Extra Ram- overclock failed

Blueday

Blueday

Blueday

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27 Jan 2021
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5
Hi
Hope I'm posting in the right place.
I have been running a stable overclock on an i5 9600k @ 4.8 GHz. 1.275v

RAM is 2x 8gb Crucial 3000mhz DDR 4

Today,I added another 2 sticks of Crucial 3000 MHz DDR4 to a total of 32 GB.

Went into MSI Bios and set the frequency to 3000, which was showing as 2133mhz, and rebooted.

System would not boot and displayed a message that overclocking had failed and gave me choices of previous OC profiles. I selected the base profile before CPU overclock ( 3.7 GHz) and now the system boots fine.

Would this be that due to the extra RAM that the OC voltage is now inadequate, and therefore unstable?


Vcore is now 1.088v, and the RAM is running 1.368v.

Mobo is MSI Z390 Gaming edge.

Appreciate any advice, thx
 
Yea, I set the RAM speed, and rebooted. Then got the overclock failed message. The only way it would boot was for me to reset the CPU bacl to stock.
I guess I'll have to overclock it again, and find a new stable Vcore.
 
Blueday said:
Hi
Hope I'm posting in the right place.
I have been running a stable overclock on an i5 9600k @ 4.8 GHz. 1.275v

RAM is 2x 8gb Crucial 3000mhz DDR 4

Today,I added another 2 sticks of Crucial 3000 MHz DDR4 to a total of 32 GB.

Went into MSI Bios and set the frequency to 3000, which was showing as 2133mhz, and rebooted.

System would not boot and displayed a message that overclocking had failed and gave me choices of previous OC profiles. I selected the base profile before CPU overclock ( 3.7 GHz) and now the system boots fine.

Would this be that due to the extra RAM that the OC voltage is now inadequate, and therefore unstable?


Vcore is now 1.088v, and the RAM is running 1.368v.

Mobo is MSI Z390 Gaming edge.

Appreciate any advice, thx
Click to expand...
Have you tried XMP off, set at 3000 manually and 1.40v?
 
If you set XMP to on you shouldn't need to set the frequency to 3000 so I would investigate that. It could be that the BIOS is not reporting it correctly, but at best something is misleading.

Don't forget that XMP is actually overclocking parts of the CPU, motherboard and chipset, so it's not guaranteed to work. It may well be working for the first lot of RAM but not the second. Not the RAM's fault but maybe the motherboard.

Also, are you sure the memory is exactly the same? I haven't tried installing different RAM in different sockets for years, but it used to be a real no no even to get the timings different.
 
Understood, thanks. I got the closest Crucial RAM I could find. Same latencies etc. Only difference is no LED cap on the top. What's curious is that even the first set of RAM the BIOS was reporting as 2133 even with XMP on.
CPU-Z is reporting the memory all correctly now, so I'll try to re overclock the CPU and see what happens. Thanks for the advice.
 
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