Go Back  DVD Talk Forum > General Discussions > Tech Talk
Reload this Page >

Question about DDR Ram

Tech Talk Discuss PC Hardware, Software, Internet and Other Technology

Question about DDR Ram

Old 10-25-04, 11:55 PM
  #1  
DVD Talk Ultimate Edition
Thread Starter
 
ivelostr2's Avatar
 
Join Date: Feb 2001
Location: pittsburgh
Posts: 4,881
Likes: 0
Received 0 Likes on 0 Posts
Question about DDR Ram

I need to get some RAM for my CPU. I checked and it is DDR that I need, but when I went to buy it, the guy at Best Buy (I know, they are always wrong that is why I am asking here) told me that I needed to know the speed of the RAM in my CPU inorder to get the right type of RAM. I don't know how to find this out. I just said OK, because I have a friend I usually ask about tech stuff, but he had never heard about different RAM speed either. I figured I would ask here, because you guys know everything.

So how do I find out what the speed of my RAM is so I can buy more of the same type?
Old 10-26-04, 12:02 AM
  #2  
X
Administrator
 
X's Avatar
 
Join Date: Oct 1987
Location: AA-
Posts: 10,763
Likes: 0
Received 4 Likes on 3 Posts
Look at the speed of the RAM you already have installed. Or look in the manual. Or tell us what your motherboard is.
Old 10-26-04, 12:09 AM
  #3  
DVD Talk Ultimate Edition
Thread Starter
 
ivelostr2's Avatar
 
Join Date: Feb 2001
Location: pittsburgh
Posts: 4,881
Likes: 0
Received 0 Likes on 0 Posts
the mother board is an ABIT IS7 series. I am looking in the manual now...
Old 10-26-04, 12:10 AM
  #4  
X
Administrator
 
X's Avatar
 
Join Date: Oct 1987
Location: AA-
Posts: 10,763
Likes: 0
Received 4 Likes on 3 Posts
It's capable of using PC3200 RAM.
Old 10-26-04, 12:13 AM
  #5  
DVD Talk Ultimate Edition
Thread Starter
 
ivelostr2's Avatar
 
Join Date: Feb 2001
Location: pittsburgh
Posts: 4,881
Likes: 0
Received 0 Likes on 0 Posts
thank you...
Old 10-26-04, 12:17 AM
  #6  
X
Administrator
 
X's Avatar
 
Join Date: Oct 1987
Location: AA-
Posts: 10,763
Likes: 0
Received 4 Likes on 3 Posts
Of course that doesn't address the timings of the PC3200 RAM...

If you are adding RAM I'd try to make sure what I bought didn't have slower timings than what was already in there. To do that you'd have to read the settings in your BIOS or look up your existing RAM.
Old 10-26-04, 11:51 AM
  #7  
DVD Talk Special Edition
 
Join Date: Jan 2001
Location: New York, N.Y.
Posts: 1,710
Likes: 0
Received 0 Likes on 0 Posts
actually, it's not the speed of the motherboard.
That tells you the maximum buspeed that the motherboard can take. You need to look at the buspeed of your CPU.
You will need to look at the documentation that came with your computer and don't get the CPU bus speed confused with the CPU processor speed.
Old 10-26-04, 12:13 PM
  #8  
X
Administrator
 
X's Avatar
 
Join Date: Oct 1987
Location: AA-
Posts: 10,763
Likes: 0
Received 4 Likes on 3 Posts
Depends on how you look at it.

If you want to buy a faster CPU or overclock you'll be limited by the maximum speed your motherboard accepts. And if your original RAM is too slow you'll either be limited by its speed or you'll have to replace it.
Old 10-26-04, 12:17 PM
  #9  
DVD Talk Ultimate Edition
Thread Starter
 
ivelostr2's Avatar
 
Join Date: Feb 2001
Location: pittsburgh
Posts: 4,881
Likes: 0
Received 0 Likes on 0 Posts
OK, I found the manual where it states the specification. The board is an IS7-E.
this is what it says...



1. CPU
Supports Intel Pentium 4 SOcket 478 processor with 800MHz, 5333 MHz, and 400MHz (for northwood only) System Data Bus.
2. CHipset
Intel 82865PE (MCH)
Supports Hi-speed Universal Serial Bus
3. Memory
Supports 2 DIMM Single Dual channel DDR 400/300/266 (MAx 4GB). (IS7/IS7-E/IS7-M/IS7-E2).

I really have no clue what most of this means, does this help? If you need more info let me know and I will post it.

Nick

Last edited by ivelostr2; 10-26-04 at 12:21 PM.
Old 10-26-04, 12:20 PM
  #10  
DVD Talk Ultimate Edition
Thread Starter
 
ivelostr2's Avatar
 
Join Date: Feb 2001
Location: pittsburgh
Posts: 4,881
Likes: 0
Received 0 Likes on 0 Posts
will it say on the RAM that is already in my CPU what its speed is?

Last edited by ivelostr2; 10-26-04 at 12:22 PM.
Old 10-26-04, 12:31 PM
  #11  
X
Administrator
 
X's Avatar
 
Join Date: Oct 1987
Location: AA-
Posts: 10,763
Likes: 0
Received 4 Likes on 3 Posts
Originally posted by ivelostr2
will it say on the RAM that is already in my CPU what its speed is?
One way or another. It will either say "PC2700", "PC3200", etc. or "DDR 400", "DDR 333", etc. or you'll have to look at the chips and find the "-x" where "x" is a number that signifies the RAM chip speed. A manufacturer name and model number on a label is also good.

Generally you can put in faster RAM than what exists too. So it's worthwhile to get faster RAM that you can use in the future if it costs just a bit more. If it doesn't work Best Buy should take it back.
Old 10-26-04, 12:37 PM
  #12  
DVD Talk Ultimate Edition
Thread Starter
 
ivelostr2's Avatar
 
Join Date: Feb 2001
Location: pittsburgh
Posts: 4,881
Likes: 0
Received 0 Likes on 0 Posts
thank you ...
Old 10-26-04, 12:56 PM
  #13  
X
Administrator
 
X's Avatar
 
Join Date: Oct 1987
Location: AA-
Posts: 10,763
Likes: 0
Received 4 Likes on 3 Posts
Be very careful when handling the RAM. You want to be grounded to the computer before you touch it and make sure you don't hit it with any static electricity like walking across a rug while you're holding it and then touching something with it.
Old 10-26-04, 12:58 PM
  #14  
DVD Talk Gold Edition
 
Join Date: Jun 2000
Location: QC, CA
Posts: 2,718
Likes: 0
Received 0 Likes on 0 Posts
http://www.cpuid.com/download/cpu-z-124.zip

CPU-z

It'll give you all the info you need, and then some.
Old 10-26-04, 12:58 PM
  #15  
DVD Talk Ultimate Edition
Thread Starter
 
ivelostr2's Avatar
 
Join Date: Feb 2001
Location: pittsburgh
Posts: 4,881
Likes: 0
Received 0 Likes on 0 Posts
ok, this is what it says...

P32M648HHC-5B
256MB PC3200 DDR
0415 MAAA N38905

SPECTEK TH 0415
S80032VMCTW-58

32X64 DDR 400
Old 10-26-04, 01:34 PM
  #16  
X
Administrator
 
X's Avatar
 
Join Date: Oct 1987
Location: AA-
Posts: 10,763
Likes: 0
Received 4 Likes on 3 Posts
PC3200 RAM. I believe Best Buy also carries the Spectek brand.
Old 10-27-04, 05:30 PM
  #17  
DVD Talk Ultimate Edition
Thread Starter
 
ivelostr2's Avatar
 
Join Date: Feb 2001
Location: pittsburgh
Posts: 4,881
Likes: 0
Received 0 Likes on 0 Posts
I went to BB today, because they had some ram on sale with rebates. I had 2 different packs in my hand, one with 2 256 chips and one with 1 512 chip. They 2 256 chip one was cheaper, so I asked the guy there if there was any difference. He said the 2 256 chip ones would be better if my CPU was "hyper threaded," but the 1 512 would be better if it wan't . I didn't know what this meant, I have 3 open memory slots, and the 2 256 were cheaper so I went ahead and bought them. I assume that is OK, but I figured I would go ahead and ask you guys here before I opened and installed them. What is hyper threaded?
Old 10-27-04, 05:38 PM
  #18  
DVD Talk Gold Edition
 
aintnosin's Avatar
 
Join Date: Jun 2003
Location: Orange County, CA
Posts: 2,897
Likes: 0
Received 0 Likes on 0 Posts
Originally posted by ivelostr2
What is hyper threaded?
Most new Intel Pentium IV CPU's are "hyper threaded" meaning that they actually have two channels that act somewhat like dual CPU's.

It really has more to do with your motherboard though. The two 256s would work better if your mobo is dual channel.
Old 10-27-04, 06:58 PM
  #19  
X
Administrator
 
X's Avatar
 
Join Date: Oct 1987
Location: AA-
Posts: 10,763
Likes: 0
Received 4 Likes on 3 Posts
If you think the most you'll ever need is 1GB you could get the 2 256s now and get another 256 in the future and run all your memory in dual channel which would give you a little more speed. If you're going to need more than 1GB eventually you probably should go with the 512.
Old 10-28-04, 01:33 PM
  #20  
DVD Talk Special Edition
 
Join Date: Jan 2001
Location: New York, N.Y.
Posts: 1,710
Likes: 0
Received 0 Likes on 0 Posts
dual channel has nothing to do with hyperthreading.
hyperthreading allows your cpu to switch between tasks more quickly.
dual channel allows your cpu to load 2 banks of memory concurrently - making it quicker when the cpu needs to load memory.
Old 10-29-04, 02:36 AM
  #21  
DVD Talk Platinum Edition
 
Join Date: Dec 1999
Location: Berlin
Posts: 3,824
Likes: 0
Received 0 Likes on 0 Posts
What if I use a Athlon XP 2200+ 226FSB
and I get a 512 MB DDR 3200 400
Will these two work flawlessly?

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.