Does my PSU have enough power for the addition of my drives?

[Axeonelite]

Power supplys and figure out usage is the one area I am lacking in my PC knowledge so any help would be appreciated. I currently have an EVGA GT Series 850W power supply. I don't believe I have an issue with the main parts of my system, but I am going to be installing 8 - 7200rpm 3TB Hard Drives this evening. The PSU has enough SATA to make that work, I am just not sure if I will be overloading any specific rail or power delivery of this power supply.  I am not attached to this power supply in any way,. I just got it on a good sale a while back so I am more than willing to change it out if needed. Any help would be appreciated. Thanks in advance. 

 

SPECS

• CPU: i9-12900k (stock for now but will be undervolting)
• COOLER: Deepcool Assassin IV
• MOBO: Asus Z790-V PRIME WIFI
• RAM: G.Skill Ripjaws S5 32GB (2 X 16GB) DDR5-6000 PC5-48000 CL36
• GPU: EVGA GeForce RTX 3070 XC3 Ultra
• PSU: EVGA 850 GT Series 
• CASE: Antec P101 Silent
• FANS: Included with case 2x120mm in the front and 1x140mm in the rear.
• ACCESSORIES: 9211-8i HBA for running the drives
• DRIVES to be installed: 8 x 3TB Dell/Seagate Constellation ES.2 7.2K RPM 3.5"

[Tetras]

You should be fine, the overall consumption of your PC won't trouble that PSU, so there will be headroom and I should imagine those drives won't all be running at the same time anyway.

 

In the datasheet I found, it looks like around 5-10 watts idle and 10-15 watts loaded. The biggest risk you face is likely to be @ boot time.

 

I must say though, if you built your PC to be quiet, adding 8 enterprise hard drives seems like an odd choice. Wouldn't you better off with a NAS?

[Axeonelite]

1 hour ago, Tetras said:

You should be fine, the overall consumption of your PC won't trouble that PSU, so there will be headroom and I should imagine those drives won't all be running at the same time anyway.

 

In the datasheet I found, it looks like around 5-10 watts idle and 10-15 watts loaded. The biggest risk you face is likely to be @ boot time.

 

I must say though, if you built your PC to be quiet, adding 8 enterprise hard drives seems like an odd choice. Wouldn't you better off with a NAS?

 

The drive capacity was my main reason for picking the case. I run my Plex Server as well as backup several generations of family photos, and do hobby game development on the side.  I knew it was not going to be silent, but it checked all the other boxes I needed for my build.  But thank you for the info! 

[Dedayog]

On 2/21/2024 at 3:31 PM, Axeonelite said:

 

The drive capacity was my main reason for picking the case. I run my Plex Server as well as backup several generations of family photos, and do hobby game development on the side.  I knew it was not going to be silent, but it checked all the other boxes I needed for my build.  But thank you for the info! 

You pick a PSU based on cou and you, not drives.   Even 10 drives won't really impact PSU needs vs CPU/GPU.