Not sure what Tetrium is going on about -- I am merely sharing an anomaly that occurred on its own, without intervention. The Cyrix DX4 was never a stand-up performer, unlike the Cyrix 5x86's. I do not plan on replicating these results.
To answer some questions,
This Cyrix DX4 runs at 100 Mhz. Speedsys does not always calculate the correct cpu speed, which coincides with Harekiet's comment about a buggered up hardware timer, although I've never seen SpeedSys bugger up on the rating score like this.
L1 cache is present, but it is likely out of the scale's range, probably in the hundreds regime. This leads me to think that something odd occured with the L2 cache alone. I am in general agreement with the DonutKing in that "anything is possible" with PC Chips products.
For the harddrive's linear speed read, the graph is correct, but the printed average value is quite high at 183,661 KB/s. While this may be possible on an Ultra320 SCSI harddrive (the harddrive that was used), the employed SCSI Ultra2 controller is only capable of a maximum 80 MB/s.
The memory bandwidth is consistent with other 486-class cpus's tested (100 Mbytes/sec for 33 Mhz FSB and 121 Mbytes/second for 40 Mhz FSB).
The chipset is UMC 881/886, found in many late era, PCI-based socket 3 motherboards.
Has anyone else seen such elevated speed ratings in SpeedSys?