Hey All,
I am experiencing some weird XMP issues when updating system BIOS's.
System Spec:
MB: ASUS ROG Strix X99 Gaming ATX
CPU: Intel i7 6850K
RAM: G.Skill Trident Z - F4-3200C16Q-32GTZKW
When using BIOS release 0801 or below the motherboard work correctly, as do the XMP profiles. However, when upgrading to the latest version which at the time of writing this post is 1201 and then also down grading to 1101 and 1003 the same problem is still present.
I have used the MEMOK feature on the MB which confirmed everything is good. I have even run memtest86 which runs without error.
When observing the post codes on the MB it seems to get stuck on a 'bd' post code, which I can see from looking around on the internet seems to be released to the System Agent voltage.
What I have noticed with the BIOS changes is a reduction in these voltages on the CPU System Agent Voltage, DRAM Voltage (I suspect that this one is due to the XMP not working correctly) and the VCCIO CPU 1.05V Voltage.
Under BIOS 0801 can I can see these values which are automatically set the following:
CPU System Agent Voltage: 1.200V
VCCIO CPU 1.05V Voltage: 1.240V
and under the later BIOS these values are much lower.
The only way I can get the board to boot with these later BIOS is to disable XMP and run the AI Overclock Tuner in Auto or Manual and then change the DRAM to DDR4-2800MHz or below and then everything is fine.
I have raised a RMA with ASUS now but I am yet to have a reply.
Has anyone come across this problem before and has could pin point it? As any help, would be greatly appreciated. I have taken screen shots from the BIOS should it aid in T-Shooting.
As I assume it’s down to a possible faulty MB or weak memory controller on the CPU.
I am experiencing some weird XMP issues when updating system BIOS's.
System Spec:
MB: ASUS ROG Strix X99 Gaming ATX
CPU: Intel i7 6850K
RAM: G.Skill Trident Z - F4-3200C16Q-32GTZKW
When using BIOS release 0801 or below the motherboard work correctly, as do the XMP profiles. However, when upgrading to the latest version which at the time of writing this post is 1201 and then also down grading to 1101 and 1003 the same problem is still present.
I have used the MEMOK feature on the MB which confirmed everything is good. I have even run memtest86 which runs without error.
When observing the post codes on the MB it seems to get stuck on a 'bd' post code, which I can see from looking around on the internet seems to be released to the System Agent voltage.
What I have noticed with the BIOS changes is a reduction in these voltages on the CPU System Agent Voltage, DRAM Voltage (I suspect that this one is due to the XMP not working correctly) and the VCCIO CPU 1.05V Voltage.
Under BIOS 0801 can I can see these values which are automatically set the following:
CPU System Agent Voltage: 1.200V
VCCIO CPU 1.05V Voltage: 1.240V
and under the later BIOS these values are much lower.
The only way I can get the board to boot with these later BIOS is to disable XMP and run the AI Overclock Tuner in Auto or Manual and then change the DRAM to DDR4-2800MHz or below and then everything is fine.
I have raised a RMA with ASUS now but I am yet to have a reply.
Has anyone come across this problem before and has could pin point it? As any help, would be greatly appreciated. I have taken screen shots from the BIOS should it aid in T-Shooting.
As I assume it’s down to a possible faulty MB or weak memory controller on the CPU.
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