought it used 6 months ago from a friend for $460 (he needed a laptop for college. Right now it is mainly used for Some Gaming, Music (the 320gb hhd), and browsing. I plan on using it for Video capturing from my Xbox 360 and some PC games.

Basically, I know the PSU is plenty now, but will it be enough for the 2 RAID HHD's and the extra PCI card? (and the stress on the HHD's from capturing hd video).

Thanks for the help.


Try this HDD, better then the WD IMO: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Try this PSU Calculator: http://images10.newegg.com/BizIntell/tool/psucalc/index...
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a b ) Power supply
September 27, 2011 7:09:08 PM

Even the most power hungry HDDs only consume some 10 Watts. You're fine. Top of my head I guesstimate an approx. 400W usage on your system with the aforementioned upgrades.
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a b ) Power supply
September 27, 2011 7:25:57 PM

The info. below will tell you everything you need to know about the PSU requirements for current or future builds.

As far as PSUs are concerned, be informed. Before you buy any PSU read accurate, objective PSU reviews at reputable sites such as www.jonnyguru.com or www.hardwaresecrets.com on the EXACT model PSU that you are interested in as some brands have good and poor quality PSUs.

You can also get an accurate rating of how much PSU power is required for your current or future system at the PSU calculator link below. Once you know the total PSU watts required then you need to confirm that the 12v rail has enough amps. to support your Vid card(s) and the rest of the PC system.

There are several websites that show the Vid card power consumption in watts. Divide the watts by 12 to determine the amps. required on the 12v rail(s). Add 15 amps for the rest of the PC on the 12v rail and you now know the Minimum total 12v rail amps required under full load. It's best to have at least 5-10 amps. reserve on the 12v rail available under full load so the PSU is not loaded to 100%.

It's also worth noting that people often misunderstand the 80% power rating. This is a rating of the PSU's energy efficiency not it's output. 80% plus PSUs use less grid power to produce the same PC power. If it's 80% Bronze, Silver or Gold the cost savings on electricity is pretty small between Bronze, Silver and Gold unless you are paying very high rates for electricity so any 80% rated quality PSU is fine even if not Gold. For those who leave their PC on 24/7 a quality 80% PSU is a good investment.


http://extreme.outervision.com/psucalculatorlite.jsp

http://www.guru3d.com/article/geforce-gtx-560-ti-sli-re...

http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_5...
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September 27, 2011 7:33:47 PM

Don't use the WD Black edition drives they don't raid correctly due to TLER being enabled (google the issue) . I would reccomend you go with a Samsung Spinpoint drive, or a Seagate.

As far as the PSU question, yours should be more than enough. That 5770 sips power and the rest of your system is light weight.
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October 4, 2011 2:12:28 PM

Best answer selected by malevolent215.
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a c 87 ) Power supply
October 4, 2011 2:31:58 PM

Thank you!
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