Probably MB not wired correctly
Plan your life wisely, you'll be dead before you know it.
Eep386 wrote on 2018-05-19, 18:12:The 90C33 is basically a 90C31 with a VLB / local-bus interface and support for up to 2 MB of memory. IIRC its acceleration engine is very similar to the 90C31's; about on par with a CL-GD5428/5429 performance wise. I'll agree with BSA Starfire about the 90C3x's generally very good DOS speed and compatibility.
Found some quite good and rare win311/95 2D benchmarks as wintach etc. on some Hungary site. The GD5428 was indeed much! better then the c31 in terms of GDI performance (ISA cards)
1) VLSI SCAMP 311 | 386SX25@TI486SXLC2-50@60 | 16MB | CL-GD5428 | CT2830| SCC-1 | MT32 | Fast-SCSI AHA 1542CF + BlueSCSI v2/15k U320
2) SIS486 | 486DX/2 66(@80) | 32MB | TGUI9440 | LAPC-I
