• Enter here for a chance to win a custom MechWarrior 5: Mercenaries themed PC powered by Intel!

Question Can Psu handle my build? Help:(

May 14, 2021
12
0
10
0
Can Psu handle my build?

Mobo an old Asrock N68-VS3 UCC
Amd Phenom II X3 720 - 95 watts
2×4gb RAM
500gb HDD
Nvidia gts 450
2 fans

My psu specs (500watts)

https://ibb.co/GMpXqKg

+3.3V has 25A
+5V has 19A
It has 2 +12V rail:
+12v1 has 20A
+12v2 has 20A
-12V has 0.5A
-5vsd has 3A
 

David0ne86

Upstanding
Mar 11, 2021
322
80
290
10
I don't see why not to be honest. Unless it's one of those no brand psu that declare 500 w but they turn off when you're barely drawing 200 in the best case scenario, you shouldn't have any issues with it. You should technically have 480w total on the 12 v, so i think you're safe. That build should barely draw 300 w.

Cpu has a 95w tdp, 450 has a tdp of 110w, mobo probably draws 30 to 50, the fans don't really matter. So yeah, 250/300w total tdp.
 
Last edited:
May 14, 2021
12
0
10
0
I don't see why not to be honest. Unless it's one of those no brand psu that declare 500 w but they turn off when you're barely drawing 200 in the best case scenario, you shouldn't have any issues with it. You should technically have 480w total on the 12 v, so i think you're safe. That build should barely draw 300 w.
But google says: The NVIDIA GeForce GTS 450 video card requires a 400 Watt or greater power supply with a minimum of 22 Amps on the +12 volt rail according to NVIDIA for a single GPU, so you are covered for one card



Says you need a min of 22 amps in 12v rail



The psu brand sir is: Energy Optimus MACH 500K V2.3 | 500 Watts Power Supply Unit
 

David0ne86

Upstanding
Mar 11, 2021
322
80
290
10
Then you replied to your question by yourself. If it requires 22 a on the 12 v rail, your psu won't be enough im afraid. Wattage isn't everything in a psu. Where i was checking (techpowerup) it said it gave a suggestion of 300w. I guess that since your psu is a cheap one, even if it says 500w it has bad ampere values. So yeah, its one of those fake 500w. Also you didn't specify you had 2 cards.

EDIT: https://www.anandtech.com/show/3909/nvidias-geforce-gts-450-pushing-fermi-in-to-the-mainstream/16 As you can see you'd draw 150w in idle and 250 in full load.

Bah, imo you can still manage with that psu, but if you said you checked the nvidia website and they say you need 22 ampere on the 12 volt go with that, i mean, it's nvidia official statement afterall.
 
Last edited:
May 14, 2021
12
0
10
0
Then you replied to your question by yourself. If it requires 22 a on the 12 v rail, your psu won't be enough im afraid. Wattage isn't everything in a psu. Where i was checking (techpowerup) it said it gave a suggestion of 300w. I guess that since your psu is a cheap one, even if it says 500w it has bad ampere values. So yeah, its one of those fake 500w. Also you didn't specify you had 2 cards.

EDIT: https://www.anandtech.com/show/3909/nvidias-geforce-gts-450-pushing-fermi-in-to-the-mainstream/16 As you can see you'd draw 150w in idle and 250 in full load.

Bah, imo you can still manage with that psu, but if you said you checked the nvidia website and they say you need 22 ampere on the 12 volt go with that, i mean, it's nvidia official statement afterall.
So the 2nd +12V has no use at all sir? Thanks for answering me
 

ASK THE COMMUNITY

TRENDING THREADS