how many watt psu do i need for this setup?

Hello im gonna upgrade my comp soon. And i was wondering if a 500wat psu would cover all of this. I include link to most of it.


G.SKILL 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory

AMD Athlon 64 X2 4000+ Brisbane 2.1GHz 2 x 512KB L2 Cache Socket AM2 65W Dual-Core Processor
IM GONNA OC IT SO DONT SAY IT WILL BOTTLE NECK MY VIDEO CARD. ppl have said that these easily get to 2.8

CPU cooler
ZEROtherm BTF90 92mm Silent UFO CPU Cooler

Video card
SAPPHIRE 100215L Radeon HD 3870 512MB 256-bit GDDR4 PCI Express 2.0 HDCP Ready CrossFire Supported Video Card

200 gig HD

4x 80mm fans

1x 120mm fan

This is the psu i was talking about
7 answers Last reply
More about watt setup
  1. Arghhh dont get Rosewill they are shocking...

    Something tier3 or higher is the way to go
  2. the 500w psu in the link will be more than enough... for this system 400w wold be plenty but theres nothing wrong with leaving some headroom for upgrades in the future.

    as for roswell. i dont know if their a good manufacturer... never used them, never heard of them so wouldnt get one.

    go for one around 400w or above from a reputable manufacturer. crosshair and seasonic are my personal favorites and im sure other people here would be happy to recommend good manufacturers.

    tier 1, 2 and most of tier 3 from the post above are what i would call good models and theyre what u should be aiming for if u want your psu to last and have stable output voltages (cheaper models can fluctuate by up to 2 volts causing unexplained crashes and instability).

    if some one is going to tell you a good quality 400w psu is not enough for this set up they havnt done their homework
  3. so this would be a better psu than the on in my link this is stilla 500 wat but it was on that like u gave me for tier3. this will still fit my budget. Im just on a tight budget, This psu leaves me with money in cents lo

    here it is

    so that would be better? cause i can still afford that.
  4. that one would be beter

    if you want to save a few ££ or $$ then this one will do. its not in the higher tiers on the link above but i wouldnt be badly embarrased if i has one
  5. K since starting a new thread over my question is silly,so my apologies for asking it here :p I already own a UMAX 450W psu for this config:
    Intel E4300 1.8ghz C2D, Intel G965ryck mobo, 1GB trancsend ram 800MHZ ddr2,no graphic card.I plan on getting 3850 in 4-5 months. I know this wattage should be enough but since tiers are so important,how do i check what tier my psu belongs to. Any links or is it written on the psu itself?? Thx!!
  6. the "tier" isn't set in stone, it's based mostly on popular opinion. the link above is a sticky on another website. the psu section here has one too. if your psu isn't on the list, it might still be good, but its not a well known quality psu.
  7. Get an Antec Earthwatts, Seasonic, or Corsair PSU around the 400-450watt range depending on price. Corsair is the shiniest, Earthwatts is old school, and Seasonic is both of their OEM. :D
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