68kMLA Classic Interface

This is a version of the 68kMLA forums for viewing on your favorite old mac. Visitors on modern platforms may prefer the main site.

Click here to select a new forum.
Atto SiliconExpress IV and BlueSCSI Ultrawide
Posted by: MRB2025 on 2026-05-23 16:58:23
Hi - My Quadra 840AV currently has a BlueSCSI V2 as it's boot drive, and I am thinking about adding a Atto SiliconExpress IV to interface to the BlueSCSI Ultra Wide. Any thoughts or advice?
Posted by: eharmon on 2026-05-23 20:42:07
Hi - My Quadra 840AV currently has a BlueSCSI V2 as it's boot drive, and I am thinking about adding a Atto SiliconExpress IV to interface to the BlueSCSI Ultra Wide. Any thoughts or advice?
Anything you’re looking to know? Should work fine and be faster. But the wide only helps a tiny bit over any fast narrow (afaik benchmarks should be similar): https://68kmla.org/bb/threads/maximum-siliconexpress-iv-throughput.51369/

But if the AV really is faster on a wide, I’d love to know.
Posted by: MRB2025 on 2026-05-23 22:38:42
That thread indicates that result may be an issue with the 650 vs AV nubus controller. if I get it working I will let you know the results are.
Posted by: Joopmac on 2026-05-23 23:46:43
Let me know! I am curious, want to try a Ultra on SEiV in 950 of 700
1