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Windows 7: learn hardware

04 Jul 2013   #21
TwoCables

 

Quote   Quote: Originally Posted by Skylais View Post
Quote   Quote: Originally Posted by TwoCables View Post
Skylais: are you looking for simple answers in layman's terms (or "plain English"), or are you looking for all of the specifics and details and whatnot? I mean, should we keep it simple like I'm trying to do, or are you looking for more than that?
Hmm well i'm not extremely dumb, like i get whats inside of it but i don't get the details. Really. Like i'm unsure what bus speeds and all those things are, and things like ddr3vgddr5. Double data rate or something, and what exactly is a ram stick? Like what inside of it allows it to hold a memory, and those types of finer details but explained in basic. Like when i tried looking up something i got all these floating point numbers and crazy things i didn't understand.
I think all you need to do is, when you have a question about something, come here and ask and one of us will know the answer.

GDDR is memory is memory that you'll only find on video cards. DDR is computer memory, and you're right: it stands for Double Data Rate. So, DDR3-1600 memory has an actual clock speed of 800 MHz with a multiplier of 2 (double data rate) which makes it 1600. It's very similar to the bus speed of a CPU: the bus speed is QDR, or Quad Data Rate. So if you have a CPU that has a Front Side Bus speed of 1333 MHz, then its bus speed is 333 MHz. The CPU's multiplier multiplies the 333 to make its actual clock speed. For example, a CPU with a FSB of 1333 and a multiplier of 10 would result in 3.33 GHz because 10 x 333 is 3,330 (3,330 MHz).

To apply that to modern CPUs like Intel's latest CPUs, there is no Front Side Bus. They use a BCLK (Base Clock) which is also the PCI-E frequency, and it is at 100.00 MHz and it is not QDR or anything. Instead, now the CPU's multiplier does everything. So for 3.3 GHz, a multiplier of 33 is used. Intel simplified it! For that, I am grateful because it made it very easy to overclock my i5-2500K to 4.7 GHz by just increasing the multiplier to 47 and increasing the core voltage in order to provide it the power that it needs. Fortunately, it really was just as simple as that for my CPU and motherboard (well, I had to do all of the recommended testing in order to make sure my system is stable, but still).


My System SpecsSystem Spec
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09 Jul 2013   #22
Skylais

Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

okay thanks guys, i was wondering. do most of our computers have dynamic or static ram?
As well whats the difference between dimm and simm? and what would most computers have.
And so static memory is like cache memory which is used by the cpu? their interactions together are called bus cycles.
And i was just wondering about a previous post, what if u changed out parts with the computer plugged in? wouldnt it be grounded then?
My System SpecsSystem Spec
09 Jul 2013   #23
Faladu

Windows 7 Ultimate Retail Box (64-bit installed) + Service Pack 1
 
 

I am CompTIA A+ certified now, and I would recommend the A+ 220-801/802 study guide (1500 pages+ book)

Amazon.com: CompTIA A+ Certification All-in-One Exam Guide, 8th Edition (Exams 220-801 & 220-802) (9780071795128): Michael Meyers: Books

and/or this book:

Upgrading and Repairing PCs (21st Edition): Scott Mueller: 9780789750006: Amazon.com: Books

Otherwise search for the specifics.

DIMM = Dual In-line Memory Module
SIMM = Single In-line Memory Module

Dynamic is changeable like RAM = Random Access Memory, not ROM = static or Read Only Memory.

Systems have both still today, you buy RAM, but there is still plenty of static purposely hard-coded stuff on motherboards.
My System SpecsSystem Spec
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09 Jul 2013   #24
TwoCables

 

Quote   Quote: Originally Posted by Skylais View Post
okay thanks guys, i was wondering. do most of our computers have dynamic or static ram?
I haven't heard these terms before, but based on the names, I'd guess that the memory sticks are dynamic memory since their contents are constantly changing.


Quote   Quote: Originally Posted by Skylais View Post
As well whats the difference between dimm and simm? and what would most computers have.
All modern computers have DIMMs. Here are some pages that have brief definitions (I found these by Googling "define simm" and "define dimm"):

What is SIMM (single in-line memory module)? - Definition from WhatIs.com

SIMM (Single In-Line Memory Module) Definition

What is SIMM? - A Word Definition From the Webopedia Computer Dictionary

What is SIMM (Single In-line Memory Module)?

https://en.wikipedia.org/wiki/SIMM

What is DIMM? - A Word Definition From the Webopedia Computer Dictionary

RAMpedia - define-DIMM

https://en.wikipedia.org/wiki/DIMM

More can be linked of course, but I figure that this is probably more than enough.


Quote   Quote: Originally Posted by Skylais View Post
And so static memory is like cache memory which is used by the cpu?
It sounds to me like you're right:

HowStuffWorks "What is the difference between static RAM and dynamic RAM?"


Quote   Quote: Originally Posted by Skylais View Post
their interactions together are called bus cycles.
I'm not sure.


Quote   Quote: Originally Posted by Skylais View Post
And i was just wondering about a previous post, what if u changed out parts with the computer plugged in? wouldnt it be grounded then?
Yep, but the PSU's power switch must be in the Off position (the 0 as opposed to the 1. See here: https://en.wikipedia.org/wiki/Power_symbol). Not only that, but the outlet has to be a properly grounded outlet as well.
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