I had the opportunity to acquire a second hand ASRock Z170 EXTREME 7+ mainboard at a good price and plan to assemble a tower to perform data recovery jobs.
It is a high-end board, whith 10 SATA III ports, 3 SATA Express, 4 PCIe-3.0 x16 slots, USB 3.1 A+C ports, M.2, a.s.o. Specifications are here: http://www.asrock.com/mb/Intel/Z170%20Extreme7+/?cat=Specifications
As working with hard drives that are possibly hardware defective, the quality of the power supply unit is important.
I plan to use:
- 2 or 3 dual drives hot swap bays, each accepting one 3.5'' and one 2.5'' hard drive, but having a unique SATA power socket
- 1 CD/DVD bay
- 1 floppy bay
- 1 to 3 SATA hard drives with miscellaneous operating systems, directly connected to the motherboard
So, the SATA power cables for permanently connected devices should be 8, although most of the time 3 to 5 should be in use. For the most busy days, I would like however the PSU to support more than 5 devices.
The remaining SATA ports will be used to connect other hard drives, when all SATA bays are full or for diagnostic purposes.
Probably 2 or 3 PCIe expansion cards will be in use (things like the PC-3000, MRT, ...) and possibly a graphic card.
I've not chosen the processor yet, but it will be an Intel i5 or i7 of 6th or 7th generation. The RAM was not chosen yet, but will be dual channel DDR4, probably 8 GB or 16 GB, as huge quantity of RAM is not necessary in this case.
Gaming performance is not required and graphic needs should be moderate, mainly for post-processing of recovered pictures through thumbnails view. So, what is required is a solid "technician desktop" with many hardware extensions, but moderate processing needs.
The stability of the whole is essential.
I would like the cables to be long enough to reach the SATA bays easily.
So, how many Watts should the PSU support?
Which brands / families / models would you recommend, taking into acount "old" series, as I prefer a second hand high-end model to a medium range new model?
To the precence of which kind of power connectors (other than SATA ones) should I pay attention as well?
Alghough I'm used to upgrading hardware, this is my first attempt for a self-made tower. Thank you for your help.