[The Power Supply Thread]

On 10/23/2022 at 10:57 AM, tucansam said:

Have modern SFX PS's caught up to ATX's in terms of build quality, wattage, and bomb-proof-ness?  I need to replace a decade-old ATX PS as I'm trying to solve a strange issue that might be PS related.  I have room for another ATX, but moving to an SFX would allow me quite a bit more cable management and customization, every little bit of room matters.

 

This would be a 10th gen i7 with 15 spinners and two NVMe SSDs, along with a super lower power VGA card and an LSI HBA.  Several fans, nothing major.

 

Cold start power-ons and parity checks are of course my main concern, when power draws are maxed.

 

As an aside, I am reading through this thread now, but any recommendations on a good PS in an appropriate wattage would be appreciated. 

 

Thanks.

 

This might be too late for a reply, but to answer the general question of SFX vs ATX:

 

To paint broad strokes, SFX & ATX today can overlap on quality & watts with two exceptions: 1) ultra-short millisecond-type GPU spikes / transients beyond the rating (due to smaller capacitors on SFX models) and 2) availability of 850W+ SFX PSUs. 

 

SFX are still quite a bit pricier & rarer (e.g., availability, region), though. Still, 650W from an SFX PSU = 650W from an ATX PSU, all other things equal.  To actually compare SFX vs ATX: it'd have to be a model vs model comparison, as the overlap goes both ways: good SFX beats bad ATX, but good ATX beats bad SFX. The PSU's test results matter more than the form factor, which is an improvement from the earliest SFX days.

[The Power Supply Thread]

On 12/27/2021 at 9:27 AM, NAStyBox said:

I went from gold to gold. 

Old - https://www.amazon.com/Seasonic-Semi-Modular-Control-Application-SSR-550LM/dp/B08WNL4ZFJ
New - https://www.amazon.com/Corsair-RM850x-Fully-Modular-Supply/dp/B08R5JPTMZ

 

Then the UPS load went from 229 to 225. 

 

I think that's due to 80+ ratings being minimums. So PSUs even just below Platinum still are rated Gold. The Corsair RM850X actually is Platinum-level efficient at 20% load / 170W (Platinum minimum: 90%; achieved: 90.5%), but it's just a bit short for 50% load / 425W (Platinum minimum: 92%; achieved: 91%) and 100% load / 850W (Platinum minimum: 89%; achieved: 86%). 

 

For those PSUs, according to the 115V efficiency charts by SeaSonic and Corsair:

1. Seasonic SSR-550 (80+ Gold): This PSU is ~90% efficient at 250 watts.
2. Corsair RM850x (80+ Gold): This PSU is ~91.5% efficient at 250 watts. 

1.5% loss @ ~250W is 3.75 watts additional loss, which looks close to your data.

[Guide: Setting up a Time Machine Share on your Unraid 6.7 Server]

On 8/4/2022 at 12:18 PM, SpencerJ said:

A brand new @SpaceInvaderOne video for 2022 is now live! 

 

 

https://unraid.net/mac-backups

Thank you for sharing this. I noticed this video & the Unraid guide ask us to put Time Machine on one drive only. 
 

Is this something that might become more flexible in the future so that we could allow larger macOS backups to be spread onto more drives?

Or it’s a more technical limitation why TM backups are one-drive-only?