This may match higher for formatting SCSI drives on the A2090. If in case you have drives on both internal and external chains, you have to desolder the termination on the A2090 controller card. https://Xn--L3Ca4B8Epb5B.com/category/%E0%B8%84%E0%B8%A5%E0%B8%B4%E0%B8%9B%E0%B8%AB%E0%B8%A5%E0%B8%B8%E0%B8%94%E0%B8%A1%E0%B8%B2%E0%B9%83%E0%B8%AB%E0%B8%A1%E0%B9%88/