When was the last time anyone came across a computer using a Micro PS3 power supply? (no relation to the Sony game console)

Never heard of it

@JourneymanGeek Same lateral size as a standard ATX supply, but with a depth of 100mm instead of 140mm

silverstonetek.com/techtalk_cont.php?area=en&tid=10055

Will soon upgrade the Pentium III 450 to a Pentium III 600. Only issue is, the seller I bought that from gave it only a passive heat sink, and from what I read, this model runs hotter than others so it should have an active cooler, so I had to get a Slot 1 cooler to run with it.

It has no case cooling, the case is entirely passively cooled, the only fans are/were the PSU, the CPU cooler, and (now) the GPU fan

Trisquel Linux seems like it's the best OS to install, the specs say it's compatible with an i686 CPU or higher (Pentium Pro or II)

You are booting the DVD in EFI mode, instead of Legacy / BIOS / CSM mode. Switch the mode that you're booting from, and it should allow you to (assuming you have 3 or less partitions already)

what exactly is the nature of this restriction?

Booting off EFI doesn't allow what?

apparently there's this issue kb.paragon-software.com/article/…. that windows with MBR can only have max primary partitions of 4. (one of which can be an extended partition which can have any number of logical partitions). But there's no mention there of a relationship between booting UEFI vs Legacy.

UEFI booting requires the boot loader to be on GPT volumes (not partitions). Legacy booting is restricted to an MBR format, which only allows up to 4 primary partitions. To get around this, you would set partition 4 as an Extended partition, then create Logical partitions inside it. Traditionally, you couldn't boot OSes from Logical partitions; the Extended partition is like a Linux LVM Volume Group - it isn't where the data is stored, it's the container for the file storage

If you boot the install DVD in Legacy mode, it will expect to install on an MBR-formatted drive; if you boot it in UEFI mode, it will expect to install on a GPT-formatted drive

There are questions on Super User about it, cause I wrote some of the answers :P

superuser.com/questions/374013/… - Partitioning disks

Things to try: superuser.com/questions/1391569/…

I can't see an option in the UEFI/BIOS for legacy on/off. If I get an error of "Windows cannot be installed to this disk. The selected disk has an MBR partition table. On EFI systems, Windows can only be installed to GPT disks" I suppose that means I must be booting it EFI

Thing is Windows 10 boots

So how can Windows 10 be booting?

pixies

@barlop It's called "CSM"

@gparyani legacy and CSM is same thing.

It's disabled by default on almost all pre-built computers because it doesn't work with Secure Boot, which is now required for Windows logo certification, but enabled by default on custom motherboards for PC builders.

you mean CSM is disabled by default?

@barlop What I meant was, the option in the BIOS may be called "CSM" instead of "legacy", which may be why you're not finding that option.

No it has neither

@barlop On pre-built PCs with the Windows logo sticker, yes

@barlop Make sure Secure Boot is disabled, it may be hidden

How can secure boot be disabled if you're saying that windows 10 requires it

and windows 10 boots up