Poor memory bandwith on my Asus KV8 SE Deluxe (3200+ newcasttle)

[Bourch]

I have 2x512 Adata PC4000 on my ASUS K8V SE Deluxe. Currentrly it´s running at 442mhz 2.5-4-3-5 (no PCI/AGP Lock available) and it only gives me about 2700Mb/s on sandra´s mem buffered test.
Is it normal that poor result? I don´t know how to better those results until I change this board with the DFI but here in Spain I´ll have to wait for it.
I know the 3500/3700EB are better but will I be able to get a decent bandwith with this mem on the DFI?

On my old P4-2.8C on the AI7 i865 it gives me around 4800Mb/s without overclock so i think the memory is OK but since I got the 3200+ and the asus I have too poor results.

I know the timings of my mem are a bit slow but 2700mb is TOO slow in my opinion. I sopose that I won´t know if it works better on the DFI lanparty UT until I have it but I don´t understand how a common kingston value ram at 400 scores better on a friends Epox nforce3 250gb at default speeds than mine on an asus (via) at 442mhz. Timings are more relaxed on mine but it´s running at 42mhz more, so it should be compensated.

SiSoftware Sandra

Benchmark Results
RAM Bandwidth Int Buffered iSSE2 : 2781MB/s
RAM Bandwidth Float Buffered iSSE2 : 2782MB/s

Int Buffered iSSE2 (Integer STREAM) Results Breakdown
Assignment : 2748MB/s
Scaling : 2746MB/s
Addition : 2824MB/s
Triad : 2806MB/s
Data Item Size : 16-bytes
Buffering Used : Yes
Offset Displacement Used : Yes
Bandwidth Efficiency : 79% (estimated)

Float Buffered iSSE2 (Float STREAM) Results Breakdown
Assignment : 2747MB/s
Scaling : 2744MB/s
Addition : 2832MB/s
Triad : 2808MB/s
Data Item Size : 16-bytes
Buffering Used : Yes
Offset Displacement Used : Yes
Bandwidth Efficiency : 79% (estimated)

Performance Test Status
Run ID : BOURCH on sábado, 03 de septiembre de 2005 at 14:23:22
Memory Used by Test : 511MB
NUMA Support : No
SMP Test : No
Total Test Threads : 1
SMT Test : No
Dynamic MP/MT Load Balance : No
Processor Affinity : No
Page Size : 4kB
Use Large Memory Pages : No

Chipset 1
Model : ASUSTeK Computer Inc Apollo K8HTB CPU to PCI Bridge
Front Side Bus Speed : 2x 222MHz (444MHz data rate)
In/Out Width : 16-bit / 16-bit
Maximum Bus Bandwidth : 1776MB/s (estimated)

Logical/Chipset 1 Memory Banks

Chipset 2
Model : Advanced Micro Devices (AMD) Athlon 64 / Opteron HyperTransport Technology Configuration
Front Side Bus Speed : 2x 888MHz (1776MHz data rate)
In/Out Width : 16-bit / 16-bit
Maximum Bus Bandwidth : 7104MB/s (estimated)

Logical/Chipset 2 Memory Banks
Bank 0 : 256MB DDR-SDRAM 2.5-4-3-3CL 1CMD
Bank 1 : 256MB DDR-SDRAM 2.5-4-3-3CL 1CMD
Bank 4 : 256MB DDR-SDRAM 2.5-4-3-3CL 1CMD
Bank 5 : 256MB DDR-SDRAM 2.5-4-3-3CL 1CMD
Channels : 1
Bank Interleave : 4-way
Speed : 2x 221MHz (442MHz data rate)
Width : 64-bit
Maximum Memory Bus Bandwidth : 3536MB/s (estimated)

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


What´s wrong with my config?

[ugp]

I dont know man but that is a very look score..

But AMD does like a 1:1 FSB/DDR ratio for the best performance most of the time.

[ugp]

See here is mine at 215 (DDR430) @ 2.5-3-3-7 @ v2.60

[bias_hjorth]

tried enable 1t?

Although I dont know if the option is present on VIA chipsets..

[Bourch]

bias_hjorth, isn´t this 1t ??

Logical/Chipset 2 Memory Banks
Bank 0 : 256MB DDR-SDRAM 2.5-4-3-3CL 1CMD
Bank 1 : 256MB DDR-SDRAM 2.5-4-3-3CL 1CMD
Bank 4 : 256MB DDR-SDRAM 2.5-4-3-3CL 1CMD
Bank 5 : 256MB DDR-SDRAM 2.5-4-3-3CL 1CMD

If it isn´t i´ll try that.


ugp, mine is 221FSB 1:1 ratio. That´s why I am so confused about the poor result

[Bourch]

I thougth the 1CMD = 1T
Bank 0 : 256MB DDR-SDRAM 2.5-4-3-3CL 1CMD
Bank 1 : 256MB DDR-SDRAM 2.5-4-3-3CL 1CMD
Bank 4 : 256MB DDR-SDRAM 2.5-4-3-3CL 1CMD
Bank 5 : 256MB DDR-SDRAM 2.5-4-3-3CL 1CMD

Since bias_hjorth post I've been trying with multiple bios configurations until i´ve tried disabling 2T command that was set to Auto. Now I only have 3100mb/s aprox. Altough that is not a good score, it looks much better

Thank you all

[ugp]

Well I have been able to hit higher then 215...I have done 225 but because of the crappy motherboard I have it doesn't supply enough voltage for the CPU to remain stable...

If you have PC4000 you should be able to run it alot higher then 220 right? It is 250 by default on the bus right?

[Techmasta]

P4= Dual Channel
A64 754= Single Channel

P4>A64 in Sandra.

[ugp]

Yeah it is single channel because the memory controller is onboard with the CPU itself. THe new 939s are going to be Dual Channel as well. And they are going to kick Intels Ass!

[Bourch]

My problem is that i have a via MB that hastn't pci/agp lock, so my SATA raptor doesn't support more than 220 fsb. If I try to go more than 222fsb win dlls get corrupet and I have to reinstall win (I hate reinstalling win). I'm waiting for the DFI. Then I'll be able to push the AMD and the memory modules at least 250

[Bungo]

It really looks like some 2t bandwiddt with those numbers...
Make sure u got 1t... else i got no clue what it could be~.

[Bourch]

Yes, on #6 I posted that I had 2T enabled and that I went from 2700 to 3100 mb/s disabling it. Now the only thing I hate is the AGP / PCI limitation. I can only continue waiting for the arrive of the the nforce3 DFI. But it'll take some weeks until we can order it here in Spain :'(