Help. Lost 10% bandwidth efficiency.

[dobbz]

yesterday i was at 260 2-2-2-11 at 3.5v. last night i Primed at 3.6v, was stable, but now my bandwidth efficiency is down from 97% to 88%. i put the voltage and FSB back and its still the same.

this shot is at 250 2-2-2-11. notice my last bench at 250 with 2.5-2-2-2-11. its over 100Mbps higher. i think i broke me RAM. anything i can do?

 

[Evil Result]

If you relax your ram timings you can try for a higher FSB, and see if that gets your bandwidth back.

Mabey something was running in the background to cause a hit on effiency.

 

[strikerP4]

This is what I got but I have an intel system. You may have just had something on your system causing your perf hit. Try some other bench marking programs and see if you get lower scores with other benchies too.


SiSoftware Sandra

Int Buffered iSSE2 (Integer STREAM) Results Breakdown
Assignment : 4713MB/s
Scaling : 4717MB/s
Addition : 4974MB/s
Triad : 4966MB/s
Data Item Size : 16-bytes
Buffering Used : Yes
Offset Displacement Used : Yes
Bandwidth Efficiency : 151% (estimated)

Float Buffered iSSE2 (Float STREAM) Results Breakdown
Assignment : 4719MB/s
Scaling : 4715MB/s
Addition : 4979MB/s
Triad : 4971MB/s
Data Item Size : 16-bytes
Buffering Used : Yes
Offset Displacement Used : Yes
Bandwidth Efficiency : 151% (estimated)

Test Status
Memory Used by Test : 512MB
NUMA Support : No
SMP Test : No
Total Test Threads : 1
SMT Test : Yes
Number of Test SMT (per CPU) : 2
Dynamic MP/MT Load Balance : No
Processor Affinity : No

Chipset 1
Model : Abit Computer Corp 82875P Memory Controller Hub
Front Side Bus Speed : 4x 200MHz (800MHz data rate)
Width : 64-bit
Maximum Bus Bandwidth : 6400MB/s (estimated)

Logical/Chipset 1 Memory Banks
Speed : 2x 200MHz (400MHz data rate)
Width : 64-bit
Maximum Memory Bus Bandwidth : 3200MB/s (estimated)

Features
MMX Technology : Yes
SSE Technology : Yes
SSE2 Technology : Yes
SSE3 Technology : No
HTT - Hyper-Threading Technology : Yes