The motherboard started not booting up with 4 dimms populated.

theforce

theforce

theforce

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Last summer, I built a system for my friend's kid with the following specs:

Motherboard: MSI B550M RRO-VDH WIFI
RAM: Corsair Vengeance 16GB DDR4 3600 2x8GB
CPU: Ryzen 5700G

It has been working fine so far. I popped in another 2 sticks of RAM during the Xmas period and it booted fine the first time and for a few weeks. A few days ago, it started not posting with 4 dimms. I removed two RAM sticks and it worked fine so l updated to the latest version of the BIOS. It works fine with either set of RAM sticks but what is strange is that it was working ok for a couple of weeks and now all of a sudden it has started showing this non-booting up issue. Some more info, the issue happens with either XMP-1 or XMP-2 profile selected with 4 slots populated. What is also strange is that l don't get any sounds from the motherboard speaker when this happens. Speaker is working since it gives a beep code if l turn the system on with no RAM. Also there are no post LEDs showing up on the motherboard showing that something is wrong with the RAM.
 
Ryzen can be a little temperamental with 4 sticks of RAM, often not clocking quite so high as with 2 sticks. Might be worth running memtest and if there's errors backing the RAM speed off a little.
 
theforce said:
Last summer, I built a system for my friend's kid with the following specs:

Motherboard: MSI B550M RRO-VDH WIFI
RAM: Corsair Vengeance 16GB DDR4 3600 2x8GB
CPU: Ryzen 5700G

It has been working fine so far. I popped in another 2 sticks of RAM during the Xmas period and it booted fine the first time and for a few weeks. A few days ago, it started not posting with 4 dimms. I removed two RAM sticks and it worked fine so l updated to the latest version of the BIOS. It works fine with either set of RAM sticks but what is strange is that it was working ok for a couple of weeks and now all of a sudden it has started showing this non-booting up issue. Some more info, the issue happens with either XMP-1 or XMP-2 profile selected with 4 slots populated. What is also strange is that l don't get any sounds from the motherboard speaker when this happens. Speaker is working since it gives a beep code if l turn the system on with no RAM. Also there are no post LEDs showing up on the motherboard showing that something is wrong with the RAM.
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Agree with above, 4 Dimms at 3600 could be on the edge. I think the pro vdh was also a budget board which doesn't help.

You could try turning off fast boot which I think skips memory training when on.

Try without the XMP to see if that cures it.

I'd either try dropping to 3200 manually or swap the Dimms for 2x16 even if you have to eat the cost. Though their parents would likely understand if you explained and they may cover the difference between reselling the 4x8 and a set of 2x16.

Life is too short to be jacking around with some family members random PC issues.
 
Put the ram speed down to 3200mhz because anything higher is considered an overclock. Ram could be bad too. Take the old 2 sticks out and put the new 2 sticks in and see if its stable for a while.
 
philo-sofa said:
The latest AGESA updates definitely improved things, what AGESA firmware are you running?
Click to expand...

I am using the latest BIOS 7C95v2J, which uses AGESA ComboAm4v2PI 1.2.0.B.

The new set of RAM fails in memtest64 even when running at stock 2133Mhz after a few minutes. Tried upping the memory voltage to 1.4 to no avail. The old set has no issues running memtest64+ using X.M.P.

Seems like l will be returning the new set of RAM.
 
theforce said:
I am using the latest BIOS 7C95v2J, which uses AGESA ComboAm4v2PI 1.2.0.B.

The new set of RAM fails in memtest64 even when running at stock 2133Mhz after a few minutes. Tried upping the memory voltage to 1.4 to no avail. The old set has no issues running memtest64+ using X.M.P.

Seems like l will be returning the new set of RAM.
Click to expand...
Hmm. Are they a set of four DIMMs, or two sets of two DIMMS? Also if you run HWINFO64, are they both running with the same memory timings (you'll need to click on the tiny memory picture in the memory section to see what each channel runs at)?
 
Two sets of two DIMMS. I was running CPUz which lists the timing information of each channel. I put the new set on RAM in slots 2 & 4 which are recommended slots for running two modules in duel-channel configuration and l was getting errors in memtest64 with XMP on and also with running at stock speeds of 2133MHz. I will try putting the suspected bad memory modules in my X570 system to verify that the issue persists and that it is indeed a defective module/s from the new pair.

Edit: I have tried the 4 RAM sticks in my system and they are working fine under xmp and they are not showing any errors in memtest64 after 2 hours of running. The 2x16GB modules l was using in my computer work fine with the B550M. I will keep the 4 modules in my system and just give him my RAM.
 
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Glad you got it resolved. I have similar here in terms of swapping RAM with my son's computer to see what works best at what speed, for whatever reason some RAM plays better with a given chipset/IMC than others. I have RAM that works fine at 3866mhz in my Ryzen setup but even 3600mhz on Intel it is a bit flaky.
 
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