diff --git a/contrib/windows/installer/dosbox-x.reference.setup.conf b/contrib/windows/installer/dosbox-x.reference.setup.conf
index f18a89841a0..e1758b255eb 100644
--- a/contrib/windows/installer/dosbox-x.reference.setup.conf
+++ b/contrib/windows/installer/dosbox-x.reference.setup.conf
@@ -196,7 +196,7 @@ logfile     =
 #DOSBOX-X-ADV:#                                          weitek: If set, emulate the Weitek coprocessor. This option only has effect if cputype=386 or cputype=486.
 #DOSBOX-X-ADV:#                             bochs debug port e9: If set, emulate Bochs debug port E9h. ASCII text written to this I/O port is assumed to be debug output, and logged.
 #                                         machine: The type of machine DOSBox-X tries to emulate.
-#                                                    Possible values: hercules, cga, cga_mono, cga_rgb, cga_composite, cga_composite2, tandy, pcjr, ega, vgaonly, svga_s3, svga_s3vision864, svga_s3vision868, svga_s3trio32, svga_s3trio64, svga_s3trio64v+, svga_s3virge, svga_s3virgevx, svga_et3000, svga_et4000, svga_paradise, vesa_nolfb, vesa_oldvbe, amstrad, pc98, pc9801, pc9821, fm_towns, mcga, mda.
+#                                                    Possible values: hercules, cga, cga_mono, cga_rgb, cga_composite, cga_composite2, tandy, pcjr, ega, vgaonly, svga_s3, svga_s386c928, svga_s3vision864, svga_s3vision868, svga_s3trio32, svga_s3trio64, svga_s3trio64v+, svga_s3virge, svga_s3virgevx, svga_et3000, svga_et4000, svga_paradise, vesa_nolfb, vesa_oldvbe, amstrad, pc98, pc9801, pc9821, fm_towns, mcga, mda.
 #                                        captures: Directory where things like wave, midi, screenshot get captured.
 #                                        autosave: Enable the auto-save state feature. Specify a time interval in seconds, and optionally a save slot or start and end save slots.
 #                                                    For example, "autosave=10 11-20" will set a 10-second time interval for auto-saving, and the save slots used will be between 11 and 20.
diff --git a/dosbox-x.reference.conf b/dosbox-x.reference.conf
index 6439bd450f6..2c151fc6b1a 100644
--- a/dosbox-x.reference.conf
+++ b/dosbox-x.reference.conf
@@ -106,7 +106,7 @@ logfile =
 #                          Possible values: winlogo, winmenu, alttab, ctrlesc, ctrlbreak, ctrlaltdel.
 #      synchronize time: If set, DOSBox-X will try to automatically synchronize time with the host, unless you decide to change the date/time manually.
 #               machine: The type of machine DOSBox-X tries to emulate.
-#                          Possible values: hercules, cga, cga_mono, cga_rgb, cga_composite, cga_composite2, tandy, pcjr, ega, vgaonly, svga_s3, svga_s3vision864, svga_s3vision868, svga_s3trio32, svga_s3trio64, svga_s3trio64v+, svga_s3virge, svga_s3virgevx, svga_et3000, svga_et4000, svga_paradise, vesa_nolfb, vesa_oldvbe, amstrad, pc98, pc9801, pc9821, fm_towns, mcga, mda.
+#                          Possible values: hercules, cga, cga_mono, cga_rgb, cga_composite, cga_composite2, tandy, pcjr, ega, vgaonly, svga_s3, svga_s386c928, svga_s3vision864, svga_s3vision868, svga_s3trio32, svga_s3trio64, svga_s3trio64v+, svga_s3virge, svga_s3virgevx, svga_et3000, svga_et4000, svga_paradise, vesa_nolfb, vesa_oldvbe, amstrad, pc98, pc9801, pc9821, fm_towns, mcga, mda.
 #              captures: Directory where things like wave, midi, screenshot get captured.
 #              autosave: Enable the auto-save state feature. Specify a time interval in seconds, and optionally a save slot or start and end save slots.
 #                          For example, "autosave=10 11-20" will set a 10-second time interval for auto-saving, and the save slots used will be between 11 and 20.
diff --git a/dosbox-x.reference.full.conf b/dosbox-x.reference.full.conf
index 41935fab15b..1dfc4c77208 100644
--- a/dosbox-x.reference.full.conf
+++ b/dosbox-x.reference.full.conf
@@ -196,7 +196,7 @@ fileio      = false
 #                                          weitek: If set, emulate the Weitek coprocessor. This option only has effect if cputype=386 or cputype=486.
 #                             bochs debug port e9: If set, emulate Bochs debug port E9h. ASCII text written to this I/O port is assumed to be debug output, and logged.
 #                                         machine: The type of machine DOSBox-X tries to emulate.
-#                                                    Possible values: hercules, cga, cga_mono, cga_rgb, cga_composite, cga_composite2, tandy, pcjr, ega, vgaonly, svga_s3, svga_s3vision864, svga_s3vision868, svga_s3trio32, svga_s3trio64, svga_s3trio64v+, svga_s3virge, svga_s3virgevx, svga_et3000, svga_et4000, svga_paradise, vesa_nolfb, vesa_oldvbe, amstrad, pc98, pc9801, pc9821, fm_towns, mcga, mda.
+#                                                    Possible values: hercules, cga, cga_mono, cga_rgb, cga_composite, cga_composite2, tandy, pcjr, ega, vgaonly, svga_s3, svga_s386c928, svga_s3vision864, svga_s3vision868, svga_s3trio32, svga_s3trio64, svga_s3trio64v+, svga_s3virge, svga_s3virgevx, svga_et3000, svga_et4000, svga_paradise, vesa_nolfb, vesa_oldvbe, amstrad, pc98, pc9801, pc9821, fm_towns, mcga, mda.
 #                                        captures: Directory where things like wave, midi, screenshot get captured.
 #                                        autosave: Enable the auto-save state feature. Specify a time interval in seconds, and optionally a save slot or start and end save slots.
 #                                                    For example, "autosave=10 11-20" will set a 10-second time interval for auto-saving, and the save slots used will be between 11 and 20.