Severe X870 Tomahawk issues

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Leon255156302e1

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I recently bought the X870 Tomahawk to use with a 9800x3d and Corsair 2x16Gb 6000CL30 EXPO (CMK32GX5M2B6000Z30) but I'm having lots of issues...
Frequent crashes (windows sometimes shows "Clock watchdog timeout" BSOD, sometimes no blue screen), my NVME drives sometimes disappear (I need to turn off the power completely, a reboot isn't enough to show it again) making the OS unable to boot and I could not get the Wifi to work.

Today during a reboot there was a warning that the hardware changed so I press F1 to open the bios and the EXPO profile simply disappeared! I exit the bios, boot the system and now it only shows 4Gb of RAM?!? The system is very slow too.
I'm using the latest bios, but it isn't stable, please advise.
 

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My real issue is I cannot get the board to use the Nvidia 979 board. If I have it installed windows crashes on startup and I can never get an output from it. No 970 installed, on integrated graphics and everything is fine. Bios selection is on PEG when the 970 is installed and the MSI refuses to output through HDMI on it. Any thoughts please?
As above set from AUTO to GEN 3 or GEN 2
1733209560370.png
 
I have tried all three available BIOS versions and none of them allow me to run this Corsair 6000 CL30 kit at its rated speed, none allow 5600 at any of the suggested settings either. I can get 4800 CL26-32-32-70 to run with no errors or other issues so till I can get an ASUS board Ill have to deal with this speed. Its baffling MSI let this compatibility issue get passed their QA, I'm sending this X870 Tomahawk to the bin as soon as I get the ASUS board, its not even worth selling second hand and its outside its return window. (Trash belongs in the trash and MSI need to up their game)

Seems you got lucky to even get 5600.
Is it one of these kits? If not, then it is not officially supported. The first thing to do before buying RAM is to check the QVL list of the motherboard. For many, however, this is an insurmountable hurdle...

1733211184435.png
 
Is it one of these kits? If not, then it is not officially supported. The first thing to do before buying RAM is to check the QVL list of the motherboard. For many, however, this is an insurmountable hurdle...

View attachment 195925
QVL is a guide not the be all and end all of compatibility, DDR4 and DDR3 were the same QVL lists that dont ever get updated and are missing 90% of the available ram kits on the market. But to answer your question yes it was checked before and I had to go with what was avaliable locally to me, since its a Corsair kit with EXPO and certified to work with Ryzen 9000 I grabbed it. Normally this means its going to work and it works fine in any other board than this one, its this specific board that has the A6 issue and Im not alone in this board throwing that error.

This is not a user error its a MSI error, this user can only buy whats avalaible locally and im sure others face the very same issue and dont come asking for help only to get shade.

MSI needs to get their dev team onto fixing this instead of handballing it to everything but their terrible bios.

-Thankfully I have a very quick fix for the issue, it involves a new board that is confirmed working with this CPU and Ram which isnt on that boards QVL either.
 
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I’ve put the 970 in an older computer and it’s working perfectly. I should add the old computer is a 5900X with a MSI tomahawk motherboard too!


What is wrong with the MSI x870 that it won’t output using a discrete card??
 
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What is wrong with the MSI x870 that it won’t output using a discrete card??
Not just GPU but several older model PCIE Cards don't work on the 600 or 800 series Motherboards

Out of interest have you tried it in the very bottom PCIE slot? that one is 16x slot PCIE 4.0x4
 
My real issue is I cannot get the board to use the Nvidia 979 board. If I have it installed windows crashes on startup and I can never get an output from it. No 970 installed, on integrated graphics and everything is fine. Bios selection is on PEG when the 970 is installed and the MSI refuses to output through HDMI on it. Any thoughts please?

Check if it needs this firmware update: https://www.nvidia.com/en-us/drivers/nv-uefi-update-x64/

NVIDIA FW update 1.jpg
NVIDIA FW update 2.jpg
 
QVL is a guide not the be all and end all of compatibility, DDR4 and DDR3 were the same QVL lists that dont ever get updated and are missing 90% of the available ram kits on the market.
I hear this false statement again and again and again. So who has problems first? Exactly, those who don't have parts from the QVL. It is not always the motherboard that is defective, but incompatible parts. You can rule this out by using those parts. But that would be too easy.
 
I have tried all three available BIOS versions and none of them allow me to run this Corsair 6000 CL30 kit at its rated speed, none allow 5600 at any of the suggested settings either. I can get 4800 CL26-32-32-70 to run with no errors or other issues so till I can get an ASUS board Ill have to deal with this speed. Its baffling MSI let this compatibility issue get passed their QA, I'm sending this X870 Tomahawk to the bin as soon as I get the ASUS board, its not even worth selling second hand and its outside its return window. (Trash belongs in the trash and MSI need to up their game)

Seems you got lucky to even get 5600.
I'm having a similar issue on the X870 Tomahawk, with a 9800X3D. I'm using some similar RAM (6000 CL30) but 64GB and from patriot, PVV564G600C30K, which are also not on QVL. I can get EXPO 2 (5600) running fine but EXPO 1 refuses to post. Some manual tuning has shown the sticks are only ever running at 1.1V regardless of the 3 current BIOS versions and what the extreme voltages setting is (From reading both in bios and in windows). Other voltages, like the CPU ones, respond fine to changes in the bios so I think it's a communication issue between the mobo and ram PMIC.

I'm sticking to EXPO 2 for now but I hope MSI fix their bios soon.
If you see this could you confirm if your ram VDD can get more than 1.1V?
 
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I'm having a similar issue on the X870 Tomahawk, with a 9800X3D. I'm using some similar RAM (6000 CL30) but 64GB and from patriot, PVV564G600C30K, which are also not on QVL. I can get EXPO 2 (5600) running fine but EXPO 1 refuses to post. Some manual tuning has shown the sticks are only ever running at 1.1V regardless of the 3 current BIOS versions and what the extreme voltages setting is (From reading both in bios and in windows). Other voltages, like the CPU ones, respond fine to changes in the bios so I think it's a communication issue between the mobo and ram PMIC.

I'm sticking to EXPO 2 for now but I hope MSI fix their bios soon.
If you see this could you confirm if your ram VDD can get more than 1.1V?
I have P Viper Venom 32GB kit 6400 CL32 ( PVVR532G640C32K) running nicely - my A-XMP profiles use 1.4v which it sets automatically with the profile. My kit doesn't come up as EXPO.

1733425733926.png
 
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Exactly, those who don't have parts from the QVL. It is not always the motherboard that is defective, but incompatible parts. You can rule this out by using those parts. But that would be too easy.
OK explain why Samsung and WD drives on the QVL list that don't work. for the odd user.

The QVL is a Tool to be used as a guide
Even items on the QVL are not guaranteed to work, due to minor tolerances in items Like CPU. RAM and SSD as well as the Chipsets on the Motherboards

All need to meet the minimum requirements set by manufacturers Hence the Binning., but if your CPU and Chipset are towards the lower end of a pass your going to get problems if the other hardware only just managed a pass or are lower binned products.
 
I'm having a similar issue on the X870 Tomahawk, with a 9800X3D. I'm using some similar RAM (6000 CL30) but 64GB and from patriot, PVV564G600C30K, which are also not on QVL. I can get EXPO 2 (5600) running fine but EXPO 1 refuses to post. Some manual tuning has shown the sticks are only ever running at 1.1V regardless of the 3 current BIOS versions and what the extreme voltages setting is (From reading both in bios and in windows). Other voltages, like the CPU ones, respond fine to changes in the bios so I think it's a communication issue between the mobo and ram PMIC.

I'm sticking to EXPO 2 for now but I hope MSI fix their bios soon.
If you see this could you confirm if your ram VDD can get more than 1.1V?
I have absolutely the same issue with corsair CMK96GX5M2B6000Z30 (running 9800x3d and x870 tomahawk), I'm stuck with MEM VDD 1.1 / MEM VDDQ 1.1. I don't have the option to change mem vdd in bios. Hope the MSI will fix their bios
 
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