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Windows 7: What would be affordable 32gb memory capacity desktop models?

27 May 2013   #11
Lady Fitzgerald

Win 7 Ultimate 64 bit
 
 

Quote   Quote: Originally Posted by LMiller7 View Post
The output voltage of a power supply is determined by it's design. The output current is determined entirely by the load. This does not require any intelligence in the power supply, just basic ohms law. The formula is I=V/R.
I=current
V=voltage
R=resistance (the load)

With no load the current drain will be zero. Due to some small overhead the the input current to the power supply will be non-zero but quite small. Modern supplies are quite good at keeping this low. The current rating is just that, a maximum rating.

I did electronics service for a living for some 30 years so I know something about these things.
I worked 32 years for an electric/irrigation utility. While most of that time was in warehousing (my colorblindness kept me out of any apprenticeship programs), I didn't waste my time not learning anything.


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27 May 2013   #12
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

I believe the OP's question was related to; will having 32 gigs of ram most not be used increase the power usage of a computer. Meaning will the electric bill be larger because of having 32 gigs of ram installed. My answer is still no.
It's also my understanding that a proper working power supply will only give a appliance, (computer) the power that is requested by the appliance.
When you have a 500W power supply it indicates that (if) 500W is requested it has the ability to answer the request but only if requested by the appliance. If your appliance request 200W from a 500W power supply the power supply will only give the appliance the 200W requested. Your power supply will only get the power it demands from the wall socket no more.
This is my 2x2=4 supply and demand on a power supply.
If one wants more information their are volumes of books that would fill a large room with all kinds of information and charts, graphs, and formulas on the subject.

The computer specs and what the computer is going to be used for would be nice to know.
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27 May 2013   #13
Lady Fitzgerald

Win 7 Ultimate 64 bit
 
 

Quote   Quote: Originally Posted by Layback Bear View Post
I believe the OP's question was related to; will having 32 gigs of ram most not be used increase the power usage of a computer. Meaning will the electrict bill be larger because of having 32 gigs of ram installed. My answer is still no.
I pretty much agree. If (a huge if) all 32GB of RAM is being used 24/7 (again, extremely unlikely), there would be a small increase on the power bill. But, if one can afford 32GB of RAM, they can easily afford the increase on the power bill (turning off a light or two will offset even that). Just having that much RAM installed but using only a small percentage of it (say 25%) will use only a hair more power than just having 25% RAM installed.

To use 32GB of RAM even intermittently, you would need to be working the snot out of your PC simultaneously running multiple RAM intensive operations, such as video editing, folding, bit coin mining, and/or ripping BDs. Even running VMs won't necessarily tap out that much RAM, depending how busy the VM was.
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27 May 2013   #14
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

If I had 32GBs of RAM, I would use 28GBs of that for a RAMdisk and install the OS on that. The remaining 4GBs is ample for running it.
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27 May 2013   #15
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

Lady that is why I requested the system specs and the use of this computer.
If one did all the things you listed over a long period of time the price of computing would go up by a little. Like you stated just turning off some lights in rooms your not using could balance that out.

That is a great idea whs.
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27 May 2013   #16
LMiller7

Windows 7 Pro 64 bit
 
 

If RAM is installed it will consume power. RAM that is unused according to the memory graph will either be on the standby list (containing data that hasn't been accessed recently) or free (containing zeros). The point is it contains data. How this data is used or not used is irrelevant to power consumption. How much that will be depends on it's type.
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27 May 2013   #17
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

Very true LMiller7 but will the unused ram in what ever state it's in raise the electric bill? I think not enough to worry about. Without lab equipment you probable couldn't measure the difference.
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27 May 2013   #18
LMiller7

Windows 7 Pro 64 bit
 
 

There really is no such thing as unused memory. It all contains some kind of data. The OS makes a distinction based on the nature of the data and what applications or portion of the OS is interested in it's contents. But from a hardware and power consumption viewpoint all memory is used and those distinctions are meaningless.
My System SpecsSystem Spec
27 May 2013   #19
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Quote   Quote: Originally Posted by LMiller7 View Post
There really is no such thing as unused memory. It all contains some kind of data. The OS makes a distinction based on the nature of the data and what applications or portion of the OS is interested in it's contents. But from a hardware and power consumption viewpoint all memory is used and those distinctions are meaningless.
That is not a correct statement. There are 5 categories of RAM usage (see pic) and most of the RAM is usually free which is completely unused RAM (especially on systems with a lot of RAM). The second largest chunk is often 'standby' which is cached programs or data. But cached RAM is also available RAM and will be used when needed.


Attached Thumbnails
What would be affordable 32gb memory capacity desktop models?-2013-05-28_0126.png  
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27 May 2013   #20
LMiller7

Windows 7 Pro 64 bit
 
 

I am very well aware of Hardware Reserved, InUse, Modified, Standby and Free memory and what they mean.

I wasn't speaking of unused memory as understood by the OS at all. What I meant by "There really is no such thing as unused memory" is that it contains something, even if that something is just zeros.
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 What would be affordable 32gb memory capacity desktop models?




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