Yes, it was Cool and Quiet.Originally posted by: ajmiles
EDIT: Or, make sure you have Cool and Quiet turned off. If this is enabled your processor will drop from 2.0/2.2/2.4 GHz to 1.0, probably being the cause of your half bandwidth. So disable that first, then default the bios settings after you've checked.
Now it's reporting this data:
SiSoftware Sandra
Benchmark Results
RAM Bandwidth Int Buff'd iSSE2 : 4824 MB/s
RAM Bandwidth Float Buff'd iSSE2 : 4827 MB/s
Int Buff'd iSSE2 (Integer STREAM) Results Breakdown
Assignment : 4683MB/s
Scaling : 4662MB/s
Addition : 4968MB/s
Triad : 4985MB/s
Data Item Size : 16 byte(s)
Buffering Used : Yes
Offset Displacement Used : Yes
Bandwidth Efficiency : 75% (estimated)
Float Buff'd iSSE2 (Float STREAM) Results Breakdown
Assignment : 4679MB/s
Scaling : 4664MB/s
Addition : 4977MB/s
Triad : 4989MB/s
Data Item Size : 16 byte(s)
Buffering Used : Yes
Offset Displacement Used : Yes
Bandwidth Efficiency : 75% (estimated)
Performance Test Status
Run ID : LASHER on martedì 25 gennaio 2005 at 16.42.03
Memory Used by Test : 512MB
NUMA Support : No
SMP Test : No
Total Test Threads : 1
SMT Test : No
Dynamic MP/MT Load Balance : No
Processor Affinity : P0
Page Size : 4kB
Use Large Memory Pages : No
Chipset 1
Model : Advanced Micro Devices (AMD) Athlon 64 / Opteron HyperTransport Technology Configuration
Front Side Bus Speed : 2x 1005MHz (2010MHz data rate)
In/Out Width : 16-bit / 16-bit
Maximum Bus Bandwidth : 8040MB/s (estimated)
Logical/Chipset 1 Memory Banks
Bank 0 : 512MB DDR-SDRAM 2.0-2-2-2CL 2CMD
Bank 1 : 512MB DDR-SDRAM 2.0-2-2-2CL 2CMD
Bank 2 : 512MB DDR-SDRAM 2.0-2-2-2CL 2CMD
Bank 3 : 512MB DDR-SDRAM 2.0-2-2-2CL 2CMD
Channels : 1
Bank Interleave : 4-way
Speed : 2x 201MHz (402MHz data rate)
Width : 128-bit
Maximum Memory Bus Bandwidth : 6432MB/s (estimated)
The overall performance hasn't change though. And what baffles me is the fact that it states Channels: 1. While CPU-Z reports my 2 gigabytes of RAM as Channels #: Dual.
Is Sandra wrong? Is that Channels entry for a whole different thing? Are my results so bad for non OC memory with those timings in Dual Channel?