ram extension

[pascal_bidouille]

HI,

I got it to work at 2000 !
I had to disable XMP then manually set FSB at 167 and cpu multiplicator to 17.
I took latency from the XMP values.
Result :

Core Speed 2839.9 MHz
Multiplier x 17.0
Bus Speed 167.0 MHz
Rated Bus Speed 3006.9 MHz

Type DDR3
Size 8192 MBytes
Channels # Dual
DRAM Frequency 1002.3 MHz
CAS# Latency (CL) 9 clocks
RAS# to CAS# Delay (tRCD) 10 clocks
RAS# Precharge (tRP) 9 clocks
Cycle Time (tRAS) 26 clocks
Command Rate (CR) 2T

I did put 1.6V (cannot select 1.65) but it worked also vith 1.5V

I tried to go further with FSB = 175 to get memory to 21xx but this failed and I had to restet CMOS to get control back ..

I will thus stay with this 2000 config a few days to check if that's really stable.

One thing strange, is that CPUz give me a different result :

Core Speed 2839.8 MHz
Multiplier x FSB 21.0 x 135.2 MHz
Memory Frequency 811.4 MHz (2:12)
CAS# latency (CL) 9.0
RAS# to CAS# delay (tRCD) 10
RAS# Precharge (tRP) 9
Cycle Time (tRAS) 26
Row Refresh Cycle Time (tRFC) 160
Command Rate (CR) 2T

I don't understand why this result is different....

[GSKILL TECH]

Do you have memory benchmark test? Use that to see what the effective frequency is.

Do you have the latest CPU-Z?

Thank you
GSKILL TECH

[pascal_bidouille]

Do you have any suggestion about memory benchmark tool ?

[pascal_bidouille]

CPU-Z is lastest.

I used today MaxxMem which show 2004 MHz
Benchmark result are :
Memory copy 16093 Mb/s
Memory Read : 14220 Mb/s
Memory write : 12431 Mb/s
Latency 52.6 ns

I did a few other benchmaks lso just to load a bit the system. I seems stable for now.

[Tradesman]

Can run MaxMemm (Free) to actually benchmark the performance for read, write, copy