Recently moved my disks in System 1 around to get my OS disk in a cooler spot (and, as you may have read here, to see whether I could get the OS back on Disk 0). That all worked, and the OS disk idle temp came down from 49-51° C to 42-45° C. But I've been surprised by the temps of my new WD Black. The WD is the one on the right (CrystalDiskInfo readings, confirmed by HWiNFO and CPU-Z). The difference between 30° and 49° C is HUGE. The leftmost and center readings are 970 EVO plus disks, 250 GB and 500 GB, respectively. All three have heat sinks attached with thermal pads.
I know that all my temps are well within the safe operating range, so I'm not at all concerned about the higher ones, but I was wondering whether WD Blacks have a reputation for runnng cooler than Samsung EVO Plusses. I've seen several suggestions to that effect on the Net, but those are not as reliable as a report from one of you on this forum would be.
I'm thinking that when the budget allows, I might replace the 2-3-year old Samsungs with WDs.

I know that all my temps are well within the safe operating range, so I'm not at all concerned about the higher ones, but I was wondering whether WD Blacks have a reputation for runnng cooler than Samsung EVO Plusses. I've seen several suggestions to that effect on the Net, but those are not as reliable as a report from one of you on this forum would be.
I'm thinking that when the budget allows, I might replace the 2-3-year old Samsungs with WDs.

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My Computers
System One System Two
-
- OS
- 11 Pro 24H2 26100.2454
- Computer type
- PC/Desktop
- Manufacturer/Model
- Lenovo ThinkCentre M920S SFF
- CPU
- i7-9700 @ 3.00GHz
- Motherboard
- Lenovo 3132
- Memory
- 32GBDDR4 @ 2666MHz
- Graphics Card(s)
- Intel HD 630 Graphics onboard
- Sound Card
- Realtek HD Audio
- Monitor(s) Displays
- LG E2442
- Screen Resolution
- 1920x1080
- Hard Drives
- 1 x Samsung 970 EVO PLUS 500GB NVMe SSD, 1 x WD_BLACK SN770
250GB NVMe SSD (OS and programs), 1 x WD_BLACK SN770
500GB NVMe SSD (Data)
- Case
- Lenovo SFF
- Keyboard
- Cherry Stream TKL JK-8600US-2 Wired
- Mouse
- LogiTech M510 wireless
- Internet Speed
- Fast (for fixed wireless!)
- Browser
- Chrome, sometimes Firefox
- Antivirus
- Malwarebytes Premium & Defender (working together beautifully!)
-
- Operating System
- 11 Pro 24H2 26100.2454
- Computer type
- PC/Desktop
- Manufacturer/Model
- Lenovo ThinkCentre M920S SFF
- CPU
- i5-8400 @ 2.80GHz
- Motherboard
- Lenovo 3132
- Memory
- 32GB DDR4 @ 2600MHz
- Graphics card(s)
- Intel HD 630 Graphics onboard
- Sound Card
- Realtek High Definition Audio onboard
- Monitor(s) Displays
- LG FULL HD (1920x1080@59Hz)
- Screen Resolution
- 1920 x 1080
- Hard Drives
- 1 x Samsung 970 EVO PLUS NVMe; 1 x Samsung 980 NVMe SSD
- Case
- Lenovo Think Centre SFF
- Mouse
- LogiTech M510 wireless
- Keyboard
- Cherry Stream TKL JK-8600US-2 Wired
- Internet Speed
- Fast (for fixed wireless!)
- Browser
- Chrome
- Antivirus
- Malwarebytes Premium and MS Defender, beautiful together