PSU, two rails?

Xycron · 01-15-2006, 07:15 PM

How exactly do having 2 12V+ rails work? Obvoisly it means there are 2 rails, but do have the conenctors that work on 12 work on one rail and the other half work on the other? Or what?

+12V1@18A, +12V2@16A,

How good would that be? I also have a fan and some lights pluged in(lighs that came with the case, lots of them though) and I'm getting three more fans, I have 2 harddrives, and two CD rom drives. I hardly ever use the second harddrive and can unplug it, same with the second CD-rom drive. I'll prabally get a HD fan also, and two cold colthode lights, the two cold cathode lights prabally wont plug into the power supply though.

Right nwo I have a really crappy PSU, 30on the 5v and 18on the single 12, so its going to be a inprovment obvoisly, but I dont have everything pluged in right now, and I plan on getting the three extra fans and all off that.

Basically how decent is it? If I get it i'm going to be tretching my money out a bit.

Dngrsone · 01-15-2006, 09:52 PM

Having two rails means you have two different 12vdc regulators providing power to your system. Typically, one rail will power your motherboard and video card, and the other handles the peripheral devices.

This accomplishes two things-- one, your motherboard's power will not be affected by sudden load changes caused by peripherals such as CDROMs spinning up to read. Second, using two smaller-amperage regulators is more efficient and creates less heat than using a more robust high-amperage regulator.

Xycron · 01-16-2006, 04:54 AM

So then That's prety decent? Becuase If it is, then I'll prabally get it, its cheap and has pretty blue lights lol.

Xycron · 01-17-2006, 01:20 AM

Bump, anyone else with more info or reasureance...

[-0MEGA-] · 01-17-2006, 01:23 AM

how much does that cost?

Xycron · 01-17-2006, 01:26 AM

40$ Unshipped, It's from a forum member that im buying it from, its normally just under 80$unshipped, here's more info and pics.

http://www.coolermaster-usa.com/Cool...s.aspx?pid=902

I thought hte little power meter thing was kind of nifty, Although my case is black and I'm alreay using the one 3inch drive slot...Might mod it onto my side panel though.

**ceewi1** · 01-17-2006, 01:57 AM

Looks like a great deal, i'd say go for it. In fact, I almost bought one myself, until I found this one on ebay.

Dngrsone · 01-18-2006, 05:12 AM

I'd go for it.

01-15-2006, 07:15 PM	#1 (permalink)
Xycron banned Join Date: Sep 2005 Posts: 2,099	PSU, two rails? How exactly do having 2 12V+ rails work? Obvoisly it means there are 2 rails, but do have the conenctors that work on 12 work on one rail and the other half work on the other? Or what? +12V1@18A, +12V2@16A, How good would that be? I also have a fan and some lights pluged in(lighs that came with the case, lots of them though) and I'm getting three more fans, I have 2 harddrives, and two CD rom drives. I hardly ever use the second harddrive and can unplug it, same with the second CD-rom drive. I'll prabally get a HD fan also, and two cold colthode lights, the two cold cathode lights prabally wont plug into the power supply though. Right nwo I have a really crappy PSU, 30on the 5v and 18on the single 12, so its going to be a inprovment obvoisly, but I dont have everything pluged in right now, and I plan on getting the three extra fans and all off that. Basically how decent is it? If I get it i'm going to be tretching my money out a bit.

01-17-2006, 01:23 AM	#5 (permalink)
[-0MEGA-] Diamond Member Join Date: Nov 2004 Location: Concord, NH Age: 20 Posts: 27,082	how much does that cost? __________________ Desktop // Laptop Core 2 Quad Q9550 @ 4.0GHz // Core 2 Duo P8400 2.26GHz Asus Rampage Formula X48 // Intel PM45 ATI 4870X2 2GB GDDR5 // 512MB GDDR3 9800M GTS 4GB (2x 2GB) DDR2 940 // 4GB DDR3 800 750GB SATAII w/32MB // 200GB SATAII 7200RPM Creative SB X-Fi Titanium Fatal1ty SilverStone 750W +12V@60A 3DMark06: 21391 // 9179

01-17-2006, 01:57 AM	#7 (permalink)
ceewi1 Moderator Join Date: Dec 2005 Location: Melbourne, Australia Age: 21 Posts: 5,279	Looks like a great deal, i'd say go for it. In fact, I almost bought one myself, until I found this one on ebay. __________________ CPU: Core 2 Duo E6600 / MOBO: Gigabyte 965P-DS3 / GPU: Gigabyte HD4870 RAM: 2GB G.Skill F2-6400CL4D-2GBPK / HDD: 2TB Total HDD / PSU: Antec NeoPower 480W Cheap PSUs - 2% of system costs, responsible for 28% of system deaths As Sealed Stick was removed, lost or damaged, it shall be out of warranty validity. - The "Warranty void if removed" sticker on numerous CoolerMaster PSUs. Useful PSU Guides

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

01-15-2006, 09:52 PM	#2 (permalink)
Dngrsone VIP Member Join Date: Dec 2005 Location: Centrally located far from everywhere Posts: 544	Having two rails means you have two different 12vdc regulators providing power to your system. Typically, one rail will power your motherboard and video card, and the other handles the peripheral devices. This accomplishes two things-- one, your motherboard's power will not be affected by sudden load changes caused by peripherals such as CDROMs spinning up to read. Second, using two smaller-amperage regulators is more efficient and creates less heat than using a more robust high-amperage regulator.

01-16-2006, 04:54 AM	#3 (permalink)
Xycron banned Join Date: Sep 2005 Posts: 2,099	So then That's prety decent? Becuase If it is, then I'll prabally get it, its cheap and has pretty blue lights lol.

01-17-2006, 01:20 AM	#4 (permalink)
Xycron banned Join Date: Sep 2005 Posts: 2,099	Bump, anyone else with more info or reasureance...

01-17-2006, 01:26 AM	#6 (permalink)
Xycron banned Join Date: Sep 2005 Posts: 2,099	40$ Unshipped, It's from a forum member that im buying it from, its normally just under 80$unshipped, here's more info and pics. http://www.coolermaster-usa.com/Cool...s.aspx?pid=902 I thought hte little power meter thing was kind of nifty, Although my case is black and I'm alreay using the one 3inch drive slot...Might mod it onto my side panel though.

01-18-2006, 05:12 AM	#8 (permalink)
Dngrsone VIP Member Join Date: Dec 2005 Location: Centrally located far from everywhere Posts: 544	I'd go for it.