Getting Unusual Memory Scores with my new Rig -- Suggestions

[thatsright]

Could Someone Offer any Suggestions Here?

I am running my IC7-non-g; Kingston HyperX PC3500 512MB X 2 in Dual Channel; manual settings in BIOS with timings of 2-3-2-5 & ULTRA Performance setting; a P4c 2.4Ghz at Stock Speed with N/B Strap option to PSB800. CPU is run with HT enabled. In XP Pro with SP1a, I run Sandra Memory Bandwidth Benchmark and the highest # I got was 4686MB?s. But now I consistently get around 4630. I have the 1.13 IC7 Bios.

I?m kind of surprised/disappointed with such memory scores. I was expecting higher, or is this the norm for this Memory and stock CPU speed? I do plan on O?Cing my system this weekend, but haven?t done so yet. I hear of some people getting up to or around 5900MB Sandra Scores with their rigs, but would I only get these numbers with a higher CPU speed? Or do I need Memory timings like 2-2-2-5 to get #?s like this?

And since I?m a bit new to O?Cing as well, if I?m only getting around 4630 average now, If I O?C will that # go down as when I change the FSB divider for O?Cing?

Thanks

 

[WarCon]

What is your fsb and memory ratio? The actual speed you run your memory at will determine the bandwidth it has. (Who has 5900?)

 

[thatsright]

The FSB/MEM Ratio in the Bios (as it is now, before any O'Cing) is the default of 1:1

 

[WarCon]

Then your scores are probably right on for your rig.

 

[thatsright]

Well I'm not sure now If I should be bummed out or not. I heard folks getting around 5000 for Mem scores for this Board. Do you know, if when I O'C my system and then I have to set the FSB divider to the 5:4 position, will the Sandra MEM scores go up or down usually?

Thanks

P.S. I think also before I start to O'C I might try out the IC7 Beta Bios 1.14 and see if that makes any diffrence. We'll see.......

 

[gramboh]

I'll post my scores when I got home, but I got somewhere around 5800 when I OC'd my P4 2.6 C to ~270 FSB with a 5:4 divider for DDR 434 @ 2-3-3-7 (2 x 512 Corsair XMS 3500C2). At stock with 2-3-3-6 DDR 400 (can't run tighter timings for some odd reason) I believe it was around 5000 but not below. I think you should be getting higher scores for sure.

Note: System was not stable at 270 (~3525MHz) but I was able to run SiSoft Sandra to see how much memory bandwidth was there (it would crash with Prime95 x 2 and specperf)

 

[thatsright]

Well an update for anyone who may be interested:

On sunday I discoverd that the second 512MB DIMM of Kingston Hyper X PC3500 is defective. I ran Memtest-86 all day to isolate the problem to just this module and make 100% sure it wasn't my Motherboard. Perhaps this could be why I have been getting lower than I had hoped for Sandra Mem scores when running my IC7 in dual Channel mode?

Anyone have a opinion on this.

Do you think getting a Failing address/Failing Bit in a DDR Stick would affect a Sandra Mem score?

 

[Ronin]

Sandra Benchmarks

This is my score with a similar rig, so yours is in line (dual channel PC3200 Corsair).