PCG-FR495EP Slow Memory Problem

[Daki]

Hello

I am an owner a new Vaio FR495 notebook. My problem is that my Vaio have poor memory performance. I check this with Sisoftware Sandra. There is a result


Benchmark Results
RAM Bandwidth Int Buff'd iSSE2 : 918MB/s
RAM Bandwidth Float Buff'd iSSE2 : 1046MB/s

Int Buff'd iSSE2 (Integer STREAM) Results Breakdown
Assignment : 976MB/s
Scaling : 972MB/s
Addition : 864MB/s
Triad : 863MB/s
Data Item Size : 16-bytes
Buffering Used : Yes
Offset Displacement Used : Yes
Bandwidth Efficiency : 29% (estimated)

Float Buff'd iSSE2 (Float STREAM) Results Breakdown
Assignment : 1041MB/s
Scaling : 1051MB/s
Addition : 1049MB/s
Triad : 1044MB/s
Data Item Size : 16-bytes
Buffering Used : Yes
Offset Displacement Used : Yes
Bandwidth Efficiency : 33% (estimated)

Performance Test Status
Run ID : SONYVAIO on Tuesday, July 06, 2004 at 9:58:06 AM
Memory Used by Test : 224MB
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 : ATI Technologies RS200 CPU to PCI Bridge
Front Side Bus Speed : 4x 100MHz (400MHz data rate)
Width : 64-bit
Maximum Bus Bandwidth : 3200MB/s (estimated)


Performance Tips
Warning 5400 : Low bandwidth efficiency (advanced). Check memory timings and settings.
Tip 2 : Double-click tip or press Enter while a tip is selected for more information about the tip.


It seems that memory work on 33 MHz In the real world; the whole system is slow like old Pentium III computer. CPU and HD performance is OK How can I fix that?

Thanks in advice

[JoeB.]

hi,

i have a GRT816M and i also have terrible memory performance....
if i would get as much performance as i do heat from the processor, then my notebook would be real fast...

does your memory get real hot aswell... tough the bottom of your notebook after you had it running for a while and see how warm or hot it got....

Joe

[kee-lo_]

I think all VAIOs have that Joe, and thats probably why the memory doesn't run as well as expected.

[JoeB.]

hey kee,

sorry for spreading a paranoidish environment... a lot of notebooks heat up... specially the so called desktop replacement notebooks.

question kee-lo: the standard ram used for vaios is ddr 266 cycled... do you have any info on performance if changed to ddr 333 or even 400 cycled ram...


Joe

[kee-lo_]

I have no idea, it would be a case of doing a test at your own peril.