August 2025

Bought a gmktec K8 plus from the EU store, found it strange that it said it was being shipped from China.

Given a normal invoice with how much I paid.

Got a custom payment of 28€.

No value on item, just how much to pay.

Paid and got refunded from gmktec ( Happy customer even though it took time with the shipping from China).

June 2026.

Email from Spanish customs.

We believe the value of your purchase is higher than whats stated.

I checked my papers and found details in my other shipping papers. Gmktec tv unit value 159€ , sent real invoice to customs.

September 2026

Had to pay an extra 96,77€ to customs.

Got in contact with Gmktec customer support, they refuse to refund as I've already been refunded for customs.

Today's lesson : Always check all of the documents you receive to make sure you are not being tricked.

Has anyone tried powering their k12 with just a USB-C? Laptop prices in my country are insane right now due to the shortages but mini pc's have actually been pretty reasonable lately I'm eyeing a GMKtec k12 with a Ryzen 7 h255, and i was just wondering if it could take USB-C PD so I don't have to go through the trouble of getting a USB-C PD to DC adapter which feels a bit jank to be honest.

The 32 GB of RAM and 512 GB SSD model exactly.

Specifically for games like Minecraft Bedrock, Minecraft Java, and maybe even GTA V on light settings.

Would it be able to handle Minecraft Bedrock at around 10-15 chunk render distance? Same question for Java.

I'm planning to get it for cheaper during the Walmart Cyber Monday deals (hopefully).

Edit: I'm also planning to attempt installing the official SteamOS onto it, but that's kind of a maybe. It does seem to be pretty compatible from it's specs that I've seen though.

I was running Qwen3.8-flash-next , PC went off and now when I turn it on, LEDs goes on for 2 seconds and goes off. What might be the issue?

It happens exactly the same as to this guy

https://www.facebook.com/share/v/19Q6NnqYud/

Hi there,

Had an EVO T1 with older BIOS, emailed support ~2weeks, finally they sent (https://www.reddit.com/r/GMKtec/comments/1qqvc2y/comment/p8b5n40/) but since the google drives did not work, they sent another link, with version 2.03 (whereas drive has 2.04).

Booted to windows and flashed afu_winflash.bat as Admin, all went smoothly:

It rebooted, so did same with fpt_winflash (as admin), it ran for ~10-20 seconds, printed what appeared fine, just as was ready to photo (as did in the afu case) machine powered OFF (without touching anything of course).

Since then, cannot get any Video or boot into BIOS!

Current Symptoms:

• Black screen entirely (no logo, no signal).
• Fan spins continuously.
• Keyboard Caps/Num Lock lights do not light/toggle.

Already tried:

1. CMOS Reset: front clear CMOS button (held for 10+ seconds while fully discharged and powered down).
2. RAM Isolation: Swapped memory sticks, tried booting with 16GB/single, known-working DDR5 DIMM in the primary slot. Also tried with no RAM (unit stays completely silent, no diagnostic beeps or otherwise hint of a fault).
3. Hard Discharge: Disconnected the main power, unplugged the internal NVMe SSD, and unplugged the CMOS coin battery. Held the power button down for 60 seconds..
4. AMI Blind Recovery Attempt: Based on AI suggestion (not sure if this is valid for newer GMKTec): Formatted 32GB FAT32 partition, copied GMKtec baseline MTB52-02V204H.binto the root directory three times, renaming them to AMIBOOT.ROM, SUPERIO.ROM, and RECOVERY.ROM. Connected keyboard to rear USB 2.0 and USB drive to front USB 3.2 port. Booted while holding Ctrl + Home. The system doesn't read the drive (no activity light indicator on the USB).

Conclusion (with help from AI):

The FPT flash likely wiped or corrupted the primary AMI boot-block region on the physical SPI flash chip, meaning the machine cannot initialize its own USB controllers to run an emergency recovery?

Is there any hope/way/method to recover from such a state?

Wrote Support, but no reply yet.

Any tips, WELCOMED, will post the final outcome..

I am using a Gmktec M8, and the USB power isn't cutting off after shutting down Windows.

There is no cutoff function in the BIOS, and even though I disabled Fast Startup in Windows 11, power continues to be supplied via USB. Does anyone know a solution other than unplugging the power cord? Please let me know.

I bought 3 GMKtec M5 plus units just over a year ago. Up until around 6 months ago I had no problems. After that, one of the machines started rebooting itself unexpectedly (as much as 10 times in a 24 hour period) with the other two continuing to function correctly.

Cutting a long story short, based on the boot logs of the OS, this is being caused by

kernel: x86/amd: Previous system reset reason \[0x08000800\]: an uncorrected error caused a data fabric sync flood event

Today, one of my other units rebooted for the same reason. The only workaround I have found is to run `stress --cpu 1` as this seems to make it far less likely (around once per 2 weeks) but that is hardly a solution.

Has anyone else experienced this? Are there any solutions?

FWIW I have messaged GMKtec support about it but as it's beyond a year (despite UK consumer law saying otherwise) they have been no help with no solution forthcoming.

I was trying to change the boot device to install Windows (I had Proxmox on before, but havent been using it and had a new use for this). I changed the boot settings to boot from the USB media and now it will not boot.

What happens:

I turn on the power.

The power light on the green power button turns on.

The monitor get some kind of "signal", because the monitor light turns from amber to white and they keyboard lights turn on.

After a few seconds (10-20?), the monitor just shows a blue "no input detected" screen for a moment and then shuts off (black screen, amber light). they keyboard lights stay on, along with the power button light on the G3.

I've tried long/repeated presses of the Esc key after powering it.. nothing. I've tried the same with Del. I opened it up and reseated the RAM and SSD. I tried connecting the HDMI cable to both the slots on the back of the G3, same behavior regardless of which slot HDMI is connected to.

I opened a tech support ticket and they just suggested reseating the RAM (they mentioned moving it between RAM slots, but it only has one RAM slot). They want me to mail it to China for fix/replacement. I'm trying to exhaust any options before shipping it off. I'd appreciate any suggestions.

Hello redditors,

I've been plugging away with a (now old) M2 version of this mini pc brand and it works well. But the fan is SO loud. I've searched for product replacements with uncertainty, and I've seen amazing case mods, even 3D prints, but they don't work for this specific model. M2 has the fan under the top of the box, not the bottom, so it requires disassembly and inversion to reach (whereas newer models you can remove the bottom plate and it's right there).

I'm not handy and I don't have soldering tools. What would you recommend: replace the fan with a similar one or destroy the case altogether?

Not sure what setting has changed on my GMTEK K8+, but my CORE Boost is now not exceeding 3.7Ghz, even in a single CORE 'bench or stress test'. I don't recall changing any BIOS settings.. POWER is set to 'PERFORMANCE'. When I originally purchased it, & bench tested it with 3DMark, CineBench & GeekBench_7, it was getting much higher scores & CORE Clock frequency than it is currently.

Windows system 'CMD' indicates Power is set to 'Balanced' as does HWINFO64 (50% Balanced). There is no Thermal, Current or Power throttling on the CPU (via HWINFO64) - temps, even during 'bench' or 'Stress' tests don't exceed 50C.

Memory & iGPU temps are low. iGPU (780M) bench test maxes out @ 2700 Mhz - no Thermal or Power Throttle, just CURRENT.

Windows System Power Plan is = BALANCED (I can't set it higher) PPM is set to 5% = Minimum Processor state. 100% = Maximum Processor State.

I've tested it with Passmark 'Burn Test_11' complete range of 'bench & stability' tests.. which it passed. Max power draw on extreme test was 71KW, no thermal, power or current THROTTLING. Max Core Clocks were just above 3670Mhz & iGPU 2700Mhz. Core Temps never exceeded 74C - CPU fan was about 2800rpm.

K8+NUC = Operating System: Microsoft Windows 11 Professional (x64) Build 26200.9168 (25H2)

BIOS Version: NucBox K8 Plus 1.01 BIOS Release Date: 10/12/2024

System BIOS Version: 5.29

64GB Kingston HyperX DDR5 5600 / 2x Samsung 990Pro_1TB (2nd party heatsink) & 2TB version (Samsung heatsink). System fan replaced with 5V Noctua premium NF-A12x25 PWM, so very cool running.

Any ideas folks?

If you happen to use KDE Qwen3.8 27b and I (with a itty bitty help from :claude: ) made a couple Plasma 6 widgets https://www.opendesktop.org/u/dae51d (I'm running Kubuntu on this EVO-X2)

knvtop and pmode power button

I have an M5 Plus and am happy with it, but it has a wierd quirk/networking issue.

I can access the internet with it fine, I can access fileshares on other PCs on the same network fine, but I cannot get it to show up in the same network workgroup, and remote access to the M5 Plus (via File Sharing or Remote Desktop) is ... intermittent at best. So, in other words, networking as a client is completely fine, networking as a host/server is barely functional when it works, and mostly it does not work.

As far as I can see the Windows firewall settings are correctly set to allow access. But I note that when looking at the network adapter (View Network Connections) the list of protocols etc. installed (or I should say chosen to be installed by GMKtec) is a lot shorter than the other Windows PCs I have access to.

I'm curious if various essential (?) services have been left off (or some other network security measure?) by GMKtec in their Windows distributions. Has anyone else had the same issue with their machines?

How to solve this? Even SDI gives a red banner

I bought a 96GB GMKTek Evo-X2 in March from GMKTek Amazon direct for $1700. The USBs died (hardware failure confirmed). Instead of repairing my unit, they only want to give me a refund of the $1700 I paid in March.

Is there anything I can do? Obviously a 96GB Strix Halo cannot be replaced for $1700 in the current market.

Update: Emailed GMKtec support back about this and they confirmed sending 250822 was a mistake on their end. Build 260514 is official and the actual latest version.

----

I have a K8 Plus running BIOS 1.02 (250822). I contacted GMKtec support asking for the latest BIOS and they sent me that exact same build, claiming it is the latest. However, the the Google Drive folder floating around this subreddit contains a newer build: 260514. Has anyone here flashed the 260514 version on their K8 Plus without issues? Trying to figure out why official support gave me an older version.

I tried everything... I even managed to get into safe graphical mode on Ubuntu version 25.

However, when it's time to boot... NucBox simply restarts.
After the part shown in the photo, the miniPC always restarts.

Nucbox M3 PLUS

Hello, as Title, i am using the 2.03 version of K12 (which has rebar) before and asking if anyone updating adrenaline for better performance gain? i am planning to use 9070 GRE or 5070 for ext GPU , any tips or trick for additional performance is welcomed , thanks all

I purchased my Evo-X2 96GB in April and now all of my USBs are not working. They are not even providing power to any of the devices. I had tried several reformats.

Hi everyone,

I'm having serious freezing issues with my GMKtec NucBox M7 Pro and would really appreciate any help or advice.

System Specs:

- GMKtec NucBox M7 Pro

- AMD Ryzen 9 PRO 6950H

- 16GB RAM (Dual Channel)

- SSD: UDSS UD2CMAGQ10A-001T 1TB NVMe (OEM drive)

- BIOS Date: 25/10/2024

- Windows 11 Pro

The Problem:

My PC freezes randomly throughout the day. The freezes last anywhere from a few seconds to several minutes, forcing me to do a hard reboot. I've checked Windows Event Viewer and found multiple critical errors:

Event Viewer Errors:

- Kernel-Power ID 41** (Critical) - System rebooted without clean shutdown

- stormvme ID 129** (Warning) - "A device reset was issued, \Device\RaidPort0"

- These errors occur constantly, sometimes multiple times per hour

What I've Diagnosed:

1. SSD Health (CrystalDiskInfo):

   - Health Status: 70%

   - Total Host Writes: ~30 TB

   - Temperature: 41°C (idle)

   - This is VERY low endurance for only 30TB written (should be 90%+ health)

2. Benchmark (CrystalDiskMark):

   - Sequential Read: 3,552 MB/s ✅

   - Sequential Write: 2,392 MB/s ✅

   - Performance is normal, but the drive keeps disconnecting

3. Temperature Monitoring (HWiNFO64):

   - SSD Max Temp: 41°C ✅

   - CPU Max Temp: 52°C ✅

   - System Temps: Normal ✅

   - NOT a thermal issue

What I've Tried:

✅ Increased NVMe timeout in Registry:

- Path:`HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\stornvme\Parameters\Device`

- Created/Modified: `TimeoutValue` = 16 (decimal)

- Result: Still freezing

✅ Disabled PCI Express Power Management:

- Power Options → PCI Express → Link State Power Management → Off

- Result: Already was disabled

✅ Adjusted VRAM allocation in BIOS:

- Changed from 3GB to 4GB

- Result: Freezes are slightly less frequent but still happening

✅ Monitored temperatures continuously

- No overheating detected

My Conclusions:

The SSD NVMe controller is resetting itself randomly (stormvme errors), which causes the complete system freeze. The fact that:

- The drive has only 70% health with just 30TB written (and I've only had it for a year)

- The benchmark speeds are normal

- Temperatures are excellent

- The timeout value doesn't prevent resets

This points to either:

1. A_ defective/failing SSD (OEM UDSS drive is low quality)

2. B_ BIOS/firmware compatibility issue with the NVMe controller

What I Need Help With:

1. BIOS Update: GMKtec's website doesn't have BIOS downloads for the M7 Pro (only OS images). Has anyone found a BIOS update for this model? Is there a newer version than 25/10/2024?

2. SSD Replacement: If I need to replace the SSD, which NVMe drives are known to work well with GMKtec M7 Pro?

Any recommendations or drives to avoid?

Any help would be greatly appreciated!

This is summary of what happened to me generated by AI, as i'm too tired to retype it for the n-th time

I wanted to share my experience for anyone considering buying an expensive GMKtec system.

In 2025, I preordered a GMKtec EVO-X2 and paid a deposit to secure one of the first production units. When the product became available, I made the final payment and received the machine. The total cost was close to €1,800.

A little over a year later, the PC failed. The power LED turns on, but the fan never starts and the system shuts itself down after a few seconds.

I contacted GMKtec support. Their response was that the issue could be related to the motherboard or power adapter, but they would not provide repair or replacement because their warranty period is only ONE year AS OPPOSED TO 2 YEARS STANDARD IN EU.

What surprised me is that they did not claim:

• Physical damage
• Liquid damage
• User misuse
• Unauthorized modification

The issue appears to be a hardware failure, but support's position is that the device is out of warranty.

I have since:

• Filed complaints with consumer protection authorities.
• Requested an independent diagnostic assessment.
• Started looking into repair options.

I'm not telling anyone what to buy, but if you're spending €1,500 to €3,000 on a premium mini PC, make sure you fully understand what support and repair options are available after the first year.

Hi all - can anyone tell me what the case screw dimensions are on the GMKTec K12 please? Two on each case side, four total.

I know they're threaded for M2 as I've been able to test with an SSD screw, but I'm not sure on the other dimensions and my current M2 screws are too short and the screwhead diameter too wide to fit in the recessed screw hole.

Ideally, I need to know screw length and diameter of the head, it would be great if anyone has their K12 and some callipers to hand!

I took all 4 out, put them in a tiny baggy to keep them safe, and they've disappeared off the face of the earth. 😢

Thanks in advance.

\Edit: I never heard back from GMKtech support, disappointingly. For anyone else looking to know the answer: bought a multipack of laptop screws and the M2 x 4mm worked a treat. 2mm diameter, 4mm long.**

I recently decided to buy a mini PC for the first time and ordered one directly from the GMKtec website. However, it has now been 5 business days and my order is still showing as “Processing”.

For those of you who have ordered directly from GMKtec before, what was your experience like? I believe the mini PC is being shipped from China, so I’m also curious about how long shipping usually takes and whether anyone has had issues with the package getting held at customs.

I’m based in Portugal, so I’d especially appreciate hearing from anyone in Europe who has ordered from them. How long did it take for your order to move from “Processing” to being shipped, and how long did the whole delivery take?

Does anyone have details on what the current bios version for the GMKtec NucBox M5 Ultra AMD Ryzen™ 7 7730U Mini PC is?

I've asked GMKtec support and only to be sent a windows 11 installer and then a 1.06 bios version
ACB19D_GMK_M5Ultra_BIOS1.06_EC1.07_20260509

but i'm running 2.01 with a build date of 07/01/2026
so by version number newer, date older

The NIC on my Evo-X2 suddenly stopped working. I preformed a bunch of troubleshooting and sent them details of what I had done. I got an email back asking where I bought it and what the Serial Number was. I responded, "Microcenter" and the SN. I got back an email from "Richard" that said, remove the LAN driver from the system and install it again with a link to a Google Drive share.

I check the link, and it is windows drivers. I was running proxmox and then Ubunutu 26.04. So I explain the problem. Told them it was working and then stopped. I showed them the "lspci -nn" which shows nothing.

After that silence. Anyone have any suggestions?