this post was submitted on 14 Jun 2024
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42
Can a System Handle Brown/Blackouts on only the GPU? (infosec.pub)
submitted 5 months ago by [email protected] to c/selfhosted
33 comments fedilink hide all child comments
 

I am planning to build a multipurpose home server. It will be a NAS, virtualization host, and have the typical selfhosted services. I want all of these services to have high uptime and be protected from power surges/balckouts, so I will put my server on a UPS.

I also want to run an LLM server on this machine, so I plan to add one or more GPUs and pass them through to a VM. I do not care about high uptime on the LLM server. However, this of course means that I will need a more powerful UPS, which I do not have the space for.

My plan is to get a second power supply to power only the GPUs. I do not want to put this PSU on the UPS. I will turn on the second PSU via an Add2PSU.

In the event of a blackout, this means that the base system will get full power and the GPUs will get power via the PCIe slot, but they will lose the power from the dedicated power plug.

Obviously this will slow down or kill the LLM server, but will this have an effect on the rest of the system?

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[–] [email protected] 1 points 5 months ago* (last edited 5 months ago)

Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:

Fewer Letters More Letters
NAS Network-Attached Storage
PCIe Peripheral Component Interconnect Express
PSU Power Supply Unit
PoE Power over Ethernet
SSL Secure Sockets Layer, for transparent encryption

5 acronyms in this thread; the most compressed thread commented on today has 4 acronyms.

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