MSI B650 Tomahawk Problems - 7600x Nvidia FE 3070ti 2x16GB DDR5 6000Mhz CL30 WD Black SN850X

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stephen.law.g15b802e7

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Hi Everyone,

Thank you for reading. I am having issues with this setup. It has always appeared to be on a knifes edge.

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MSI B650 Tomahawk

- CPU 7600x
- Graphics Nvidia FE 3070ti
- Memory 2x16GB DDR5 6000Mhz CL30
- Drive WD Black SN850X

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Bought a year ago, initially worked, upgraded Bios after a few weeks and had to role back. Then left it as stable.

2 Weeks ago I did a bios and AMD drivers update with a clean Win 11 installation. Ever since the system has not been stable and getting reboots and bluescreen whenever I run games. It is stable browsing and business apps.

Tried.
- Rolling back bios through the last 5 iterations. (currently on latest as all had issues)
- Tested memory using windows memtest feature.
- Tested CPU under load with Furmark CPU Burner
- Using one memory module (Alternated)
- Reinstalling AMD drivers
- Making sure all updates done.
- Trying windows default graphics drivers as well as nvidia own latest drivers.
- 3 different graphics cards.
- Disabled AMD onboard graphics.
- Turning on/off Expo and Game Boost feature. (Currently both off)

Any ideas please?
 
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fewele310161602ee said:
Maybe there is a voltage anomaly somewhere. Open Hwinfo64 app in Sensors mode, take a screenshot of everything in hwinfo and post here.
Click to expand...
Thankyou Here is the screenshot. :) PS Also installed a new MSI 850WattPSU

1747126229153.png
 
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But first Benchmark with Cinebench. Single Core, Multi Core and then GPU while Hwinfo is running in background to check if you see anomalies in voltages like spiking in voltage beyond safe range for example. It can tell you which test crashes PC the most. Since you said reboots and bluescreen when running games, Cinebench GPU test should do the same, telling you GPU is probably the problem.
 
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I have looked at the different voltages as you recommended. The only one that seems to get the system working correctly is if I undervolt the CPU to either 1.15v or 1.2v (Both work ), I dont know if that means a dodgy CPU or something else. Cinebench worked ok even at normal voltage.

This is the HWinfo for 1.2v , big drop in temp on the CPU.

1747136851957.png
 
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Looks like enabling EXPO is setting CPU VDDCR SOC Voltage to 1.3v which is not good, it should be between 1.2v - 1.25v when EXPO is enabled, should never exceed 1.25v.
If you had EXPO enabled since a year ago, it means CPU has been degraded since then somewhat due to high VDDCR SOC Voltage 1.3v. This would be MSI Bios's fault for allowing VDDCR SOC Voltage to exceed beyond 1.25v. It would be a good to RMA the CPU if it is really damaged somewhat.

AMD is also at fault and needs to revise the voltage limits they have set in AGESA. AMD should set Max Core Voltage/Programmed VID Limit to 1.35v instead of 1.4v it is currently, for both 7000 and 9000 series. SOC Voltage limit should be revised to 1.25v instead of 1.3v it is currently which is still not safe long term. CPU VDDIO Voltage should also be limited to max 1.4v by AMD instead of unlimited. And AMD should restrict voltages more strictly so it becomes impossible for CPU to receive higher voltages and can't spike beyond safe voltage range.

And every Bios developer should invent One Click Negative Curve Optimizer Button feature in Bios which will do an easy Undervolt CPU that everyone non-techsavvy can safely enable and forget. Just like EXPO button.
 
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fewele310161602ee said:
Looks like enabling EXPO is setting CPU VDDCR SOC Voltage to 1.3v which is not good, it should be between 1.2v - 1.25v when EXPO is enabled, should never exceed 1.25v.
If you had EXPO enabled since a year ago, it means CPU has been degraded since then somewhat due to high VDDCR SOC Voltage 1.3v. This would be MSI Bios's fault for allowing VDDCR SOC Voltage to exceed beyond 1.25v. It would be a good to RMA the CPU if it is really damaged somewhat.

AMD is also at fault and needs to revise the voltage limits they have set in AGESA. AMD should set Max Core Voltage/Programmed VID Limit to 1.35v instead of 1.4v it is currently, for both 7000 and 9000 series. SOC Voltage limit should be revised to 1.25v instead of 1.3v it is currently which is still not safe long term. CPU VDDIO Voltage should also be limited to max 1.4v by AMD instead of unlimited. And AMD should restrict voltages more strictly so it becomes impossible for CPU to receive higher voltages and can't spike beyond safe voltage range.

And every Bios developer should invent One Click Negative Curve Optimizer Button feature in Bios which will do an easy Undervolt CPU that everyone non-techsavvy can safely enable and forget. Just like EXPO button.
Click to expand...
Some good info here. Thank you. :)
 
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