Performance hit? single channel vs dual

ozzaman

ozzaman

ozzaman

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23 Oct 2006
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As above, it seems my DS4 refuses to work with dual channel ram, so can anybody tell me the performance hit i will be suffering with single channel over dual? Will i notice it in gaming?
 
The performance hit is pretty small, and you shouldn't notice it in gaming.
 
ok sorry for asking this but have you got the memory in the correct slots? 1 and 3? (then 2 and 4) The channels are colour coded
 
mame said:
ok sorry for asking this but have you got the memory in the correct slots? 1 and 3? (then 2 and 4) The channels are colour coded
Click to expand...

Lol yeah. My DS4 wont boot with any sort of overclock, with two sticks no matter what i do. One stick in any slot is fine, but two sticks in dual it wont boot, and goes into a reset cycle.

So now i run 2gb in single channel next to each other in slots 1/2.
 
My computer goes in reset cycles when I have four sticks in dual channel. It can cope with two, but not four. Is there nothing you can do to stop it?
 
Ive been reading up on it for the last week or so and the responses to this problem vary.

Some say you should up the MCH voltage in the bios and this helps the overclock stick.

Some people suggest that you have to up the ram voltages, because the DS4 generally reports the voltages higher than they actually are (im not 100% on this though).

Disabling legacy usb in the bios too apparently is supposed to fix this.
These are all problems to do with the boot cycle/ram though, and since i havent come across a solution yet it seems there isnt one.
 
Can't say I'd want to run in single channel myself...

Tho changing from some 533MHz CAS5 value sticks to running somt 1066MHz CAS4 performance memory I only saw a 5% difference in performance in 3D Marks 06 and most ingame benchmarks (dual channel) so dropping back to single channel isn't going to be the end of the world - maybe 15% performance hit - unless you play games like COD4 that swap quite a lot of texture and model data in and out of VRAM <> physical RAM while playing which is gonna feel that weaker memory bandwidth...
 
Well i just realised i had been running in single channel mode (i had 2x2gb gskill pc800) in slots 1 and 3(yellow), was wondering why when it boot it said single channel(duh). putting them in 2 and 4(yellow) seemed to work... have you flashed to f2?
 
Ive got the F11 bios for the DS4. I know how to run in dual, its just that the gigabyte is being weird so it wont run it. Must be a clash with the xms. The big sticky says it prefers C5 over C4 and i have C4 ram.
 
I seem to remember when I tested this in Fear, I got a 5-10% drop in framerate between dual and single channel and next to no difference between 1T and 2T.
 
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