Question System Freezing after upgrading RAM to 32GB @ 3600MHz from 16gb @ 3000MHz ?

tjbalon

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Aug 25, 2019
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Hello,

I just upgraded my ram to Corsair VENGEANCE RGB PRO 32GB (2x16GB) DDR4 3600 , from Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 3000MHz, and already had: the motherboard GIGABYTE Z390 AORUS PRO and an i7-9700k.

Upon upgrading it, I booted into the BIOS, selected 'Profile 1' XMP which was at 3600MHz, and launched my PC. I was able to load a few applications, launch a game, play through a raid (EFT), and then everything froze (all images were completely still, computer sounded like fans were churning, headset/keyboard/mouse disconnected).

Rebooted, did the same thing.. crashed again. Swapped out to my previous kit (16gb @3000MHz using XMP), things seemed to run fine.. ran a few raids, opened a bunch of applications to 'stress' it. Was unable to get it to go down.

Swapped back to the new 32GB kit, thought maybe it was an issue with how I sat the ram... same issue crashing (this time it lasted longer, but I think the duration is irrelevant).

Now I am down to 2666MHz, which seems to be stable (have not done enough strenuous to guarantee that).

Searching around, saw some information that it could be an issue that I am using slots 1 & 3, instead of 2 & 4? Also saw some information that it might be that my motherboard (according to amazon) only supports up to 2133MHz.

I tried to find information regarding this via the manual.
Only saw this:
Channel A: DDR4_A1, DDR4_A2 Channel B: DDR4_B1, DDR4_B2
This makes me think they are suggesting the channel(s) are slot 1&2, 3&4, but I am pretty confident I am just understanding that wrong.

I'd really like to benefit from the full 3600MHz. The BIOS said it was 3600MHz @ 1.39v via the XMP profile. Nothing else is OC on the system, not very familiar with OCing at all.

Here is some random CPU-Z information that might be relevant about the XMP profiling, etc :^)
Code:
DIMM #                2
    SMBus address        0x52
    Memory type        DDR4
    Module format        UDIMM
    Module Manufacturer(ID)    Corsair (7F7F9E00000000000000000000)
    SDRAM Manufacturer (ID)    Micron Technology (2C000000000000000000000000)
    Size            16384 MBytes
    Max bandwidth        DDR4-2667 (1333 MHz)
    Part number        CMW32GX4M2Z3600C18
    Nominal Voltage        1.20 Volts
    EPP            no
    XMP            yes
    XMP revision        2.0
    AMP            no
JEDEC timings table        CL-tRCD-tRP-tRAS-tRC @ frequency
    JEDEC #1        7.0-7-7-17-24 @ 518 MHz
    JEDEC #2        8.0-8-8-20-28 @ 593 MHz
    JEDEC #3        9.0-9-9-22-31 @ 667 MHz
    JEDEC #4        10.0-10-10-24-34 @ 741 MHz
    JEDEC #5        11.0-11-11-27-38 @ 815 MHz
    JEDEC #6        12.0-12-12-29-41 @ 889 MHz
    JEDEC #7        13.0-13-13-31-45 @ 963 MHz
    JEDEC #8        14.0-14-14-34-48 @ 1037 MHz
    JEDEC #9        15.0-15-15-36-51 @ 1111 MHz
    JEDEC #10        16.0-16-16-39-55 @ 1186 MHz
    JEDEC #11        17.0-17-17-41-58 @ 1260 MHz
    JEDEC #12        18.0-18-18-43-61 @ 1333 MHz
    JEDEC #13        19.0-18-18-43-61 @ 1333 MHz
    JEDEC #14        20.0-18-18-43-61 @ 1333 MHz
    JEDEC #15        21.0-18-18-43-61 @ 1333 MHz
    JEDEC #16        22.0-18-18-43-61 @ 1333 MHz
    JEDEC #17        23.0-18-18-43-61 @ 1333 MHz
    JEDEC #18        24.0-18-18-43-61 @ 1333 MHz
XMP profile            XMP-3596
    Specification        DDR4-3596
    Voltage level        1.350 Volts
    Min Cycle time        0.556 ns (1798 MHz)
    Max CL            18.0
    Min tRP            12.22 ns
    Min tRCD        12.22 ns
    Min tRAS        23.20 ns
    Min tRC            35.57 ns
    Min tRRD        3.89 ns
XMP timings table        CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
    XMP #1            7.0-9-9-17-25-n.a @ 700 MHz (1.350 Volts)
    XMP #2            8.0-10-10-19-29-n.a @ 800 MHz (1.350 Volts)
    XMP #3            9.0-12-12-21-33-n.a @ 900 MHz (1.350 Volts)
    XMP #4            10.0-13-13-24-36-n.a @ 1000 MHz (1.350 Volts)
    XMP #5            11.0-14-14-26-40-n.a @ 1100 MHz (1.350 Volts)
    XMP #6            12.0-15-15-28-43-n.a @ 1200 MHz (1.350 Volts)
    XMP #7            13.0-16-16-31-47-n.a @ 1300 MHz (1.350 Volts)
    XMP #8            14.0-18-18-33-50-n.a @ 1400 MHz (1.350 Volts)
    XMP #9            15.0-19-19-35-54-n.a @ 1500 MHz (1.350 Volts)
    XMP #10            16.0-20-20-38-57-n.a @ 1600 MHz (1.350 Volts)
    XMP #11            17.0-21-21-40-61-n.a @ 1700 MHz (1.350 Volts)
    XMP #12            18.0-22-22-42-64-n.a @ 1798 MHz (1.350 Volts)
    XMP #13            19.0-22-22-42-64-n.a @ 1798 MHz (1.350 Volts)
    XMP #14            20.0-22-22-42-64-n.a @ 1798 MHz (1.350 Volts)
    XMP #15            21.0-22-22-42-64-n.a @ 1798 MHz (1.350 Volts)
    XMP #16            22.0-22-22-42-64-n.a @ 1798 MHz (1.350 Volts)
    XMP #17            23.0-22-22-42-64-n.a @ 1798 MHz (1.350 Volts)
    XMP #18            24.0-22-22-42-64-n.a @ 1798 MHz (1.350 Volts)
Any help is appreciated.
 
Last edited:

tjbalon

Prominent
Aug 25, 2019
15
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520
0
Hey there,

Try setting the ram timings/voltage manually rather the with XMP. You have all you need for that in the table above. If that doesn't work then you might look at RMA'ing them.
I moved from slots 1+3 to 2+4, I am yet to crash so... hopeful. I did notice in the XMP profile via BIOS when I moved slots... in 1+3 it was showing 1.39v, but now in 2+4 it is showing 1.35v for the 3600MHz (same as last night).

This is kinda interesting to me, and wondering if there are any thoughts on why that is?

Going to proceed to stress it and will post results.

Not to mention, found this today via GIGABYTE, to which they state "Install the modules into DDR4_A2, DDR4_B2 for better compatibility."
 
Last edited:
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