| ??? 08/01/11 13:31 Read: times |
#183132 - HDD +12V Responding to: ???'s previous message |
To know the voltage for a HDD it would be advisable to look at the specs for the drive itself....if the vendor even specifies the voltages. I just looked at the detailed data sheets for a Seagate 3.5" HDD and a Western Digital 3.5" drive. Both data sheets made no direct mention at all as to what voltage rails were required for the drive then yet what the tolerances would be for proper operation.
One could extrapolate the drive voltage range from the specs for the PC power supply since most drives are powered from a cable that comes directly from the PSU itself. Once again of course one would have to investigate the spec for the PSU from the manufacturer. There may be general industry standards on voltage rail tolerance from PSUs but some vendors may be different. I have noticed however that most PSUs generate voltages a bit higher than the nominal levels to compensate for loss in the cabling. Michael Karas |
| Topic | Author | Date |
| HDD surge protector, what would it take? | 01/01/70 00:00 | |
| My thoughts... | 01/01/70 00:00 | |
| Backups | 01/01/70 00:00 | |
| Other Discussion | 01/01/70 00:00 | |
| A good PSU is a good investment - backup policy even better | 01/01/70 00:00 | |
| How good is a good PSU? | 01/01/70 00:00 | |
| Similar experience | 01/01/70 00:00 | |
| maybe you need some power zeners | 01/01/70 00:00 | |
| Surge protectors, zener + crowbar | 01/01/70 00:00 | |
| a zener is too slow | 01/01/70 00:00 | |
| maybe not | 01/01/70 00:00 | |
How slow is slow? | 01/01/70 00:00 | |
| HDD +12V | 01/01/70 00:00 | |
| PSU allowed to do +/- 10% on 12V rail at max load | 01/01/70 00:00 | |
| That's useful | 01/01/70 00:00 |