You sure use a lot of harddrives 😁
I typically run just 1 harddrive in any of my rigs (except for some of my primary rigs).
Looking at the back of your computer cases (the ATX ones) I couldn't help but notice the bad ventilation holes in your ATX cases (really small holes with lots of metal in between).
What I did was ask a friend to cut out the meshes completely, then after adding the fan I added fan grills I salvaged from dead PSU's 😀 (you can view some pics of how this ended up looking in my retro rig thread (link is in my signature)), it cools a lot better that way 😀
Well, I think I like the components better inside the cases, rather than sitting on the shelves. 🤣
Actually my two active retro rigs have only three disks each. One for MS-DOS 6.22/Windows 3.11 and Windows 95, one for Windows 98 and the last one (mostly SCSI) is for storing uninstalled app and games, plus the ghost images of the other partitions. Actually 3 disks per rig is probably my established standard. 🤣
My XP box, which is also kind of a backup rig, has 8, yes, but first 3 are for Windows XP, Fedora, and Mint respectively, one for storage, and the last four were for video capture as a RAID10 array (during the times my handycam had no HDD but 8mm cassettes instead). The other retro one with the 8 disks is an anomaly, by design. It had 17 different OSs on it sometime in the past. 😈
I'm sure better ventilation is a good thing and I'm sure will most probably extend the life of all the components concerned, but to say the truth, it is not that important, according to my experience. My first CPU was an Intel 386SX-16, and I clearly remember blistering my fingers after an occasional touch to its surface while running. It still runs after about 23 years, and believe me, I did some serious crunching with it during my computational fluid dynamics and aircraft engine design courses, in years long past.. 😈 I never used anything but the stock coolers for any of my CPUs and yet haven't lost any of them to heat.
Besides, I really don't like the idea of introducing metal chips into my cases, I've seen more than once what they can cause.
Your mods look very nice and cool, in anyway.. 😀
GA-6VTXE PIII 1.4+512MB
Geforce4 Ti 4200 64MB
Diamond Monster 3D 12MB SLI
SB AWE64 PNP+32MB
120GB IDE Samsung/80GB IDE Seagate/146GB SCSI Compaq/73GB SCSI IBM
MSDOS 6.22+Win 3.11/95 OSR2.1/98SE/ME/2000