BIG power supplies ????

deutschnaftula · 08-27-2009, 06:58 PM

I always reed that in today's computing, we need BIG power supplies but it's really interesting, I see a lot of good commuter's selling with very low watts can you please explain why? For example on Newegg this computer, it only has 250 watts and it is a very good pc, so do we need big power supplies or not?

thank you

Tumbleweed36 · 08-27-2009, 07:07 PM

You link only leads to a page full of some special deals on NewEgg. Don't know what rig you are looking at with a power supply like that.

deutschnaftula · 08-28-2009, 07:11 AM

surry this is the link http://www.newegg.com/Product/Product.aspx?Item=N82E16883155004

Phædrus2401 · 08-28-2009, 07:46 AM

They can get away with a crap PSU because there's no real graphics card in there--just an Intel 4500 something chipset. The reason you need "big" power supplies now is for when you have high-end gaming graphics cards, which can need between 550 and 750w PSUs to run stably, and for SLI and CrossFire we recommend 850-1000w. The Dell doesn't have those massive power demands, and so can get away with a 250w PSU, though I'd use at least 350-400 if it were my computer.

It's more than just wattage that matters, however. You must also take into account amps on the +12V rail, the efficiency, what type of PFC it has, if it has one +12V rail or multiple, what protections it has, and if the manufacturer is reputable. Read the thread at the top of this forum for more information.

08-27-2009, 06:58 PM	#1 (permalink)
deutschnaftula Registered User Join Date: Jul 2009 Posts: 15 OS: xp	BIG power supplies ???? I always reed that in today's computing, we need BIG power supplies but it's really interesting, I see a lot of good commuter's selling with very low watts can you please explain why? For example on Newegg this computer, it only has 250 watts and it is a very good pc, so do we need big power supplies or not? thank you

08-27-2009, 07:07 PM	#2 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,661 OS: XP Professional	Re: BIG power supplies ???? You link only leads to a page full of some special deals on NewEgg. Don't know what rig you are looking at with a power supply like that. __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread.

08-28-2009, 07:11 AM	#3 (permalink)
deutschnaftula Registered User Join Date: Jul 2009 Posts: 15 OS: xp	Re: BIG power supplies ???? surry this is the link http://www.newegg.com/Product/Product.aspx?Item=N82E16883155004 Last edited by deutschnaftula; 08-28-2009 at 07:14 AM.

08-28-2009, 07:46 AM	#4 (permalink)
Phædrus2401 Hardware Tech Team Join Date: Mar 2009 Location: New Orleans Posts: 3,822 OS: Vista Ultimate x64 SP1 + Ubuntu 9.04 My System	Re: BIG power supplies ???? They can get away with a crap PSU because there's no real graphics card in there--just an Intel 4500 something chipset. The reason you need "big" power supplies now is for when you have high-end gaming graphics cards, which can need between 550 and 750w PSUs to run stably, and for SLI and CrossFire we recommend 850-1000w. The Dell doesn't have those massive power demands, and so can get away with a 250w PSU, though I'd use at least 350-400 if it were my computer. It's more than just wattage that matters, however. You must also take into account amps on the +12V rail, the efficiency, what type of PFC it has, if it has one +12V rail or multiple, what protections it has, and if the manufacturer is reputable. Read the thread at the top of this forum for more information. __________________ Good PSU brands: Corsair, SeaSonic, CWT, PC Power and Cooling, Thermaltake Toughpower, CoolerMaster Real Power Pro On 80+ Certification - PSU Information and Selection - Power Supply Myths You don't get what you don't pay for.