GideonTech.com Forums

  • June 23, 2017, 08:48:42 PM
  • Welcome, Guest
Please login or register.

Login with username, password and session length
Pages: [1]   Go Down

Author Topic: Pushing the limit on PSU?  (Read 5840 times)

quietus

  • Case Mod Weenie
  • *
  • Karma: +0/-0
  • Offline Offline
  • Posts: 2
Pushing the limit on PSU?
« on: March 04, 2009, 09:10:38 PM »

Hello all, I did a search and found some good 3rd party links to check the power required for a PC build.  Unfortunately, they didnt have my CPU listed or mobo.

I built a slim case based on the parts I already have and just collecting dust. Normally I would take my time is building a case and double check but this case is for me and while building the case, I decided to have a few beers (ok, a lot ,lol)  I noticed that I could make the case thinner due to the fact my PSU is thinner than normal (I didnt even check the power on the PSU - THOUP! :(  )

Here are the specs of my

PSU
#  ATX12V 275W.
# Dimension: 5.75" x 3.25" x 2.5"(D) x (W) x (H).
# Cooling: 12V Internal Fan.
# MTBF: 50,000 Hours.
# Approval: UL, FCC.
# Input range: 90V~132Vac or 180V~253Vac.
# Frequency: 47~63Hz.
# Input Current: 275W 6A/4A @ 115/230 Vac.


This needs to power:

Mobo:      Asus M2n68-AM
CPU:       AMD Athlon X2 5050e (energy efficient @ 45W)
RAM:       4GB DDR2 @ 667MHz
HD:         120GB SATA
DVD-RW   

I am not going to install PCIe vid card to save some power since it has onboard video to test it out.

I do have a perfect micro PSU but it is too big and wont fit, hmmmmm  unless I some how mount it over the PCI slots or will that damage the mobo?

 
« Last Edit: March 04, 2009, 09:13:01 PM by quietus »
Logged

chase!

  • Elite Modder
  • ****
  • Karma: +55/-3
  • Offline Offline
  • Posts: 2,998
  • The Internet!
Re: Pushing the limit on PSU?
« Reply #1 on: March 04, 2009, 11:46:55 PM »

You'll be fine as long as it's named brand like Antec and has steady output.
Logged

merlinicorpus

  • Global Moderator
  • Elite Modder
  • *****
  • Karma: +1341/-1341
  • Offline Offline
  • Posts: 4,655
  • One with the corn.
    • merliniworks
Re: Pushing the limit on PSU?
« Reply #2 on: March 05, 2009, 03:04:15 AM »

I will respectfully disagree with my colleague.  While I don't normally give much credit to MTBF, 50,000 is an appallingly low number for a PSU.  Any decent one is rated at >100,000.  Your build isn't demanding, but 275W is very, very small amount of power to play with.  Since you are probably dealing with a less than top shelf product, that 275W is probably optimistic anyway.
Logged

MaxamusCrasious

  • Elite Modder
  • ****
  • Karma: +4/-0
  • Offline Offline
  • Posts: 2,747
    • The Site Of Doom
Re: Pushing the limit on PSU?
« Reply #3 on: March 05, 2009, 07:07:43 AM »

Ditto, 275w is pushing it REALLY close.

Reminds me of when I challenged my PicoPSU (75w?) with a 5'' LCD (5V) , 733mhz PIII, Old TNT2 Video Card, 2x NIC,  20GB Laptop HDD and 52x 5.25'' CD-RW + Keyboard and mouse.

It worked... sorta, then the CD drive spun up... :lol:

bliq

  • Elite Modder
  • ****
  • Karma: +6/-6
  • Offline Offline
  • Posts: 1,901
Re: Pushing the limit on PSU?
« Reply #4 on: March 06, 2009, 03:38:38 PM »

On the other hand, think of how much gear we used to run on a similar amount of power... in 2000, I had a 300W (it was sparkle power so it was probably a true 300W) PSU running 2 P3-800s, 3 SCSI hard drives, a CD rom, on a L440GX motherboard with 4 sticks of registered ram, onboard dual SCSI controllers, networking, video and a 64bit PCI RAID controller plus 7 case fans in a 2U enclosure.  I'd say I was probably using more power than what quietus is proposing.  The real wildcard is the quality of the PSU- is it really putting out 275W?

ps, we also once ran 16 drives (1.6TB baby!!), 2 3ware 8port RAID controllers, CDRW, dual athlon MP1800s from a 450W PSU.  That sucker is actually still in use today, 5 years later.
Logged

chase!

  • Elite Modder
  • ****
  • Karma: +55/-3
  • Offline Offline
  • Posts: 2,998
  • The Internet!
Re: Pushing the limit on PSU?
« Reply #5 on: March 06, 2009, 04:56:07 PM »

On the other hand, think of how much gear we used to run on a similar amount of power... in 2000, I had a 300W (it was sparkle power so it was probably a true 300W) PSU running 2 P3-800s, 3 SCSI hard drives, a CD rom, on a L440GX motherboard with 4 sticks of registered ram, onboard dual SCSI controllers, networking, video and a 64bit PCI RAID controller plus 7 case fans in a 2U enclosure.  I'd say I was probably using more power than what quietus is proposing.  The real wildcard is the quality of the PSU- is it really putting out 275W?

ps, we also once ran 16 drives (1.6TB baby!!), 2 3ware 8port RAID controllers, CDRW, dual athlon MP1800s from a 450W PSU.  That sucker is actually still in use today, 5 years later.
Exactly. He's not even running a video card and his CPU is 45w rather than most 65w+ and 1 HDD/1CD-ROM. I fix computers all the time that have PSU already in them with simular PSU sizes and not so power efficient parts. I would just see if it works with what you have, if it doesn't you know what to upgrade.
Logged
Pages: [1]   Go Up
 

Page created in 0.059 seconds with 19 queries.