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18

I really want my motherboard to support 65TiB of RAM :(
– Flimzy
Commented Jul 8, 2011 at 22:54
+1 for mentioning that address lines are different from a processor's architecture. On that note, it would be easier for a memory extension on a 32-bit processor to just "double up" and go to a full 64-bit (requiring double the space for pointers). Great answer.
– Breakthrough
Commented Jul 9, 2011 at 0:58
1

I want my entire PC on one chip, completely solid state, only ports to connect external devices and a power cord. I only hope I live long enough to see it.
– Moab
Commented Jul 9, 2011 at 2:44
6

@Moab: Already exists. It's called System-on-a-chip. Some even run desktop OSes like Linux. (OK, most use some external chips, e.g. RAM, but they're close)...
– sleske
Commented Jul 21, 2011 at 11:09
3

Don't forget that each memory slot has a limited number of memory address lines going to it as well. This means that each slot will have its own maximum. Nearly always each slots' maximum is the same as the others. The only exception to that rule I've seen was a motherboard that could use DDR2 and DDR3 memory (but not at the same time). So you may have a system with 4 slots that supports up to 8GB of RAM, but no slot can take more than a 2GB stick as each slot is only given 31 address lines plus some system to activate that particular slot. Bits 32-33 just control which RAM stick is active.
– BeowulfNode42
Commented Aug 16, 2014 at 7:19

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Correct minor typos or mistakes
Clarify meaning without changing it
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Always respect the author’s intent
Don’t use edits to reply to the author

create code fences with backticks ` or tildes ~
```
like so
```
add language identifier to highlight code
```python
def function(foo):
print(foo)
```
put returns between paragraphs
for linebreak add 2 spaces at end
_italic_ or **bold**
indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
to make links (use https whenever possible)
<https://example.com>
[example](https://example.com)
<a href="https://example.com">example</a>

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