Very similar to "PC Partner AP133AAS13-B950C"
Like this one https://www.ebay.com/itm/124159661089

Did the VIA Northbridge chip (near the Processor Socket 370) not come with a heatsink originally?

retrofan01 wrote on 2022-12-03, 16:44:

Also, am I right in thinking that I would need to scrape off the orange residue off the CPU and underside of the heatsink and apply a whole new layer of thermal paste in order to get it up and running?

Yes

PCPartner AP133AS13-B957C is a closer match

Thanks both of you.

gerwin wrote on 2022-12-03, 17:18:

Did the VIA Northbridge chip (near the Processor Socket 370) not come with a heatsink originally?

The motherboard was given to me way back when and it's never had a heatsink since it's been in my possession. Should the Northbridge chip have one and if so, are they hard to come by nowadays?

There´s nothing on the pcb to mount / fix a heatsink and there are no remnants of glue so I guess there never was a heatsink attached to the northbridge.
It´s probably supposed to be cooled by the CPU-cooler´s airstream.

retrofan01 wrote on 2022-12-03, 19:43:

gerwin wrote on 2022-12-03, 17:18:

Did the VIA Northbridge chip (near the Processor Socket 370) not come with a heatsink originally?

The motherboard was given to me way back when and it's never had a heatsink since it's been in my possession. Should the Northbridge chip have one and if so, are they hard to come by nowadays?

Yes, nevermind, it was because I have a similar motherboard with a heatsink there. But when doing an image search on "VIA Apollo Pro", there appear plenty motherboards without one.

from the archives it does appear to be a AP133AAS13-950C/AP133AAS13-B950C variant: http://web.archive.org/web/20010321001115/htt … 0/prod/950C.htm
according to them the AP133AS13-C957 looks like this: http://web.archive.org/web/20000831023736/htt … k/prod/c957.htm
no manual for the B950 variant but there is one for the C950....