TechBits 9 - Power Supplies Demystified (Part 2 of 2)

I this episode of TechBits, I provide a crash course in understanding power supplies: everything from multiple rails, to available connectors, to wattages and features.

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Category:

Science & Technology

Tags:

• Jeremy
• Blum
• techbits
• ultimate
• computers
• PSU
• power
• supply
• PFC
• AC
• DC
• electricity
• PCI
• express
• video
• cards
• hard
• drives

[mexinugget69]

hey can i plug my cpu heatsink fan power (4pin) into my mobo(3pin)?????

[sciguy14]

@mexinugget69 yes

[alex14469]

Great video but I have a question, my psu only has 1 six pin pcie connector but the video card I want to get requires 2 of them, my psu meets power and current requirements but does not have enough adapters, is it safe to use 2 molex to 6pin for a long period of time?

[sciguy14]

should be fine

[moonshiry]

pretty close? i was planning for a 620 watt for

amd phenom II 955

Asus M4A785TD-V EVO

xfx hd 5870

4 gb ram

western digital 500gb black caviar hard drive

LG SATA 22XDVD RW

win 7 64bit professional

[yamum248]

Hey I'm building a new computer and I'm just wondering what PSU to get either a corsair 1000HX or a thermaltake toughpower 1200w or any other psu. Here are my specs:

4 SATA HDD's running in RAID 5

12gb of ddr3 ram

Gigabyte x58-extreme

i7-950

Thermaltake Armour+ LCS (ps hooking up all fans and the LCS)

dvd/cd rw drive

ATI 5850

Thanks alot

[sciguy14]

correct

[IntegratedDerivative]

I see. So there is no such thing as a "12v rail cord"?

[sciguy14]

rails are handled within the PSU. You don't have to worry about plugging into a specific location on the PSU.

[IntegratedDerivative]

So if I only have one 12v rail, where would I plug it in to? Would all the parts that require the 12v rail still receive the power, being as you can only plug it into 1 spot?