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Note ---- This ticket is helpful for system assembly service providers or integrators if they use system comfiguration with RAID solution. Description ----------- We've been meeting many technical requests mentioning about system stability issues. But many of them are relative to improper system assembly, but not really main board or chassis quality issue. For any system configuration with RAID solution, it is very much usual to see system stability issues. The visible reasons are listed below: 1. HDDs those are from different batches, firmware revision, CHS features, models or from different brands. For IDE or SCSI RAID adapter or external controller, it is recommended to use the same brand, same batch and firmware version of HDDs. Real symptoms we've seen for this... 2. SCSI Terminations not in good condition! Real symptoms we've seen for this... 3. RAM compatibility on SCSI RAID adapter or external controller! 4. RAID adapter compatibility * Compatibility for PCI interface - * Compatibility between different specifications of transfer rate - For detail, please refer to attached file.