Ultra SCSI Fast20 OverClock

BlueSCSI can support the Ultra/Ultra Wide SCSI Fast20 SCSI timings.

With these settings
* BlueSCSI v2/Ultra can negotiate up to 20MB/sec
* BlueSCSI Ultra Wide to negotiate up to 40MB/sec

Prerequisites

You will need an SCSI card that supports Ultra SCSI (Fast20) and the appropriate BlueSCSI or adapter.

Enable

Add this to your bluescsi.ini file to enable FAST20 timings:

[SCSI]
SpeedGrade="TurboMax"
MaxSyncSpeed=20 ; MegaTransfers not MB/sec

Working

Ultra Wide/SCA

• Please report!

v2/Ultra

• Adaptec 2940W PCI (Mac, Pico1)
  • 16MB/sec Read, 10MB/sec Write
• Adaptec 2940W PCI (Win98 SE, Pico2)
  • 14.4MB/sec Read, 8.9MB/sec Write
• Adaptec 2940UW PCI (Win7 32, Pico1)
  • 9.5MB/sec Read, 5.35MB/sec Write
  • Note: you must use the 68-pin connector to get 20MB/sec negotiation
• Adaptec 2940UW PCI (Win98 SE, Pico1)
  • 16.3MB/sec Read, 7.2MB/sec Write
  • Note: you must use the 68-pin connector to get 20MB/sec negotiation
• Symbios 22801 PCI (WinXP, Pico2)
  • 12MB/sec Read, 4MB/sec Write
• Symbios 22801 PCI (Solaris 8 Sparc, Pico2)
  • 14MB/sec Read, 5.7MB/s Write
• SGI O2 via 50p CDROM connector (IRIX 6.5.30, Pico2)
  • 16MB/sec Read, 8MB/sec Write

Unstable

• Adaptec 2940U2B PCI (WinXP, Pico2)

Not working