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Would a antec 450 watt PSU be enoug power for this build?

Last response: in Components
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April 11, 2012 5:00:11 AM

I have the following for the setup:

-i3 2100 cpu
-MSi motherboard
-4 gb of ram
- saphire radeon vapor 4850
- 250gb hard drive
- dvd rom
-couple of regular 120 mm fans.


would my antec 450 watt PSu be enough power? id like to avoid buying another one.
a b ) Power supply
April 11, 2012 5:07:01 AM

Should power it easily.

The 450vp is not the most efficient nor the highest quality power supply that's out there but it's still loads better than most of the crappier PSU's for the same price.

It'll work. Have fun!
April 11, 2012 5:09:33 AM

lilotimz said:
Should power it easily.

The 450vp is not the most efficient nor the highest quality power supply that's out there but it's still loads better than most of the crappier PSU's for the same price.

It'll work. Have fun!


quick question i got all these components for 280$ good deal you think? just curious if i got screwed or a good deal. without the psu of course was 280.
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a b ) Power supply
April 11, 2012 5:25:37 AM

Not enough information to know if your PSU will support your system. The power on the 12v rail is more important than the total wattage of the PSU for a gaming system.

You need to know if the 12v rail has enough wattage for the card. Look at the sticker on the side of the PSU for the per-rail ratings. You're looking for something like +12v- the XXa, which is 12 volts @ XX amps. multiply the voltage by the amperage to get the wattage, and compare that to the power your card draws under load.
April 11, 2012 5:30:11 AM

quilciri said:
Not enough information to know if your PSU will support your system. The power on the 12v rail is more important than the total wattage of the PSU for a gaming system.

You need to know if the 12v rail has enough wattage for the card. Look at the sticker on the side of the PSU for the per-rail ratings. You're looking for something like +12v- the XXa, which is 12 volts @ XX amps. multiply the voltage by the amperage to get the wattage, and compare that to the power your card draws under load.


This is the psu i have
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

it says dual 12V rails
a c 139 ) Power supply
April 11, 2012 5:35:14 AM

It's a pretty good deal.

CPU: Intel Core i3-2100 3.1GHz Dual-Core Processor ($99.99 @ Microcenter)
Motherboard: MSI H61M-P23 (B3) Micro ATX LGA1155 Motherboard ($64.99 @ Amazon)
Memory: G.Skill NS 4GB (2 x 2GB) DDR3-1333 Memory ($22.99 @ Newegg)
Hard Drive: Western Digital Caviar Blue 250GB 3.5" 7200RPM Internal Hard Drive ($69.99 @ Newegg)
Optical Drive: Lite-On iHAS324-99 DVD/CD Writer ($19.99 @ Newegg)
Total: $277.95

Not knowing the exact parts this is just a guess but it should be in the ballpark.

Best solution

a c 139 ) Power supply
April 11, 2012 5:38:01 AM
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You're good to go on the PSU.

30Amps +12V better than average budget PSU.
April 11, 2012 5:40:53 AM

WR2 said:
It's a pretty good deal.

CPU: Intel Core i3-2100 3.1GHz Dual-Core Processor ($99.99 @ Microcenter)
Motherboard: MSI H61M-P23 (B3) Micro ATX LGA1155 Motherboard ($64.99 @ Amazon)
Memory: G.Skill NS 4GB (2 x 2GB) DDR3-1333 Memory ($22.99 @ Newegg)
Hard Drive: Western Digital Caviar Blue 250GB 3.5" 7200RPM Internal Hard Drive ($69.99 @ Newegg)
Optical Drive: Lite-On iHAS324-99 DVD/CD Writer ($19.99 @ Newegg)
Total: $277.95

Not knowing the exact parts this is just a guess but it should be in the ballpark.


oh this is the board http://www.newegg.com/Product/Product.aspx?Item=N82E168...

and kingston hyper x ram.
April 11, 2012 5:42:18 AM

oh and plus the saphire vapor 4850 i got with it too. :) 
a c 139 ) Power supply
April 11, 2012 5:44:11 AM

Those parts would add a few extra bucks to the overall cost.

I'm guessing nearly all the parts were used?
It's probably a 'fair price' @ $280.
April 11, 2012 10:56:22 PM

WR2 said:
Those parts would add a few extra bucks to the overall cost.

I'm guessing nearly all the parts were used?
It's probably a 'fair price' @ $280.


Sorry to bring this back to life, but if i were to purchase a radeon 6870 would this psu still be ok with this build? jjust checking
a c 139 ) Power supply
April 11, 2012 11:00:17 PM

Yes it would.
That PSU would support all the part's you're looking at.
April 11, 2012 11:02:54 PM

WR2 said:
Yes it would.
That PSU would support all the part's you're looking at.


So even with a radeon 6870 instead of the 4850 GPU?
a c 139 ) Power supply
April 11, 2012 11:11:11 PM

Even with the HD 6870.

Sapphire Radeon HD 6870 website
The recommendation for a 500W PSU covers a wide range of systems and quality/performance of PSUs. Although the Antec is just 450W it's a quality PSU that can outperform some budgety 500W PSUs.
April 11, 2012 11:15:16 PM

WR2 said:
Even with the HD 6870.

Sapphire Radeon HD 6870 website
The recommendation for a 500W PSU covers a wide range of systems and quality/performance of PSUs. Although the Antec is just 450W it's a quality PSU that can outperform some budgety 500W PSUs.


thanks appreciate your help greatly.!
April 11, 2012 11:15:48 PM

Best answer selected by k1ngkev1n1.
a c 139 ) Power supply
April 11, 2012 11:21:30 PM

Your welcome. Stop back if you have any more questions.
!