@William Gaatjes
I tried @ 2993mhz 1.2 Volts during a coffee break:
Intel(R) Memory Latency Checker - v3.5
Measuring idle latencies (in ns)...
Memory node
Socket 0
0 78.2
Measuring Peak Injection Memory Bandwidths for the system
Bandwidths are in MB/sec (1 MB/sec = 1,000,000 Bytes/sec)
Using all the threads from each core if Hyper-threading is enabled
Using traffic with the following read-write ratios
ALL Reads : 44483.2
3:1 Reads-Writes : 39604.9
2:1 Reads-Writes : 39024.1
1:1 Reads-Writes : 31747.7
Stream-triad like: 40309.1
Measuring Memory Bandwidths between nodes within system
Bandwidths are in MB/sec (1 MB/sec = 1,000,000 Bytes/sec)
Using all the threads from each core if Hyper-threading is enabled
Using Read-only traffic type
Memory node
Socket 0
0 44481.0
Measuring Loaded Latencies for the system
Using all the threads from each core if Hyper-threading is enabled
Using Read-only traffic type
Inject Latency Bandwidth
Delay (ns) MB/sec
==========================
00000 140.93 43953.4
00002 140.67 43947.9
00008 136.85 43946.5
00015 134.93 43932.5
00050 112.99 43618.8
00100 97.10 34081.1
00200 91.18 20350.6
00300 88.92 14623.5
00400 87.22 11488.1
00500 86.25 9505.8
00700 84.67 7152.2
01000 83.78 5313.6
01300 83.02 4303.2
01700 82.58 3495.5
02500 82.11 2642.6
03500 81.64 2121.0
05000 80.00 1739.1
09000 79.75 1325.8
20000 79.67 1039.2
Measuring cache-to-cache transfer latency (in ns)...
Using small pages for allocating buffers
Local Socket L2->L2 HIT latency 21.0
Local Socket L2->L2 HITM latency 32.5
Geardown mode enabled
Timings:
16-18-18-18-36-54
4-6-24-0-0-4-11-11
0-3-3-420-16-12-6-3
I'm sure this could be tweaked further as I've just punched some numbers into the BIOS.
In your case, I'd start by lowering the primary timings to 16-16-16-16-32-48 and lowering the tRFC to 260ns (381?) before trying anything else.
Hope this helps and with kind regards,
stAbb