I am trying to find out if there is much difference in power consumption and performance between single and double ranked SODIMM RAM strips? Not to be confused with double "channel" RAM.
Will battery life using double rank ram decrease compared to single rank?
Is there much performance loss using double rank ram compared to single rank?
I am aware. looking for deeper understanding with actual figures in terms of volts and amps.
Why? Get out your equipment and measure it yourself.
Calm down cowboy I was just asking if anyone knew
@brendanm: I'm setting up an off-grid 12v DC system and going through every device, component to maximize efficiency and save power on the battery bank. I'm kinda obsessed so every bit counts. I am measuring but any additional info I can find helps to fill the gaps. there are so many variables that affect it and I'm probably missing a few.
@happirt: 12v is an inefficient voltage to use. Going to 24 or 48v would make a bigger difference than changing the type of ram your computer uses. DDR3 or 4 ram probably uses 2 watts.
@brendanm: so is it ddr3 or ddr4?
2w at peak, idle or average?
I'll let you get on with what ever you were doing…
@happirt: You are chasing stupid problems, I'm trying to make you aware of something much more beneficial.
@happirt: Haha ok. You are running a system big enough that you are running a computer. 12v is therefore a silly choice. But sure, if you like running much larger cables, breakers etc than necessary, and losing efficiency due to cable resistance and the higher current necessary using 12v, go for your life. Just remember to get the ram that uses 1.95 watts instead of 2.
Haha ok.
got to love when people ask questions, someone with actual knowledge on the technology or implementation point out issues with their question, and then they complain about the answer
as you said, no-one does a decent off-grid system for significant load like desktop pc's and then runs it at 12v :/
You'll lose more power in dc cable loses than you would the difference between two random ram sticks
(plus if you're spec'ing up a PC its irrelvant, your PSU efficiency and CPU power will be huge compared to ram power usage)
@SBOB: this thread is about SODIMM . SODIMM is for laptops, why are you bring up desktops? great technology knowledge you have there you must be such a credible person for reliable information (eye roll)
you don't even know how long my cables are or what type of cables im using…
CPU and psu power actually depends on usage. again, you talking in idle, load or average?
your answers are too superficial rookie elementary information
@happirt: whoosh……….thats the point you missed
anyway have fun trying to run an off grid system on DC 12V.
4.2 vs 4.19
nice find thanks
I think it is negligible in a broader context.
I use combination of 1 and 2 ranked DIMM in my PC
Why would you do that?
Many recommend you don't mix up ram slots with different specs/configuration.
Hehe that is how I collected 16GB from used parts :D it will just work with lowest common bus speed and common timing values, I still remember how I used such a combination with 6 SIMM.
Whatever works for you mate
You're referring to RAM sticks with the chips soldered onto each side of the silicon??
No, there will be no measurable difference.
Remember, RAM depends on continuous power to keep its state, so the more bytes of RAM then the more power you'll use (irrespective of actually utilising it in programs/gaming etc). BUT again, this will be an imperceptibly small increase in power.
The single biggest power drain for any portable device - mobile/tablet/laptop/whatever - is the screen, by an order of magnitude. You'll save more power than the RAM would ever use by turning the brightness down by 10%, or turning your screen off earlier.