So a couple weeks ago I posted about my new rig and one of the SATA ports not working. I'll get to the issue with the SATA port in a second, but here's the parts:
CPU: Intel Core i7-6700K 4.0GHz Quad-Core Processor
CPU Cooler: Noctua NH-D15
Motherboard: Gigabyte GA-Z170N-Gaming 5 ITX
Memory: G.Skill TridentZ 32GB (2 x 16GB) DDR4-3000 Memory
SSD: Samsung 950 M.2 PCIe x4 256gb
HDD1: WD Black 6tb
HDD2: WD Red 6tb
HDD3: WD Red 6tb
HDD4: WD Red 6tb
HDD5: WD Red 6tb
ODD: Pioneer BDR-2209 Bluray Writer
Video Card: ASUS GTX 970 DCMOC (the short one)
Case: Bitfenix Prodigy Black
Power Supply: Silverstone 650w 120mm Modular
OS: Windows 10
Total Cost: Over $4,000 CDN
Yes, that is 30tb of HDDs. They were the reason why I chose that motherboard in particular. As with all my builds (can't believe after 15 years I've never had ONE bad part), I had zero real issues - I mentioned the Samsung 950 slow boot times here and saw a couple people echo it, but I can deal with it for - and got the system up and running.
Well, up and running except for one of the HDDs. No matter which drive or cable I plugged into the SATA3_5 port, I just couldn't get it to be recognized. I figured I just had a faulty port, probably from physical damage. I wrote to Gigabyte and explained the situation, figuring I'd not get much other than the RMA process started. Lo and behold, I was actually given a helpful and informed response.
Turns out, because of the M.2 SSD the motherboard is "reserving" the SATA port/lane to ensure transfer speeds (?) for PCIe drives. Their customer service rep suggested I check the M.2 section of the manual and sure enough, it reads:
Here's my question:
Since I am actually
not using those 4 WD Reds in a RAID configuration, can I go back to AHCI without any serious issues/performance loss? Or data loss? If I recall correctly (and it's entirely possible I don't), you had to do a full reinstall of Win 7 if you wanted to switch between the AHCI and RAID driver. A full reformat is out of the question for me at the moment as I'm not in a position to be able to redownload all the OS updates. I did some quick google skimming and it looks like there's an article on Overclock.net forums about this exact thing using a regedit, but looks like there's only instructions for Win 7 and 8.
Has anyone had to do this before? I'm just looking for some advice before I go down this road... like if you tried this and because you did it your PC grew to 100 times it's size which created a sinkhole and then plummeted to the depths of hell, that's something I would like to know before I take this on.