ATX 450W P4 sufficient to run GTX 750 Ti, HDD and SSD?

[asrock_user]

I have a 450w psu with 2 x SATA and 2 x 4Pin cables and I'm not sure if I need a more powerful one for the following system:

ASrock H61M-VG3 P1.60
Intel core i3-3220 3.3 GHz 3300 Mhz
HDD - 500GB - SATA
SSD - 120 GB - SATA
GPU - Asus GTX 750 Ti
RAM - 2x4GB hyperx savage
DVD - SATA

Please help with these questions:

1. Is the 450W psu sufficient for this system?

2. If yes: since the psu has only to 2 SATAs and I have 3 sata components, is it ok to use a 4pin-to-sata power cable for the DVD-ROM?

Thanks!

 

[Gze]

What's the amperage on the 12V rail? It should say on the side of the PSU. Most likely it should be fine.

 

[R_1]

1.yes the 750 ti draws all its power from the PCIe slot. no extra power connections needed.
2. yes

http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-750-ti/specifications
down at the bottom it ask for 300W PSU

 

[asrock_user]

What's the amperage on the 12V rail? It should say on the side of the PSU. Most likely it should be fine.

Hi Gze, here's a picture of all the details:

http://pasteboard.co/1239RRiI.jpg

 

[R_1]

that may be a little too tight, you'll want 20 amps on the 12v not 16v.
lemme double check.
yeah 20 amps on the 12V. I'm afraid that is a very old PSU and will need to be replaced.
http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html

this is the definitive list of power supplies listed from great tier 1 to avoid tier 4.

 

[asrock_user]

1.yes the 750 ti draws all its power from the PCIe slot. no extra power connections needed.
2. yes

http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-750-ti/specifications
down at the bottom it ask for 300W PSU

So i don't have to worry about the ssd/hdd/dvd drives either?

 

[Gze]

The GTX 750 Ti has a very low power consumption. It only consumes around 60W during gaming which is quite a bit under the 192W of power your psu is able to supply on the 12V.

However, the quality of the power supply is debatable. It may be lacking some safety features, this however shouldn't affect the performance.

Make sure when buying a GTX 750 Ti to get one that doesn't need a 6/8 pin connector.

 

[asrock_user]

Thanks very much for your help guys!

I think for the graphics card i'll go with https://www.asus.com/Graphics-Cards/GTX750TIPH2GD5/specifications/.

As for the PSU, looks like i'll have to replace it with something safer/better, the only problem is i have no idea what to pick from the list.

Can you please recommend something decent & cheap that will eliminate the low amps and safety problems?

 

[Gze]

Thanks very much for your help guys!

I think for the graphics card i'll go with https://www.asus.com/Graphics-Cards/GTX750TIPH2GD5/specifications/.

As for the PSU, looks like i'll have to replace it with something safer/better, the only problem is i have no idea what to pick from the list.

Can you please recommend something decent & cheap that will eliminate the low amps and safety problems?

Anything Tier 3 and above, just sort by price and find the cheapest that's also on the list.