Tweet
Hi there!
I am fighting a really strange memory related problem for quite some time now and I think I really need your help. So I am running on a RIVEBE with 4930K, using a G.Skill 8x8GB Memory Kit with the model number F3-17000CL11Q2-64GBZLD. This machine dual boots OS X 10.11 and Win 8.1, so yes its a so called "hackintosh".
Now my problem is that I am having Kernel Panics (in OS X), almost always "type 14=page fault" errors. The strange thing is that these most of the time happen only at shutdown / restart (but sometimes also "out of nowhere") and they only happen when I did sleep before. I wasn't able to replicate this in Win though, and also a longer MemTest86 session (about 8 passes in >20 hours) did not reveal any error.
What was also strange that the problem (almost) went away when I took out 4 out of the 8 DIMMS. And apparently it did not matter which ones, because after swapping these, the problem still wasn't present! Went with 64GB again - and the panics immediatly returned.
So the question is: what is it? RAM? The IMC? Software? And how can I find out? I already upped VCORE and / or VCCSA, and also upped DIMM voltage a bit to 1.55V but all that did not help. Downclocking RAM to just 800MHz did also not improve the situation.
Now, whats also strange - at least to me - are some BIOS readings. I saw that some DIMM specific values are not the same across all 4 channels, namely tRWDR, tRWDD, tRWSR and DRAM IOL, these were different between Channels A/C and B/D. Plus I see only three readings of "DRAM CKE minimum pulse width" and not four as I expected.
Some sign of a problem, or are these values to be expected? Ah and I changed the board as well, going from RIVE to RIVEBE so I am pretty sure the mobo is not the culprit as the symptoms are exactly the same. Plus running at stock settings now, so no OC.
Any help is greatly appreciated!
I am fighting a really strange memory related problem for quite some time now and I think I really need your help. So I am running on a RIVEBE with 4930K, using a G.Skill 8x8GB Memory Kit with the model number F3-17000CL11Q2-64GBZLD. This machine dual boots OS X 10.11 and Win 8.1, so yes its a so called "hackintosh".
Now my problem is that I am having Kernel Panics (in OS X), almost always "type 14=page fault" errors. The strange thing is that these most of the time happen only at shutdown / restart (but sometimes also "out of nowhere") and they only happen when I did sleep before. I wasn't able to replicate this in Win though, and also a longer MemTest86 session (about 8 passes in >20 hours) did not reveal any error.
What was also strange that the problem (almost) went away when I took out 4 out of the 8 DIMMS. And apparently it did not matter which ones, because after swapping these, the problem still wasn't present! Went with 64GB again - and the panics immediatly returned.
So the question is: what is it? RAM? The IMC? Software? And how can I find out? I already upped VCORE and / or VCCSA, and also upped DIMM voltage a bit to 1.55V but all that did not help. Downclocking RAM to just 800MHz did also not improve the situation.
Now, whats also strange - at least to me - are some BIOS readings. I saw that some DIMM specific values are not the same across all 4 channels, namely tRWDR, tRWDD, tRWSR and DRAM IOL, these were different between Channels A/C and B/D. Plus I see only three readings of "DRAM CKE minimum pulse width" and not four as I expected.
Some sign of a problem, or are these values to be expected? Ah and I changed the board as well, going from RIVE to RIVEBE so I am pretty sure the mobo is not the culprit as the symptoms are exactly the same. Plus running at stock settings now, so no OC.
Any help is greatly appreciated!
Comment