Bought a HP 450 Slimline for backup. No PSU. Don't know BIOS. Will the machine handle Windows 11?

[AilingRailing]

Bought an HP 450-a191na as a back-up.

Can you guys answer 3 questions, please?

1. Reference # for plug-in PSU.

2. Is a BIOS installed?

3. Can the machine handle Windows 11?

[Prométhée · Accepted solution]

hi

HP Slimline 450-a191na Desktop PC Product Specifications

External 65 W (100V-240V)

724264-002

A/C Adapter - Barbera EPS 65W, 19.5V/87% eff

849650-001

AC Adapter - Barbera, 65W89%Eff, 19.5V 3P/RC, LiteON

849650-002

AC Adapter - Barbera, 65WEPS, 89%Eff, 19.5V 3PRC, Chicony

849650-003

AC Adapter - Barbera, 65WEPS, 89% Eff, 19.5V, 3P/RC, Delta

several references here

https://partsurfer.hp.com/Search.aspx?searchText=P1J70EA

"2. Is a BIOS installed?"

I do not understand your question
but if it is a used computer, we can not know what the seller did
A computer must have a motherboard, and a bios installed!
But we can't know it here

3. Can the machine handle Windows 11?

Warning

Windows 11 on devices that don't meet minimum system requirements 
We risk having serious problems, probably updates, security problems, we do not really know what else

If the installation goes well for some, for others it can be complicated
go back to windows 10 - HP Support Community - 8200306

my laptop isnt coming on after i take it off - HP Support Community - 8238058

Re: [OMEN 17t-cb000] Windows 11 not fully compatible with BI... - HP Support Community - 8173257

Re: desktop will not boot up after attempted windows 11 upgr... - HP Support Community - 8237646

HP icore5, and generation, windows 11 installed now it won't... - HP Support Community - 8238507

Hp also might not provide any update:

HP PCs – Support for Windows 11 | HP® Customer Supportbr>

Think carefully, before taking the risk, see the experiences of other users, see if it can be interesting, or if you can wait to have a new computer later, 100% compatible!
Windows 10 remains one of the best systems, and can be used for quite a while.

I have performed the installation with a compatible computer ..
And I can not take full advantage of the more or less interesting features, because you have to have a certain material
https://www.microsoft.com/en-us/windows/windows-11-specifications
So far, so there is nothing extraordinary about this system
So if the computer is not compatible, you have little interest in using it ..
In some cases, we can have more problem than something else (performance etc), it is better to wait until most of the bugs are solved.
And even better to have a 100% compatible computer, in order to be able to take advantage of the available features
Now, if you want to give it a try, first plan to use specialized software, and make a ghost copy of your installation.

[AilingRailing]

Hi, Promethee, (sorry, can't do the accents on this old Windows 7 machine I am left with!).

Thanks for the info on the power-supplies.

The spec says the machine comes with freeDOS 2.0, so I understand I have to load Windows.

I believe you are telling me to be very careful about Windows 11, so will attempt to load Windows 10.

Many thanks for your input,

kind regards,

Ken Grayling

[Prométhée]

Thanks
no big deal, for accents, although i shouldn't be a windows 7 problem, rather country region setup, you don't use an accent?
Yes, windows 11 could work, but you may have some concerns
the drivers are available for windows 10

https://support.hp.com/us-en/drivers/selfservice/hp-slimline-450-a100-desktop-pc-series/8667915