I just got this Intel NUC Kit NUC8i3BEK with these components
I installed Windows 10. It took around an hour to install (in an older NUC5i3, using same SSD, it installed in around 15 minutes, from same USB key).
Once inside Windows, it's barely usable, opening windows start menu takes around 5 seconds, opening file explorer takes like 8 seconds.
I see no much CPU activity, or process using CPU (less than 5%) or memory
Already installed all windows updates, all intel drivers are up to date, BIOS is up to date.
I ran some benchmarks using geekbench, and I get really low scores.
I ran geekbench on an ubuntu live usb, just to discard a bad windows installation, and I got slightly better scores.
These are my geekbench results
windows: https://browser.geekbench.com/v5/cpu/1760956 105 single-core | 198 multi-core
linux: https://browser.geekbench.com/v5/cpu/1761446 118 single-core | 271 multi-core
I'm comparing against same NUC models
~950 single-core | ~2200 multi-core
Any suggestions of what could be wrong
Troubleshooting with suggestions in here, I noticed that the CPU clock is "stuck" at 399 MHz even when running performance tests like GeekBench.
Did some googling, and found some fixes that worked for other people, I tried them with no luck for me. SO here's what I tried so far:
( Added screen captures as a comment below )
Thanks for the reply LWAKSMAN
I check the SSD with Crucial Storage Executive Tool, firmware up to date P3CR013 and drive is in good health.
The BIOS is in the latest available version 0078 from 3/9/2020
What else could I try?
Thanks for the reply n.scott.pearson
How would you identify if the RAM is the issue?
So far I ran memtest86 without errors detected
And I don't have other DDR4 available to test.
Frankly, the only way is to try different memory. MemTest86 and MemTest86+ are not infallible. I have memory (albeit DDR2) that passed all tests (including 48 hour burnin) yet failed in Windows operation.
I know Scott's opinion about Kingston RAM. However I'm using Kingston memory (both types: the Value RAM and the HyperX) and never get any problem. To verify if there is no RAM problem, you may power ON your NUC with only one SO DIMM module at time - first in the bottom slot and then in the upper. Use the CPU-Z (or similar) application to see the frequency that your RAM works. Click on the "memory" tab to see the actual speed and timings your ram is running.
Click on the "SPD" tab to see the memory rated speed and JEDEC and EPP timings.
Please set your Bios settings to default: press F9 followed by "Y" and then F10 confirmed by "Y"
So I checked with CPU-Z, and I don't see anything wrong.
I put here the screen captures in case I missed something.
I already tried restoring to BIOS defaults.
Something I just noticed is the CPU clock is "stuck" at 399 Hz even when running geekbench, or CPU-Z stress CPU.
I'll update the top ticket and title with some screen captures
"So I checked with CPU-Z, and I don't see anything wrong." Yes, there is something wrong, the rated Frequency for your RAM has rated frequency 1200 MHz, but is running at 665.1 MHZ only. Your CPU has Based Speed 3.00 GHz and actually runs 10 times slower. So, at least now we know why your NUC is so slow. The question remains why the CPU is not running in as expected? If as you say, the Bios is set to default settings and you have saved those settings (i.e. pressed on F10 confirmed by "Y"), the problem may be hardware failure or unsuccessful Bios update.
Start with Bios update, using BIOS Recovery from Power Button Menu method:
In order to test your CPU, download and install Intel Processor Diagnostics Tool (64 bit). Run the test.
So I did a BIOS Recovery by the Power Menu Button, and the CPU clock still fixed at 399 MHz when running some performance tests.
As I don't know the difference between BIOS Recovery by power button and Jumper Security, I did a second BIOS Recovery by the Security Jumper. And the same issue, CPU clock at 399 MHz, following the instructions from here:
I set the BIOS to its default settings (F9), confirmed (y), Save and Exist (F10) and confirm (Y) after both BIOS Recoveries finished.
I confirmed the checksum of the BE0078.bio file matched the one from the intel download page.
I ran the Intel Processor Diagnostics Tool. In parallel I was monitoring with CPU-ID HW Monitor during the IPDT tests and the CPU clock stayed constant at 399 MHz.
All tests passed including the CPU Frequency Check, which is really strange.
(Adding the CPU-Z cpu tab screen shot in case something from here doesn't make sense, besides the clock frequency)
It is clear that the CPU is working in low speed and the multiplier is low, however there is no way how to control it in NUC8i3BE (the Bios was recovered and set to default settings, both cores working)? This NUC has hardware failure.
I see two possibilities, (1) BIOS has bug and F9 is not resetting multiplier, or (2) there is a failure in the hardware. Checking #1 is simple; do F9 reset and then reenter BIOS setup and check the processor configuration. I rather doubt #1 is the case, however.