Will my memory configuration work with XMP 2.0?
Will my memory configuration work with XMP 2.0?
Hello,
I've recently bought what I had originally thought were a matching pair of RAM sticks to my current ones. (You'll see the hardware revision differences in a moment.)
What my current dilemma is, with XMP enabled, I cannot POST after installing the new RAM. It will POST after replacing the old ones, or just using the old ones, but not all together.
My question is if this can be configured any way to run the XMP profile with all 4 sticks of 8GB RAM? Is it even worth trying to overclock a little with XMP? See specs below:
Z170 PRO GAMING/AURA
Intel® Core™ i7-6700K CPU @ 4.00GHz
NVIDIA GeForce RTX 2080 SUPER
SMBIOS Version 3.0
DMI BIOS
vendor American Megatrends Inc.
version 3805
date 05/16/2018
ROM size 16384 KB
(Now the RAM)
DIMM # 1
SMBus address 0x50
Memory type DDR4
Module format UDIMM
Module Manufacturer(ID) G.Skill (7F7F7F7FCD0000000000000000)
SDRAM Manufacturer (ID) SK Hynix (AD000000000000000000000000)
Size 8192 MBytes
Max bandwidth DDR4-2132 (1066 MHz)
Part number F4-2400C15-8GVR
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 10.0-10-10-24-34 @ 727 MHz
JEDEC #2 11.0-11-11-27-38 @ 800 MHz
JEDEC #3 12.0-12-12-29-41 @ 872 MHz
JEDEC #4 13.0-14-14-32-45 @ 945 MHz
JEDEC #5 14.0-14-14-34-48 @ 1018 MHz
JEDEC #6 15.0-15-15-36-50 @ 1066 MHz
JEDEC #7 16.0-15-15-36-50 @ 1066 MHz
XMP profile XMP-2400
Specification DDR4-2400
Voltage level 1.200 Volts
Min Cycle time 0.833 ns (1200 MHz)
Max CL 15.0
Min tRP 12.26 ns
Min tRCD 12.26 ns
Min tRAS 29.10 ns
Min tRC 41.60 ns
Min tRRD 3.50 ns
XMP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
XMP #1 15.0-15-15-35-50-n.a @ 1200 MHz (1.200 Volts)
DIMM # 2
SMBus address 0x51
Memory type DDR4
Module format UDIMM
Module Manufacturer(ID) G.Skill (7F7F7F7FCD0000000000000000)
SDRAM Manufacturer (ID) SpecTek Incorporated (7F7FB500000000000000000000)
Size 8192 MBytes
Max bandwidth DDR4-2132 (1066 MHz)
Part number F4-2400C15-8GVR
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 9.0-9-9-22-31 @ 666 MHz
JEDEC #2 11.0-11-11-27-38 @ 814 MHz
JEDEC #3 12.0-12-12-29-42 @ 888 MHz
JEDEC #4 13.0-13-13-31-45 @ 962 MHz
JEDEC #5 14.0-14-14-34-49 @ 1037 MHz
JEDEC #6 15.0-15-15-35-50 @ 1066 MHz
JEDEC #7 16.0-15-15-35-50 @ 1066 MHz
JEDEC #8 18.0-15-15-35-50 @ 1066 MHz
JEDEC #9 19.0-15-15-35-50 @ 1066 MHz
XMP profile XMP-2400
Specification DDR4-2400
Voltage level 1.200 Volts
Min Cycle time 0.833 ns (1200 MHz)
Max CL 15.0
Min tRP 12.26 ns
Min tRCD 12.26 ns
Min tRAS 29.10 ns
Min tRC 41.60 ns
Min tRRD 3.17 ns
XMP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
XMP #1 15.0-15-15-35-50-n.a @ 1200 MHz (1.200 Volts)
DIMM # 3
SMBus address 0x52
Memory type DDR4
Module format UDIMM
Module Manufacturer(ID) G.Skill (7F7F7F7FCD0000000000000000)
SDRAM Manufacturer (ID) SK Hynix (AD000000000000000000000000)
Size 8192 MBytes
Max bandwidth DDR4-2132 (1066 MHz)
Part number F4-2400C15-8GVR
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 10.0-10-10-24-34 @ 727 MHz
JEDEC #2 11.0-11-11-27-38 @ 800 MHz
JEDEC #3 12.0-12-12-29-41 @ 872 MHz
JEDEC #4 13.0-14-14-32-45 @ 945 MHz
JEDEC #5 14.0-14-14-34-48 @ 1018 MHz
JEDEC #6 15.0-15-15-36-50 @ 1066 MHz
JEDEC #7 16.0-15-15-36-50 @ 1066 MHz
XMP profile XMP-2400
Specification DDR4-2400
Voltage level 1.200 Volts
Min Cycle time 0.833 ns (1200 MHz)
Max CL 15.0
Min tRP 12.26 ns
Min tRCD 12.26 ns
Min tRAS 29.10 ns
Min tRC 41.60 ns
Min tRRD 3.50 ns
XMP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
XMP #1 15.0-15-15-35-50-n.a @ 1200 MHz (1.200 Volts)
DIMM # 4
SMBus address 0x53
Memory type DDR4
Module format UDIMM
Module Manufacturer(ID) G.Skill (7F7F7F7FCD0000000000000000)
SDRAM Manufacturer (ID) SpecTek Incorporated (7F7FB500000000000000000000)
Size 8192 MBytes
Max bandwidth DDR4-2132 (1066 MHz)
Part number F4-2400C15-8GVR
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 9.0-9-9-22-31 @ 666 MHz
JEDEC #2 11.0-11-11-27-38 @ 814 MHz
JEDEC #3 12.0-12-12-29-42 @ 888 MHz
JEDEC #4 13.0-13-13-31-45 @ 962 MHz
JEDEC #5 14.0-14-14-34-49 @ 1037 MHz
JEDEC #6 15.0-15-15-35-50 @ 1066 MHz
JEDEC #7 16.0-15-15-35-50 @ 1066 MHz
JEDEC #8 18.0-15-15-35-50 @ 1066 MHz
JEDEC #9 19.0-15-15-35-50 @ 1066 MHz
XMP profile XMP-2400
Specification DDR4-2400
Voltage level 1.200 Volts
Min Cycle time 0.833 ns (1200 MHz)
Max CL 15.0
Min tRP 12.26 ns
Min tRCD 12.26 ns
Min tRAS 29.10 ns
Min tRC 41.60 ns
Min tRRD 3.17 ns
XMP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
XMP #1 15.0-15-15-35-50-n.a @ 1200 MHz (1.200 Volts)
Any help greatly appreciated!
-Nate
The chance of purchasing multiple kits appears to be outdated or mismatched, lacking a single common JEDEC profile with identical timings. This likely explains why booting with all four units isn't possible. Have you reset the CMOS before installing all four? Another approach is to begin with older sticks, activate XPM, power down, insert new ones, avoid resetting the CMOS, and then attempt to start. It could be effective since XMP profiles are compatible, though it's uncertain if this will succeed.
The chance of purchasing multiple kits appears to be outdated or mismatched, lacking a single common JEDEC profile with identical timings. This likely explains why booting with all four units isn't possible. Did you clear the CMOS before installing all four? Another approach is to begin with older sticks, turn on XPM, power down, insert new ones, avoid resetting the CMOS, and then attempt to start. This method might succeed since XMP profiles are compatible, though it's uncertain.
I believe the only thing I haven't done is reset the CMOS by taking out the battery, unplugging it from the wall, and holding the power button to discharge everything. I can attempt this and provide an update. Regarding that suggestion, technically it's precisely what I did when purchasing the sticks. I was already using old RAM modules with XMP enabled, and adding these two new ones caused the problem.