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Author Topic: WU Frame times -- Single Channel VS Dual Channel Ram  (Read 433 times)
Pudge
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« on: February 28, 2005, 03:45:23 PM »

WU Frame times -- Single Channel VS Dual Channel Ram
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Pudge
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« Reply #1 on: February 28, 2005, 03:45:23 PM »

I am thinking about purchasing another Mother Board for folding.  I was going through the log files for my four Bartons and noticed something.  I was looking at the amount of time to run one frame on a p1134_RIBO_FSpeptide_EXT protein on all four computers.  

Asus A7N8X Deluxe # Nforce 2 chipset #### 3000+ # 333 Mhz Dual Channel Ram # 35 min avg
MSI K7N2GM2-LSR # Nforce 2 chipset #### 3000+ # 400 Mhz Dual Channel Ram # 36 min avg
Shuttle MN31N ##### Nforce 2 chipset #### 2800+ # 333 Mhz Dual Channel Ram # 37 min avg
ASRock K7S41GX ## SIS 741 GX chipset # 2800+ # 333 Mhz Single Channel Ram # 44 min avg

The three Nforce 2 chipsets with Dual Channel Ram all ran pretty close together, but the SIS 741 GX with single channel Ram was considerably slower.  Is Dual Channel Ram THAT much better for folding, or am I missing something.  Everything else seems to be fairly comperable.

I was going to buy another ASRock, but that's about 7 minutes more per frame, times 100 frames is 700 minutes longer (about 11 1/2 hours) to do a p1134_RIBO_FSpeptide_EXT.  Has anyone else noticed anything like this?

I think I'll spring for 16 bucks more and get another MSI.

Pudge


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TOMMY123
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« Reply #2 on: February 28, 2005, 08:51:01 PM »

I think the difference largely depends on the lowly Sis chipset compare to the Nforce 2
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Pith
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« Reply #3 on: March 01, 2005, 05:08:37 PM »

Are the Barton's all the same?

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Pudge
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« Reply #4 on: March 01, 2005, 06:20:05 PM »

quote:

Originally posted by: Pudge
MoBo________________Chip set_________Speed___FSB and mem mode__________Avg Time
Asus A7N8X Deluxe __ Nforce 2 chipset___3000+__ 333 Mhz Dual Channel Ram____35 min avg
MSI K7N2GM2-LSR___Nforce 2 chipset___3000+___400 Mhz Dual Channel Ram____36 min avg
Shuttle MN31N_______Nforce 2 chipset___2800+___333 Mhz Dual Channel Ram____37 min avg
ASRock K7S41GX____SIS 741 GX chipset_2800+__333 Mhz Single Channel Ram___44 min avg


Two are AMD ATHLON XP (Barton Core) 3000+  -- one with 333 MHZ Front Side Bus one 400 MHZ FSB
Two are AMD ATHLON XP (Barton Core) 2800+ -- both 333 MHZ FSB as that's the only way 2800+ come

I revised the Quote above to point out the different columns.  Be aware that the forum will not take multiple spaces, so it is hard to make charts, etc.  Hence the _ for spacing.

The big thing is, the Shuttle and the ASRock have identical Processors, but the Shuttle has Nforce2 chipset with Dual channel ram, the ASRock has SIS chipset with Single channel Ram, and the ASRock takes 7 minutes longer than the Shuttle to do one frame in a p1134_RIBO_FSpeptide_EXT protien.  That's 18% longer.  The one big glaring difference is Dual channel Ram VS Single channel Ram.  I know Dual channel Ram is supposed to be faster, but I was surprised at 18% faster.

And BTW, it is because of YOU that I am buying another Mother Board.  Got to keep up with the Jones', or in this case, the Pithes.  Thank Goodness my dedicated folders are all running Linux.  That's $100 plus I'm not spending on Operating Systems.  I've been reading Mark Foster's thread, and ShineySteve's thread, and I am thinking about trying to set up one Linux box as a server, and all the other dedicated folders would be diskless and headless and boot from the server.  Cuts down on hard drive costs, monitor & keyboard costs, and uses less power.  Each dedicated folder would then be a MoBo, CPU, CPU heat sink/fan, RAM, and a power supply.

Pudge

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Zeus
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« Reply #5 on: March 01, 2005, 06:44:15 PM »

I did some tests a while back and running with two sticks of mem in dual mode and one stick of mem in single mode had very little effect on the Frame times if any!

Also when I got my first 2500Barton the new mem PC3200 arrived later than the rest off the goods so I ran it out of syn with PC2100 mem but the CPU at 2200MHz and when the PC3200mem came thare wasnt a massive differance in the frame times but the new mem ran at 2 2 2 5 which was faster than the PC2100 mem

most off the fold take place close to the CPU core so the mem hasnt that much affect on the frame rates but the mem timmings do affect the frame rates but I cant remmember how much so some of the differancs may be due to the different mem timmings in the different systems.

Raw CPU speed is the most important (are your systems overclocked?)

Try taking out a stick of ram and/or swapping some sticks around if they have different timmings!
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Pudge
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« Reply #6 on: March 01, 2005, 06:53:22 PM »

quote:

Originally posted by: Zeus
I did some tests a while back and running with two sticks of mem in dual mode and one stick of mem in single mode had very little effect on the Frame times if any!

Also when I got my first 2500Barton the new mem PC3200 arrived later than the rest off the goods so I ran it out of syn with PC2100 mem but the CPU at 2200MHz and when the PC3200mem came thare wasnt a massive differance in the frame times but the new mem ran at 2 2 2 5 which was faster than the PC2100 mem

most off the fold take place close to the CPU core so the mem hasnt that much affect on the frame rates but the mem timmings do affect the frame rates but I cant remmember how much so some of the differancs may be due to the different mem timmings in the different systems.

Raw CPU speed is the most important (are your systems overclocked?)

Try taking out a stick of ram and/or swapping some sticks around if they have different timmings!


No, none of the systems are overclocked.  So, if Dual mode isn't much faster than single mode, you would think the ASRock should be right up there with the other systems.  If it isn't the single channel memory, then I really can't figure out the difference.  

Maybe TOMMY123 is right and it's mainly the way the SIS chipset does things.

Pudge
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newfiedesertdog
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« Reply #7 on: March 01, 2005, 10:17:12 PM »

Zeus is right.
Raw proc speed and large on die L2 cache equals the lowest frame times.
SIS chipsets, particularly for AMD, are less than optimal.
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Pith
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« Reply #8 on: March 01, 2005, 11:30:14 PM »

quote:

And BTW, it is because of YOU that I am buying another Mother Board. Got to keep up with the Jones', or in this case, the Pithes.


Pudge and Pith racing neck and neck into the top 30....Hope this little competition does break the bank, already had to sell one of my best bulls to keep you from catching me

On a more serious note, I started folding shortly after my Dad died from cancer. Guess I felt like it was the only thing tangible that I could do to help. I really appreciate you and everyone in here for the effort. The competition is just a bonus.....Oh, and I learned the importance of building a much more stable pc
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Pudge
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Posts: 706

Join Date: Nov, 2002


« Reply #9 on: March 02, 2005, 02:44:46 AM »

quote:

Originally posted by: Pith
quote:

And BTW, it is because of YOU that I am buying another Mother Board. Got to keep up with the Jones', or in this case, the Pithes.


Pudge and Pith racing neck and neck into the top 30....Hope this little competition does break the bank, already had to sell one of my best bulls to keep you from catching me


What do you mean "keep you from catching me"?  I've caught and passed you several times in the last week.  Then you pass me.  We've been playing leap frog the last week or so.  Don't take this personal, but I get nervous when I play leap frog with another guy.  I got to get another machine going so I can pull away from you.  Leave you in the dust.  See ya later.  Hasta La Vista, baby.

Pudge

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