PC-9821Ra20 (1995), with a Pentium Pro 200, 80MB Ram, Buffalo SXM-F card for FM, Adaptec SCSI card, and Windows 98.

Yes it runs Touhou

#PC98 #Retrocomputing
@Pawlicker What FM soundchip does it have? & can it play Touhou music without missing any instruments or drums?
@silsinn9821 According to this documentation it's a YMF288/OPN3. I don't think the first five #touhou games ever used custom #ADPCM which is the most notable removal of this cheaper #OPNA imo, so probably should be fine for #PC98Touhou I guess? That is if Wikipedia is correct that the RSS and custom ADPCM are separate (even if both are using ADPCM) ​

@Pawlicker
BUFFALO SXM-F

@mima @Pawlicker The so-called standalone ADPCM channel is called #ADPCM-B by some technical documents, while the RSS is called #ADPCM-A. That Japanese doc you linked says it retains the 6 rhythm channels (the RSS), however it warns that the left/right panning has been reversed (unsure if this only affects the RSS or if it also affects the FM channels). It also says that soundcard handles PCM sound, so I wonder if it can support the #P86DRV & #PPZ8 PCM drivers used by some #PC98 VNs like #Grounseed & #EVEBurstError (as superior substitutes for the missing ADPCM-B). While ADPCM-B only supported hard left & right panning, the external PCM in the #PC-9801-86 card had 127 levels of panning for each side (when using the PPZ8 driver, this got reduced to 4 levels of panning for each of 8 virtual PCM channels provided by the driver's software mixer).
@silsinn9821 @mima The PPZ8 PCM/similar would eventually get ported to the CS4231 PCM chip used in the CanBe/-118 sound system.

Only "speak board" games use the ADPCM that was removed, and it was disabled on the -86 unless you installed a RAM upgrade.
@mima @Pawlicker Also yes, none of the five #PC98Touhou games ever used #ADPCM-B so that soundcard should be fine.
@silsinn9821 the sxm-f is a ymf288 based card designed to add sound to pc98s with only a cs4231. with both it'll work with the fmp music disks and similar even.