• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

SAM problem

eidairaman1

The Exiled Airman
Joined
Jul 2, 2007
Messages
43,596 (6.77/day)
Location
Republic of Texas (True Patriot)
System Name PCGOD
Processor AMD FX 8350@ 5.0GHz
Motherboard Asus TUF 990FX Sabertooth R2 2901 Bios
Cooling Scythe Ashura, 2×BitFenix 230mm Spectre Pro LED (Blue,Green), 2x BitFenix 140mm Spectre Pro LED
Memory 16 GB Gskill Ripjaws X 2133 (2400 OC, 10-10-12-20-20, 1T, 1.65V)
Video Card(s) AMD Radeon 290 Sapphire Vapor-X
Storage Samsung 840 Pro 256GB, WD Velociraptor 1TB
Display(s) NEC Multisync LCD 1700V (Display Port Adapter)
Case AeroCool Xpredator Evil Blue Edition
Audio Device(s) Creative Labs Sound Blaster ZxR
Power Supply Seasonic 1250 XM2 Series (XP3)
Mouse Roccat Kone XTD
Keyboard Roccat Ryos MK Pro
Software Windows 7 Pro 64
Go to a shop
 
Joined
Feb 20, 2019
Messages
8,776 (4.01/day)
System Name Bragging Rights
Processor Atom Z3735F 1.33GHz
Motherboard It has no markings but it's green
Cooling No, it's a 2.2W processor
Memory 2GB DDR3L-1333
Video Card(s) Gen7 Intel HD (4EU @ 311MHz)
Storage 32GB eMMC and 128GB Sandisk Extreme U3
Display(s) 10" IPS 1280x800 60Hz
Case Veddha T2
Audio Device(s) Apparently, yes
Power Supply Samsung 18W 5V fast-charger
Mouse MX Anywhere 2
Keyboard Logitech MX Keys (not Cherry MX at all)
VR HMD Samsung Oddyssey, not that I'd plug it into this though....
Software W10 21H1, barely
Benchmark Scores I once clocked a Celeron-300A to 564MHz on an Abit BE6 and it scored over 9000.
Tried to do that manual from the video step by step for this board. BIOS Flashback LED light is now green for 20min as it was blinking for 3 seconds in the begining.It says wait until the light goes out.Should I stay like that for another 30 minutes?
Honestly, I don't know. I've never had to do one on an Asus board, I've been avoiding ASUS boards as much as possible for a good decade or so at this point and have only used a handful of recent models and only because they filled a specific niche.

At a guess, based on experience with Asrock/MSI/Gigabyte, the LED should flash for at least a minute or two. If it stopped flashing almost immediately I think that means the flash failed or it never started. If you definitely have a compatible BIOS and it's failing to even perform a recovery flash then it's yet more clues that your board has problems.
 
Joined
Feb 15, 2024
Messages
210 (0.57/day)
System Name Mid-Range
Processor Ryzen 5 5600x
Motherboard ASUS TUF Gaming B550 Plus WiFi II
Cooling AiO LS 520 White edition(MX-6 thermal paste applied)
Memory 2x16GB DDR4 3600Mhz CL18 Corsair Vengeance RGB PRO SL
Video Card(s) RX 7700 XT ASRock Steel Legend 12GB
Storage TeamGroup Cardea A440 1TB 4gen Nvme / 512GB WD black SN810 nvme 1
Display(s) MSI G272QPF 27 inch 2560x1440p 170hz + Technika 1080p 24'' 60hz
Case NZXT H6 Flow ARGB + 2x140mm Lian Li Uni infinity mirror
Audio Device(s) RGB Kogaion Speakers/Naraka bladepoint MR720 headset
Power Supply EVGA Supernova G2 650Watts 80 plus Gold
Mouse A4 Tech Bloody Naraka W95 MAX
Keyboard A4 Tech Bloody Naraka S98 Mechanical
VR HMD no
Software Windows 11 64bit 24H2
Go to a shop
That's not an option

Honestly, I don't know. I've never had to do one on an Asus board, I've been avoiding ASUS boards as much as possible for a good decade or so at this point and have only used a handful of recent models and only because they filled a specific niche.

At a guess, based on experience with Asrock/MSI/Gigabyte, the LED should flash for at least a minute or two. If it stopped flashing almost immediately I think that means the flash failed or it never started. If you definitely have a compatible BIOS and it's failing to even perform a recovery flash then it's yet more clues that your board has problems.
Now I am wondering what mobo to get for that 5800x3d to run without any problems having 2 NVME in the system...
 
Joined
Oct 16, 2018
Messages
976 (0.42/day)
Location
Uttar Pradesh, India
Processor AMD R7 1700X @ 4100Mhz
Motherboard MSI B450M MORTAR MAX (MS-7B89)
Cooling Phanteks PH-TC14PE
Memory Crucial Technology 16GB DR (DDR4-3600) - C9BLM:045M:E BL16G36C16U4W.M16FE1 X2 @ CL14
Video Card(s) XFX RX480 GTR 8GB @ 1408Mhz (AMD Auto OC)
Storage Samsung SSD 850 EVO 250GB
Display(s) Acer KG271 1080p @ 81Hz
Power Supply SuperFlower Leadex II 750W 80+ Gold
Keyboard Redragon Devarajas RGB
Software Microsoft Windows 10 (10.0) Professional 64-bit
Benchmark Scores https://valid.x86.fr/mvvj3a
A cheaper solution than getting another mobo is getting a cheap NVME PCI adapter.
I am running 3 of these adapters on different systems. Works great with all my NVME drives.

Had an issue on my b450 with the second NVME slot so this solution worked great for me.
I also get full rated speeds from my NVME drives.

Screenshot 2025-02-15 at 20-29-57 Verilux® NVME Adapter PCIe x16 with Gel Pad M.2 NVME or AHCI...png
Screenshot 2025-02-15 at 20-32-04 Amazon.in Buy Sabrent NVMe M.2 SSD to PCIe X16_X8_X4 Card wi...png


There is also option for 2 and 3 NVME adapters as well. Check what is available in your country.
 
Joined
Feb 20, 2019
Messages
8,776 (4.01/day)
System Name Bragging Rights
Processor Atom Z3735F 1.33GHz
Motherboard It has no markings but it's green
Cooling No, it's a 2.2W processor
Memory 2GB DDR3L-1333
Video Card(s) Gen7 Intel HD (4EU @ 311MHz)
Storage 32GB eMMC and 128GB Sandisk Extreme U3
Display(s) 10" IPS 1280x800 60Hz
Case Veddha T2
Audio Device(s) Apparently, yes
Power Supply Samsung 18W 5V fast-charger
Mouse MX Anywhere 2
Keyboard Logitech MX Keys (not Cherry MX at all)
VR HMD Samsung Oddyssey, not that I'd plug it into this though....
Software W10 21H1, barely
Benchmark Scores I once clocked a Celeron-300A to 564MHz on an Abit BE6 and it scored over 9000.
That's not an option


Now I am wondering what mobo to get for that 5800x3d to run without any problems having 2 NVME in the system...
Changing the motherboard seems like a dumb decision to make until you've actually made sure that the motherboard is the problem.

Step1 is to identify the problem. Throwing money at random things with no guarantee of fixing it is usually a terrible idea unless you are rich and don't care about money at all. Diagnose it by eliminating variables one at a time, as several people have already suggested. If your BIOS flashback failed after one attempt, check you're doing everything right, check your USB stick isn't corrupt, check your download checksum etc. Flashing a BIOS on a modern board can be done numerous ways, under numerous conditions - All of your problems appear to be with the 5800X3D in the board, so try flashing/flashback using the known-good 5600X, maybe? Yes, replacing the AIO each time is a pain, but maybe you should go to a spare air cooler or stock cooler temporarily until you can resolve this problem.

Edit:
If the motherboard is faulty, and it has issues with both your CPUs, and it refuses to flash to a known-working BIOS versions, is it under warranty? IIRC Asus and Gigabyte boards usually have 3y warranties. I guess it depends when you bought it exactly...
 
Last edited:
Joined
Feb 15, 2024
Messages
210 (0.57/day)
System Name Mid-Range
Processor Ryzen 5 5600x
Motherboard ASUS TUF Gaming B550 Plus WiFi II
Cooling AiO LS 520 White edition(MX-6 thermal paste applied)
Memory 2x16GB DDR4 3600Mhz CL18 Corsair Vengeance RGB PRO SL
Video Card(s) RX 7700 XT ASRock Steel Legend 12GB
Storage TeamGroup Cardea A440 1TB 4gen Nvme / 512GB WD black SN810 nvme 1
Display(s) MSI G272QPF 27 inch 2560x1440p 170hz + Technika 1080p 24'' 60hz
Case NZXT H6 Flow ARGB + 2x140mm Lian Li Uni infinity mirror
Audio Device(s) RGB Kogaion Speakers/Naraka bladepoint MR720 headset
Power Supply EVGA Supernova G2 650Watts 80 plus Gold
Mouse A4 Tech Bloody Naraka W95 MAX
Keyboard A4 Tech Bloody Naraka S98 Mechanical
VR HMD no
Software Windows 11 64bit 24H2
Changing the motherboard seems like a dumb decision to make until you've actually made sure that the motherboard is the problem.

Step1 is to identify the problem. Throwing money at random things with no guarantee of fixing it is the behaviour of fools.

If the motherboard is faulty, is it under warranty? IIRC Asus and Gigabyte boards usually have 3y warranties.
Yep , it's still under warranty. The same CPU works good with Rog Strix B550 F gaming (no wifi) which is kinda 1 idea lower featured mobo than mine but yet here we are... The problem with RMA is that I will be staying without PC (I am staying on PC all the day , I work from it) and I can't let that happen. I can spend 2-3 hours reasembling the pc with new mobo rather than wating 2 months for RMA because in my country this procedure is slow...re a ... llyy... s l o w

And for the past 2 days I tried at least 55-60 things to fix this with all the advices around the internet I could gather from people on forums - nothing worked. I wrote to ASUS support , AMD support - I don't expect answer in the next couple of days or weeks.
 
Last edited:
Joined
Feb 20, 2019
Messages
8,776 (4.01/day)
System Name Bragging Rights
Processor Atom Z3735F 1.33GHz
Motherboard It has no markings but it's green
Cooling No, it's a 2.2W processor
Memory 2GB DDR3L-1333
Video Card(s) Gen7 Intel HD (4EU @ 311MHz)
Storage 32GB eMMC and 128GB Sandisk Extreme U3
Display(s) 10" IPS 1280x800 60Hz
Case Veddha T2
Audio Device(s) Apparently, yes
Power Supply Samsung 18W 5V fast-charger
Mouse MX Anywhere 2
Keyboard Logitech MX Keys (not Cherry MX at all)
VR HMD Samsung Oddyssey, not that I'd plug it into this though....
Software W10 21H1, barely
Benchmark Scores I once clocked a Celeron-300A to 564MHz on an Abit BE6 and it scored over 9000.
Yep , it's still under warranty. The same CPU works good with Rog Strix B550 F gaming (no wifi) which is kinda 1 idea lower featured mobo than mine but yet here we are... The problem with RMA is that I will be staying without PC (I am staying on PC all the day , I work from it) and I can't let that happen. I can spend 2-3 hours reasembling the pc with new mobo rather than wating 2 months for RMA because in my country this procedure is slow...re a ... llyy... s l o w
I guess if you're 100% sure the CPU works fine with SAM in another board you could buy a replacement, RMA the Asus B550 Plus and then sell the new, unopened replacement on ebay or something.

The boards you mentioned are all fine, I've used them all. I've also built dozens of AM4 systems using the Aorus Elite and it's solid. I run an Aorus X570S with my 5800X3D that's about to be retired, it's given me zero problems over the years and I've had several SSDs, GPUs, CPUs, and RAM in it.

I'd put the 5600X back in and return the 3D before the return window closes.
Also valid. Might just be a quirk of this particular CPU - the diagnosis steps aren't getting done so not a bad option without any further information.
 
Joined
Feb 15, 2024
Messages
210 (0.57/day)
System Name Mid-Range
Processor Ryzen 5 5600x
Motherboard ASUS TUF Gaming B550 Plus WiFi II
Cooling AiO LS 520 White edition(MX-6 thermal paste applied)
Memory 2x16GB DDR4 3600Mhz CL18 Corsair Vengeance RGB PRO SL
Video Card(s) RX 7700 XT ASRock Steel Legend 12GB
Storage TeamGroup Cardea A440 1TB 4gen Nvme / 512GB WD black SN810 nvme 1
Display(s) MSI G272QPF 27 inch 2560x1440p 170hz + Technika 1080p 24'' 60hz
Case NZXT H6 Flow ARGB + 2x140mm Lian Li Uni infinity mirror
Audio Device(s) RGB Kogaion Speakers/Naraka bladepoint MR720 headset
Power Supply EVGA Supernova G2 650Watts 80 plus Gold
Mouse A4 Tech Bloody Naraka W95 MAX
Keyboard A4 Tech Bloody Naraka S98 Mechanical
VR HMD no
Software Windows 11 64bit 24H2
I guess if you're 100% sure the CPU works fine with SAM in another board you could buy a replacement, RMA the Asus B550 Plus and then sell the new, unopened replacement on ebay or something.

The boards you mentioned are all fine, I've used them all. I've also built dozens of AM4 systems using the Aorus Elite and it's solid. I run an Aorus X570S with my 5800X3D that's about to be retired, it's given me zero problems over the years and I've had several SSDs, GPUs, CPUs, and RAM in it.


Also valid. Might just be a quirk of this particular CPU - the diagnosis steps aren't getting done so not a bad option without any further information.
I forgot to mention(my bad) SAM is not the problem.Even with disabled SAM this problem exist. However I like my current motherboard, it looks and feels premium and I have all the features I want. Wifi and x2 gen 2 argb headers 5v. I ordered Rog Strix B550-A Gaming(the white edition) now - it's only 300BGN which is around 145 dollars.The person who sold me this CPU said that he run this cpu with Rog Strix B550-F gaming in order to test it before sell it and showed me video with SAM working and 2 nvme in the M2 slots.Also offered me to swap my cpu for his cpu(which is the same , he got couple of them)+motherboard(B550-F Gamin ROG strix). Which makes me think that he knows what he is selling and its everything tested) and it's not actually the CPU but my motherboard. Some strange problems started occuring after installing this 5800x3d. 1.5month after I bought it in April 2024th I was running my RAM on D.C.O.P mode which is OC mode right ? I used it like that for about month and a half since purchase and then one day suddenly my PC crashed.I had to remove sticks and try to run it in safe mode in order to boot again,after trying to enable DCOP it crashed again. So now I run my RAM on Manual OC which is set to 3600mhz instead of DCOP.That was the first strange thing that happened to me and now this.. It only makes me thing that my mobo is a lemon. But why would it run okay with 5600x except the RAM OC ?

I guess if you're 100% sure the CPU works fine with SAM in another board you could buy a replacement, RMA the Asus B550 Plus and then sell the new, unopened replacement on ebay or something.

The boards you mentioned are all fine, I've used them all. I've also built dozens of AM4 systems using the Aorus Elite and it's solid. I run an Aorus X570S with my 5800X3D that's about to be retired, it's given me zero problems over the years and I've had several SSDs, GPUs, CPUs, and RAM in it.


Also valid. Might just be a quirk of this particular CPU - the diagnosis steps aren't getting done so not a bad option without any further information.
If it's just a quirk of the CPU it's much easier for me to return the new mobo I just ordered (I have 14 days return policy) and just buy 2TB NVME drive for the working M1 slot so I can compensate for my M2_2 drive. I can do it right now but I feel itchy that something is not working in my system :( A decent 2TB nvme drive cost the same as a new motherboard AM4 B550 chipset


For me - everything points out to the motherboard.I can't even do a bios flashback with it. Tried with dissasembling the whole pc , do a bios flashback with only CPU power and ATX power cables - the green light goes 3 times and then starts constantly in green. It should keep pulsates but it just turn green.And yes I did the renaming process for older bios, I also tried via EZ flash utility in BIOS too and it says ''not propper bios file'' ... Wheter it is BIOS or some strange incompatibility it is worth to change the motherboard and try again. If this error occurs with the new mobo then everything will be clear as a day - bad CPU :)

I forgot to mention(my bad) SAM is not the problem.Even with disabled SAM this problem exist. However I like my current motherboard, it looks and feels premium and I have all the features I want. Wifi and x2 gen 2 argb headers 5v. I ordered Rog Strix B550-A Gaming(the white edition) now - it's only 300BGN which is around 145 dollars.The person who sold me this CPU said that he run this cpu with Rog Strix B550-F gaming in order to test it before sell it and showed me video with SAM working and 2 nvme in the M2 slots.Also offered me to swap my cpu for his cpu(which is the same , he got couple of them)+motherboard(B550-F Gamin ROG strix). Which makes me think that he knows what he is selling and its everything tested) and it's not actually the CPU but my motherboard. Some strange problems started occuring after installing this 5800x3d. 1.5month after I bought it in April 2024th I was running my RAM on D.C.O.P mode which is OC mode right ? I used it like that for about month and a half since purchase and then one day suddenly my PC crashed.I had to remove sticks and try to run it in safe mode in order to boot again,after trying to enable DCOP it crashed again. So now I run my RAM on Manual OC which is set to 3600mhz instead of DCOP.That was the first strange thing that happened to me and now this.. It only makes me thing that my mobo is a lemon. But why would it run okay with 5600x except the RAM OC ?


If it's just a quirk of the CPU it's much easier for me to return the new mobo I just ordered (I have 14 days return policy) and just buy 2TB NVME drive for the working M1 slot so I can compensate for my M2_2 drive. I can do it right now but I feel itchy that something is not working in my system :( A decent 2TB nvme drive cost the same as a new motherboard AM4 B550 chipset


For me - everything points out to the motherboard.I can't even do a bios flashback with it. Tried with dissasembling the whole pc , do a bios flashback with only CPU power and ATX power cables - the green light goes 3 times and then starts constantly in green. It should keep pulsates but it just turn green.And yes I did the renaming process for older bios, I also tried via EZ flash utility in BIOS too and it says ''not propper bios file'' ... Wheter it is BIOS or some strange incompatibility it is worth to change the motherboard and try again. If this error occurs with the new mobo then everything will be clear as a day - bad CPU :)
The reason why I choose ROG strix B550 A-gaming is because I found no threads about dead 5800x3d CPU with it.
I tried first searching for ASRock B550 Steel legend frying x2 5800x3d chips on a same person - skipped
Then I looked out for MSI B550 Tomahawk MAX Wifi - again another thread and compatibility issues.
This B550A-gaming is the same as F-gaming (only the colour) and for sure this particular CPU I have was working with that mobo according to the seller and according to the video he showed me.

I guess if you're 100% sure the CPU works fine with SAM in another board you could buy a replacement, RMA the Asus B550 Plus and then sell the new, unopened replacement on ebay or something.

The boards you mentioned are all fine, I've used them all. I've also built dozens of AM4 systems using the Aorus Elite and it's solid. I run an Aorus X570S with my 5800X3D that's about to be retired, it's given me zero problems over the years and I've had several SSDs, GPUs, CPUs, and RAM in it.


Also valid. Might just be a quirk of this particular CPU - the diagnosis steps aren't getting done so not a bad option without any further information.
https://www.guru3d.com/review/amd-ryzen-7-5800x3d-review/page-3/ considering this page information , does it have to do at all with my CPU and Motherboard ?!?!


I am more focusing on ''Of course, if one PCIe Gen 4 NVMe SSD is plenty enough for you, we'd advise B550. And if you are fine with PCIe Gen 3.0, honestly after January 2021 look for a nice B450 or X470 motherboard. The processor and memory performance will not be any different on all platforms. There's a lot of value to be gained by making clever choices here.''

Does that mean I will have to work with only 1 NVME ? And if this is the case then OKAY - I Am good with it as soon as there is not something wrong with my hardware parts I will just switch to bigger NVME storage device rather buying another motherboard lol...


Nevermind: I miscomprehended things maybe
 
Last edited:
Joined
Feb 20, 2019
Messages
8,776 (4.01/day)
System Name Bragging Rights
Processor Atom Z3735F 1.33GHz
Motherboard It has no markings but it's green
Cooling No, it's a 2.2W processor
Memory 2GB DDR3L-1333
Video Card(s) Gen7 Intel HD (4EU @ 311MHz)
Storage 32GB eMMC and 128GB Sandisk Extreme U3
Display(s) 10" IPS 1280x800 60Hz
Case Veddha T2
Audio Device(s) Apparently, yes
Power Supply Samsung 18W 5V fast-charger
Mouse MX Anywhere 2
Keyboard Logitech MX Keys (not Cherry MX at all)
VR HMD Samsung Oddyssey, not that I'd plug it into this though....
Software W10 21H1, barely
Benchmark Scores I once clocked a Celeron-300A to 564MHz on an Abit BE6 and it scored over 9000.
Does that mean I will have to work with only 1 NVME ? And if this is the case then OKAY - I Am good with it as soon as there is not something wrong with my hardware parts I will just switch to bigger NVME storage device rather buying another motherboard lol...


Nevermind: I miscomprehended things maybe
Yeah, if you didn't already work it out it means that B550 supports one PCIe 4.0 slot, usually the one nearest the CPU socket. Your other M.2 slot uses PCIe 3.0, if a B550 board supports more than two M.2 slots, it's going to split the four PCIe 3.0 lanes between the 2nd and 3rd slots.
 
Joined
Feb 15, 2024
Messages
210 (0.57/day)
System Name Mid-Range
Processor Ryzen 5 5600x
Motherboard ASUS TUF Gaming B550 Plus WiFi II
Cooling AiO LS 520 White edition(MX-6 thermal paste applied)
Memory 2x16GB DDR4 3600Mhz CL18 Corsair Vengeance RGB PRO SL
Video Card(s) RX 7700 XT ASRock Steel Legend 12GB
Storage TeamGroup Cardea A440 1TB 4gen Nvme / 512GB WD black SN810 nvme 1
Display(s) MSI G272QPF 27 inch 2560x1440p 170hz + Technika 1080p 24'' 60hz
Case NZXT H6 Flow ARGB + 2x140mm Lian Li Uni infinity mirror
Audio Device(s) RGB Kogaion Speakers/Naraka bladepoint MR720 headset
Power Supply EVGA Supernova G2 650Watts 80 plus Gold
Mouse A4 Tech Bloody Naraka W95 MAX
Keyboard A4 Tech Bloody Naraka S98 Mechanical
VR HMD no
Software Windows 11 64bit 24H2
Yeah, if you didn't already work it out it means that B550 supports one PCIe 4.0 slot, usually the one nearest the CPU socket. Your other M.2 slot uses PCIe 3.0, if a B550 board supports more than two M.2 slots, it's going to split the four PCIe 3.0 lanes between the 2nd and 3rd slots.
Mine have only 2 M2 slots , M1 which is connected to CPU and M2(the problematic one) which is connected to the chipset.I don't think it have to split anything , but what it could be ? Am I understanding right that these 2 slots doesn't have to interfere ? I tried settings M1 slot to gen1 and M2 slot to gen1 , also disabling wifi controller and Sata controllers.

I asked DeepSeek which I find hilarious but yeah , I blowed my mind in the last 2 days trying to solve what is it. Here is the response :


1. The Problem Isn’t About PCIe Lanes

  • B550 supports two NVMe drives:
    • The primary M.2_1 slot uses PCIe 4.0 x4 lanes directly from the CPU.
    • The secondary M.2_2 slot uses PCIe 3.0 x4 lanes from the chipset.
    • The lanes are sufficient, and the motherboard is designed to handle both slots simultaneously.
  • The issue arises during cold boot initialization, not lane allocation. When you reboot via BIOS (a "warm" reboot), the system skips certain hardware checks, allowing the drive to appear.

2. Why Cold Boot Fails but Warm Boot Works

  • Cold Boot:
    • The system performs a full hardware initialization from a completely powered-off state.
    • The 5800X3D’s unique 3D V-Cache or firmware may cause a timing mismatch or handshake failure with the chipset during this phase, leading the BIOS to ignore the M.2_2 slot.
  • Warm Boot (BIOS reboot):
    • The system retains some power (e.g., via standby voltages) and skips re-initializing certain components.
    • The NVMe drive is already "awake" and detected by the BIOS.
  • This behavior is common in firmware bugs where hardware detection fails during cold initialization but works after partial resets.

3. Root Cause: Firmware/CPU Compatibility

  • The 5800X3D’s 3D V-Cache alters the CPU’s internal communication pathways, which can interact unpredictably with older motherboard firmware.
  • Examples of similar issues:
    • Some users reported NVMe detection problems with Ryzen 5000-series CPUs until BIOS updates fixed PCIe training routines.
    • ASUS boards sometimes struggle with PCIe device initialization on cold boots when using newer CPUs (e.g., early BIOS versions for Ryzen 7000).

4. Solutions to Force Detection on Cold Boot

  • Force PCIe Gen3 Mode for M.2_2:
    • In BIOS, manually set the M.2_2 slot to PCIe 3.0 instead of "Auto." This simplifies the initialization process and bypasses Gen4-related quirks.
  • Disable PCIe Link Power Management:
    • In BIOS, under Power Settings, disable features like Global C-States or PCIe ASPM to prevent aggressive power-saving states from interfering.
  • Update BIOS:
    • Check for newer BIOS versions (e.g., ASUS may have released a patch for 5800X3D PCIe initialization).
  • Contact ASUS Support:
    • Report the issue and reference similar cases (e.g., Reddit threads where users resolved this by forcing Gen3 mode).

5. Why This Isn’t a Dealbreaker

  • Your hardware is functional—the NVMe works once detected. This is purely a firmware-level bug.
  • If ASUS releases a BIOS update, the issue will likely disappear. Until then, using M.2_1 for your primary drive (or tolerating the warm reboot workaround) is a valid stopgap.

Final Thoughts​

This isn’t a hardware defect or lane shortage—it’s a firmware hiccup caused by the 5800X3D’s unique design interacting with your motherboard’s BIOS. Stick with your current setup if you can tolerate the workaround, or push ASUS for a BIOS fix. If dual NVMe drives are critical, consider moving to an X570 board (better PCIe Gen4 support) or using a SATA SSD for secondary storage.
 
Top