General > General Technical Chat
What is the motivation of intel to want PSUs that are 12V only?
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tooki:
LiPo isn’t the ideal technology for this. They don’t like being stored at full charge, they can’t be trickle charged, and they’re fairly expensive. The reason for LiPo’s popularity is energy density for portable devices. They make NO sense for stationary items where weight and size aren’t primary concerns.

A 12V lead-acid or 10 NiMH cells (of the kind specially made for this type of application) would make way more sense.
Circlotron:

--- Quote from: mariush on March 09, 2020, 02:39:50 pm ---I think it would be somewhat shortsighted to standardize some voltage based on the number of cells of a particular battery technology.

--- End quote ---
Makes me think of vacuum tubes that after a while settled on mostly 6.3V filaments so they could operate off a 6 volt 3 cell lead acid car battery. That standard has been around for nearly a hundred years.
NiHaoMike:
What I would like to see on motherboards and GPUs is a hookup to the PROCHOT line, to instantly throttle the frequency to the lowest level when running on backup power. That can make a huge savings in the battery needed for backup. I'm surprised the data centers haven't looked into that, where in addition to the batteries, downsizing the backup generator is more huge savings.
Berni:

--- Quote from: NiHaoMike on March 10, 2020, 02:47:45 am ---What I would like to see on motherboards and GPUs is a hookup to the PROCHOT line, to instantly throttle the frequency to the lowest level when running on backup power. That can make a huge savings in the battery needed for backup. I'm surprised the data centers haven't looked into that, where in addition to the batteries, downsizing the backup generator is more huge savings.

--- End quote ---

Datacenters have a different use case.

They want to stay fully operational no matter what because there costumers get very grumpy when the service drops out. The contracts they signed with there costumers contain the agreed upon uptime. So suddenly throttling down there compute performance to 25% would likely not be seen by the costumers as being fully operational and would count towards some sort of downtime. Failing to meet contract obligations is more expensive that the large piles of diesel fuel they are pouring into those generators.

For us home users its a different thing. We just need the thing to shut down safely without loosing data or messing up the filesystem.
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