Recently I finished my new PC which includes MSI MAG B660M Mortar WIFI+i7 13700k. After updating bios to the last version and load bios optimized default values i runned few tests including Cinebench R23 and i immediately noticed very high vcore - 1,44v and TDP more than 320W. As a result CPU temp reached 100C and thermal throttling began.
But the Cinebench result was pretty OK - 29200 which is almost normal (I've seen 310000 on 13700K in some reviews)
So, i tried to found out how to reduce both Vcore and TDP.
Minimal possible negative offset in this MB is only -0.05v so it doesn't help a lot. Next i tried to reduce level of cpu lite load control (default was 9 in my case) - both directly or switch it in advance mode and reducing DC and AC loadline (default were 80 which match to 9 level of lite control). Decreasing these values had great impact on both vcore and TDP - f.e. setting lite control to 7 led to Vcore to reasonable 1,35v and tdp about 220-250w. Temp in this case was only 80 under Cinebech test.
BUT!!! This decreasing has a geat impact on СPU performance - i got only near 20000 score in Cinebench insted of 30000. The problem is that in this case IA CEP detected 'fake' vdroop and tried to 'protect' CPU by throttling it. And unlike many others MBs IA CEP couldn't be disable in bios.
So, this problem with high CPU Vcore is totally unsolved in this MB - both approaches with negative offset or decreasing AC\DC loadlines level don't work due to BIOS functionality restriction. What is the big shame cause from hardware prospective this MB is one of the best on 660 chipset which could easily run any CPU 12\13 gen including 13900k.
I'm totally disappointed in this MB and will try to replace it to anything else.
P.S. For cooling I use custom made water cooling which includes 2 D5 pumps, 3 radiators (2x280mm and 240mm) and EK velocity waterblock so there is no bottlenecks here.I tried to change thermal paste and control the pressure of the water block - everything is perfect in this part. But there's no way to dispel more than 300 watts from CPU without deliding it.
But the Cinebench result was pretty OK - 29200 which is almost normal (I've seen 310000 on 13700K in some reviews)
So, i tried to found out how to reduce both Vcore and TDP.
Minimal possible negative offset in this MB is only -0.05v so it doesn't help a lot. Next i tried to reduce level of cpu lite load control (default was 9 in my case) - both directly or switch it in advance mode and reducing DC and AC loadline (default were 80 which match to 9 level of lite control). Decreasing these values had great impact on both vcore and TDP - f.e. setting lite control to 7 led to Vcore to reasonable 1,35v and tdp about 220-250w. Temp in this case was only 80 under Cinebech test.
BUT!!! This decreasing has a geat impact on СPU performance - i got only near 20000 score in Cinebench insted of 30000. The problem is that in this case IA CEP detected 'fake' vdroop and tried to 'protect' CPU by throttling it. And unlike many others MBs IA CEP couldn't be disable in bios.
So, this problem with high CPU Vcore is totally unsolved in this MB - both approaches with negative offset or decreasing AC\DC loadlines level don't work due to BIOS functionality restriction. What is the big shame cause from hardware prospective this MB is one of the best on 660 chipset which could easily run any CPU 12\13 gen including 13900k.
I'm totally disappointed in this MB and will try to replace it to anything else.
P.S. For cooling I use custom made water cooling which includes 2 D5 pumps, 3 radiators (2x280mm and 240mm) and EK velocity waterblock so there is no bottlenecks here.I tried to change thermal paste and control the pressure of the water block - everything is perfect in this part. But there's no way to dispel more than 300 watts from CPU without deliding it.
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