Question P6X58D-E 1600MHz XMP profile won't boot

[philipp.arv]

So, i have a Xeon x5670 @ 4.3GHz and 3x8GB of the Corsair CML8GX3M1A1600C10 in tripple channel configuration and when i tried enabling the XMP profile inside the bios. It wont even post after that so i cleared my cmos and got my settings back to my OC setting. The Ram should work at 1600Mhz without a problem because it's their spec. I tried with stock clocks turned the vcore/qpi and dram voltages up but nothing happend. At the moment i am running a manual overclock of 4.3GHz on the cpu and 1400-ish MHz Ram. I know the 200 MHz bumb is nothing but i just wonder why it wouldnt work. I've tried adjusting the timings myself and the voltages. I also red in the motherboard manual "Due to Intel spec definition, X.M.P. DIMMs and DDR3-1600 are supported for one DIMM per channel only." Maybe im missing something here.

Ty for any suggestions

 

[Aeacus]

Pull out the middle RAM DIMM, leaving only 2x sticks of RAM in the system and look if you can get them running at 1600 Mhz. If you do, the issue is with you using 3x RAM sticks.

Honestly, I don't ever recommend that you HAVE three modules installed anyhow. Using memory in pairs is always a better option so that normal dual channel operation will occur. And that's another thing. When it comes to memory there are no "single channel" or "dual channel" memory modules. There are ONLY memory modules and the motherboard and CPU architecture will determine whether or not dual, triple or quad channel operation is possible based on the architecture and how many modules are in use. Occasionally though there are situations where it might make sense to run three modules and some boards CAN use three modules in a FLEX type mode where two of the modules will operate in dual channel while the third oddball module will run in single channel. I'd avoid oddball configurations though if possible because many motherboards will simply run ALL modules in single channel mode when an odd number of modules are installed.

Source and further reading under the "The odd man out, or, unmatched memory" section,
link: https://forums.tomshardware.com/faq...ocp-memory-profiles-work-in-progress.3398926/

 

[philipp.arv]

Pull out the middle RAM DIMM, leaving only 2x sticks of RAM in the system and look if you can get them running at 1600 Mhz. If you do, the issue is with you using 3x RAM sticks.


Source and further reading under the "The odd man out, or, unmatched memory" section,
link: https://forums.tomshardware.com/faq...ocp-memory-profiles-work-in-progress.3398926/

Ok, i will try that and report back.

 

[philipp.arv]

So funny enough, i decided to change the oc settings completly and instead of pushing the multiplicator i pushed the baseclock further up to 195 instead of 180 and lowered the multiplicator to 22 instead of 24 and see there i got the rough 1600MHz memory on stock timings without xmp profile and it runs perfect without any crash right at the frist boot. it kinda fixed it but it still doens't explain to me why xmp won't work. If somebody knows why it behaves like that feel free to let me know. But for now it "fixed" my "problem" and i didn't lose any performance.