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02-23-2004, 09:25 PM
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#1 |
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Member (7 bit)
Join Date: Jul 2002
Location: Baton Rouge, LA.
Posts: 73
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Do I really need a Power Supply with PFC?
I am in the middle of my first build. I am gathering my parts close. I have not decided on a PSU yet. I have two Maxtor 6Y120M0 S-ATA HDD's that I'll be powering, so I need S-ATA.
How important is PFC? I noticed that most of the brand name units don't have PFC. I am leaning towards the Enermax EG465AX-VE(W)FCA. Opinions? Comments? Suggestions? Regards, BG
__________________
ASUS P4C800E-DELUXE | P4 3.2C | XP PRO SP1A | 2 X Maxtor 6Y120M0 120GB S-ATA HDD RAID 0 | 2 x OCZ 512MB DDR400 Gold Edition Rev.2 Enhanced Latency PC3700 | Plextor PX-708A/SW-BL | Plextor PX-Premium/SW-BL | Enermax EG475P-VE-SFMA | ATI RADEON 9800XT | Lian-Li PC-65B | Logitech Elite | MX510 | Linksys BEFSX41 | APC UPS BE725BB | VS G90FB | Klipsch ProMedia Ultra 5.1 |
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02-23-2004, 09:46 PM
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#2 |
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Banned
Join Date: Jul 2000
Location: Bakersfield,CA
Posts: 7,761
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No it is not important and the Enermax unit you listed is a superior power supply with top notch construction. By the way, the reason you do not need it, is that in the USA you are not charged or metered for Reactive Power on a residence.
PFC PFC (power factor correction; also known as power factor controller) is a feature included in some computer and other power supply boxes that reduces the amount of reactive power generated by a computer. Reactive power operates at right angles to true power and energizes the magnetic field. Reactive power has no real value for an electronic device, but electric companies charge for both true and reactive power resulting in unnecessary charges. PFC is a required feature for power supplies shipped to Europe. In power factor correction, the power factor (represented as "k") is the ratio of true power (kwatts) divided by reactive power (kvar). The power factor value is between 0.0 and 1.00. If the power factor is above 0.8, the device is using power efficiently. A standard power supply has a power factor of 0.70-0.75, and a power supply with PFC has a power factor of 0.95-0.99. PFC is not used solely for computer power supplies. In other industries, PFC equipment is used to reduce the reactive power produced by fluorescent and high bay lighting, arc furnaces, induction welders, and equipment that uses electrical motors |
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02-23-2004, 11:12 PM
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#3 |
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Member (7 bit)
Join Date: Jul 2002
Location: Baton Rouge, LA.
Posts: 73
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morriswindgate:
Thanks for the quick response. I tend to get lost in all those TLA's. I'll order the Enermax tomorrow. I believe it might come with S-ATA adaptors.
Thanks. |
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02-23-2004, 11:20 PM
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#4 |
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Banned
Join Date: Jul 2000
Location: Bakersfield,CA
Posts: 7,761
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I was just looking at the manufactures site and it does have PFC
http://www.maxpoint.com/products/pow...ma/3_4xfma.htm |
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02-23-2004, 11:32 PM
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#5 | |
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Member (7 bit)
Join Date: Jul 2002
Location: Baton Rouge, LA.
Posts: 73
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Quote:
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02-24-2004, 01:56 PM
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#6 |
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Member (7 bit)
Join Date: Jul 2002
Location: Baton Rouge, LA.
Posts: 73
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ENERMAX Noisetaker Series EG475P-VE-SFMA on the way from NEWEGG.
Thanks again for the help. |
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02-24-2004, 02:33 PM
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#7 |
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Shiro Usagi
Premium Member
Join Date: Sep 1999
Location: Kaneohe, Hawaii
Posts: 34,002
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Hey Burt...seen any Graboids lately?
  Cricket
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02-24-2004, 02:41 PM
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#8 | |
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Member (7 bit)
Join Date: Jul 2002
Location: Baton Rouge, LA.
Posts: 73
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Quote:
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