OK, I've been having this problem for a while now, and the more I get into it, the more I think it's crazy. Now, I'm not sure this is a Windows 10 problem, it could also be the motherboard, I'm quite sure though that it's not a HDD problem. Anyway, here I go.
I'm running Windows 10 on an SSD, this drive runs fine.
I have another new HD in my computer, a 1TB Seagate Desktop HDD ST1000DM003. Now, after I wake the PC from sleep the read / write speed of the HD roughly halves. Everytime the PC goes slower and slower until you can't even watch a 1080 mp4 without massive lagging.
I have used CrystalDiskMark 5 for performance testing:
partition read (MB/s) write (MB/s) c: [SSD] 543 510 c: (after sleep 1) 540 506 c: (after sleep 2) 539 508 d: [HDD 1] 122 114 d: (after sleep 1) 73 65 d: (after sleep 2) 32 29 e: [HDD 1] 95 95 e: (after sleep 1) 68 58 e: (after sleep 2) 32 29
Now, I guess this looks like it could also be a HDD problem (even though the HDD's new). But look what happens as soon as I connect another (dying) HDD:
partition read write c: [SSD] 524 471 c: (after sleep 1) 538 507 c: (after sleep 2) 542 506 d: [HDD 1] 145 133 d: (after sleep 1) 122 112 d: (after sleep 2) 117 113 e: [HDD 1] 112 119 e: (after sleep 1) 90 94 e: (after sleep 2) 98 90 f: [HDD 2] 62 68 f: (after sleep 1) x x f: (after sleep 2) x x g: [HDD 2] 53 83 g: (after sleep 1) x x g: (after sleep 2) x x
x = Benchmark didn't even start.
Now, obviously the problem doesn't appear as soon as another drive was connected. I'm absolutely clueless.
Things I have tried (might have tried more, it's been so long I don't remember anymore):
- changed SATA cable
- changed connector on motherboard
- updates BIOS
- looked for HDD firmware (nothing found)
- tried disabling fast startup
- tried disabling superfetc
- tried disabling Windows 10 notifications.
