Jump to content


Photo
- - - - -

Power supplies and wattage. What does it mean?


  • Please log in to reply
20 replies to this topic

#1 KMAK263

KMAK263

    New Member

  • Members
  • 40 posts

Posted 05 December 2006 - 07:04 AM

Power supplies. Does that wattage number just mean that if needed, that
PSU can consume that much power? I mean, can a 300 watt and a 1000 watt
PSU show up as the same value on an electric bill if you do the same
thing on both of them?

#2 Guest_Tmod_*

Guest_Tmod_*
  • Guests

Posted 05 December 2006 - 07:18 AM

Power supplies. Does that wattage number just mean that if needed, that
PSU can consume that much power? I mean, can a 300 watt and a 1000 watt
PSU show up as the same value on an electric bill if you do the same
thing on both of them?

It is not that it will consume that amount but rather how much it can put out.

Say you put the two a 300 & a 1000 in your rig and you really only needed 200 watts to run everything then, Then technically the 1000 is overkill.

But one thing to keep in mind is that the 1000 would run more efficient and run cooler then it's 300 counterpart.

The rule of the thumb is buy the best PSU you can with the funds available.

You won't be sorry for getting something bigger as long as it is a quality unit.

Tmod

#3 KMAK263

KMAK263

    New Member

  • Members
  • 40 posts

Posted 05 December 2006 - 07:27 AM

Nuts, I should have forked over 40 more for a Corsair HX 620 watt then. I've been hearing people are getting lower framerates with an 8800 GTX even if their PSU meets the minimal requirements.

#4 Guest_Tmod_*

Guest_Tmod_*
  • Guests

Posted 05 December 2006 - 07:30 AM

Nuts, I should have forked over 40 more for a Corsair HX 620 watt then. I've been hearing people are getting lower framerates with an 8800 GTX even if their PSU meets the minimal requirements.

Yeah right now I would say you are at the lower end of any power requirements and the fancier stuff you get the more they use.

Can you return or pawn it off on someone and get something with a little more umph?

Tmod

#5 KMAK263

KMAK263

    New Member

  • Members
  • 40 posts

Posted 05 December 2006 - 07:35 AM

Heh, can't pawn it because my friends are using cheapo PSUs and wouldn't be willing to pay more for one that had the same wattage as theirs. If I RMA to Newegg, it would take a few weeks and I don't have a spare so that'd be a few weeks with no computer for me.

Man, being a college student has brought out the cheap in me.

#6 Syngensmyth

Syngensmyth

    OCC Curmudgeon

  • Members
  • PipPipPipPipPip
  • 2572 posts
  • Location:Lake Wobegon

Posted 05 December 2006 - 07:36 AM

I've decided you can't be:

1. Too rich.
2. Too handsome.
3. Too nice.
4. Too over PSU'd

You can be
1. Too poor.
2. Too ugly
3. Too mean
4. Too under PSU'd
Obituary: DFI LANPARTY Expert: Killed by rogue PSU / DFI LanParty Ultra-D: Mysterious Death
Living: Gigabyte 965 with e6400 / 2 -Ultra-D's & Opti 165 still going
Gateway 7811FX Notebook and lovin' it!
Build Guide - USB Boot - OC Guide

#7 KMAK263

KMAK263

    New Member

  • Members
  • 40 posts

Posted 05 December 2006 - 07:39 AM

I only got it cause I never intended on getting an SLI setup. Never thought the day would come when 520 was too little for a single card setup.

#8 Syngensmyth

Syngensmyth

    OCC Curmudgeon

  • Members
  • PipPipPipPipPip
  • 2572 posts
  • Location:Lake Wobegon

Posted 05 December 2006 - 08:11 AM

I've never used one, but they do make little "add on PSU's" that fit into drive bays and they are not overly expensive. (Sorry don't have a link) I'm going to keep my eye out and pick a deal on one. I've been in situations where everything is fine except I added just 1 too many things. That little extra guy would have saved me some work. Don't know how well they work. It is a thought.
Obituary: DFI LANPARTY Expert: Killed by rogue PSU / DFI LanParty Ultra-D: Mysterious Death
Living: Gigabyte 965 with e6400 / 2 -Ultra-D's & Opti 165 still going
Gateway 7811FX Notebook and lovin' it!
Build Guide - USB Boot - OC Guide

#9 KMAK263

KMAK263

    New Member

  • Members
  • 40 posts

Posted 05 December 2006 - 08:36 AM

Yeah I know what you're talking about, I've seen one. It was for SLI though, but I think it's probably fine to just plug it in a single PCI express power connector.

I think it's the video card that will be pushing my PSU as I've seen even SLI setups with a 520 watt PSU before. I still have hope that it'll be able to power my future 520. Technodan's doing it with a 510 but he's using a PC P&C aka the caviar of PSUs and I forgot to ask him how his gaming tests turned out. Or maybe I can get the 8600 or whatever's coming out. They should probably consume power in the range that the 78 and 7900s did.

#10 Yellowbeard

Yellowbeard

    Member

  • Members
  • PipPip
  • 345 posts

Posted 05 December 2006 - 09:00 AM

Based on what we have seen in the lab, our HX520 is plenty of power for an 8800GTX. Are you actually seeing some specific issues?

#11 Praz

Praz

    Posting Nut

  • Moderator
  • PipPipPipPipPipPip
  • 9584 posts
  • Gender:Male
  • Location:Midwest, USA

Posted 05 December 2006 - 10:40 AM

I'm not familiar with how the PCI-E connectors are branched so it might require some load balancing. But I would be surprised if the HX 520 had any difficulty powering your system with the addition of an 8800 series card.

#12 Yellowbeard

Yellowbeard

    Member

  • Members
  • PipPip
  • 345 posts

Posted 05 December 2006 - 11:15 AM

NEVER FEAR, POWER GUY IS HERE! Actually, he's at the Corsair forum. But, he did post a diagram of how our rail seperation is done. And, apparently our PSU does a good job with load balancing based on a couple of reviews I have seen.

RAILS LINK