Is 500w enough?

[Black Mamba]

I have a no name 500w Power supply will it be enough for,
AMD Athlon 64 X2 7750
GIGABYTE GA-MA78GM-US2H AM2+/AM2 AMD 780G HDMI Micro ATX
ZALMAN CNPS9700
CORSAIR 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit
SAPPHIRE 100256L Radeon HD 4670 1GB 128-bit GDDR3 PCI Express 2.0 x16
Generic Memory Module Cooler Beige
and 4 case fans
300gig ide hard drive
floppy drive
dvd burner

thx in advance

 

[theAnimal]

How many amps does it have on the 12V rails?

 

[Black Mamba]

Specs are
AC-IP: 115 / 230V 8 / 4 A 60 / 50 Hz
DC : +3.3V | +5V +12V | -12V -5V | +5VSB
O/P: 24A | 35A 24A | 0.8A 0.5A | 2.0A

 

[hotroderx]

I would get a name brand power supply. No name power supply's (assuming it came in a case free) are normal of poor quality. I think with that power supply your really gonna be pushing it I have a similar system with a Thermaltake 500watt power supply and I am pushing it With name brand. I would recommend buying a decent power supply 500watts are greater ( gotta remember if the power supply goes it can take the entire system with it).

 

[Black Mamba]

What do you think of this one?
Rosewill Stallion Series RD600N-2SB-SL-BK 600W ATX12V

 

[Noya]

Your PSU if fine.

Though if you want to spend $70 for one:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139004

Or here's a quality cheapy ($10 rebate and 20% promo code = $38 free ship)
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139008

 

[mi1ez]

Don't buy a rosewill.

500W is plenty for your system, but a named power supply will be more reliable.

 

[Black Mamba]

Thx for the info

 

[Zenthar]

Should be enough for the current system, but could seriously impair future upgradability. For example, I wouldn't assume it could run a Phenom II + ATI 4870.

 

[jsc]

For the 12 volt load:
The Zalman 9700 implies that you are going to be OC'ing - figure 10 amps for the CPU.
Figure 7 - 8 amps for the graphics card.
Figure 3 amps total for the HD and DVD drive and a couple of amps for the fans.

That's very, very close to the maximum power rating of the 12 volt output.

Since it is a no-name PSU, the maximum outputs are undoubtedly rated at 25 C. (basically little more than room temperature). Under load, Under load PSU internal temp will increase, reducing the the power output.

Try it and see. The first sign that you may need a better PSU will be that the PC will run fine with regular 2D graphics programs, but will do "random" resets and reboots while gaming.