Solved

Installing SDRAM Modules with different speeds

Posted on 2004-09-18
8
239 Views
Last Modified: 2011-04-14
My mother have a pentium III PC, it has three DIMM slots, 2 of which has a 128 MB PC133 SDRAM module. I wish to add another 128 MB module to the remaining slot, but the one I have is a PC100. I was wondering if adding it would cause any problems, or will the system simply run with a total of 384 MB at 100MHZ rather than 133MHZ and if so what impact,if any, would that have on the system

Thanks
0
Comment
Question by:a_anis3000
  • 2
  • 2
  • 2
  • +1
8 Comments
 
LVL 9

Accepted Solution

by:
woodendude earned 125 total points
ID: 12091594
It will force the other modules to run at 100MHZ, OTHER THEN THAT IT WILL NOT BE A PROBLEM IF IT'S COMPATIBLE.
0
 

Author Comment

by:a_anis3000
ID: 12092255
How would that impact on the performance as compared to running at 133MHZ?
0
 
LVL 9

Assisted Solution

by:woodendude
woodendude earned 125 total points
ID: 12092283
Though running at a slower speed, you would see an increase but possibly not as much as you may be expecting.
0
 
LVL 12

Expert Comment

by:zvitam
ID: 12093449
It depends if the system originally ran at 133Mhz, or 100Mhz.

If the system runs on 133Mhz, most chances that it will not take the additional 100Mhz Chip (Just beep and will not boot) or it will run, but will not be stable.
I would'nt recommend it.

If the system originally ran on 100Mhz, Then no problem of course.

0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 69

Expert Comment

by:Callandor
ID: 12093981
So, what motherboard and cpu do you have?
0
 

Author Comment

by:a_anis3000
ID: 12096222
I am not quite sure what you mean by " It depends if the system originally ran at 133Mhz, or 100Mhz"  zvitam

If you are asking about the current system ram, it is 256 MB SDRAM 133MHZ (2 x 128 MB modules installed). And I am about to add a 128 MB PC100 SDRAM.

The CPU speed is 700MHZ, and the motherboard has a via chipset, I am not sure how to figure out the Mobo brand and and chipset model though. Anyway I think all I need to know is that the mobo takes PC100 and PC133 SDRAM modules
0
 
LVL 69

Expert Comment

by:Callandor
ID: 12097492
Actually, the cpu is the determining factor here, because the motherboard will try to set the Front Side Bus to match the cpu.  A PIII 700 has a 100 FSB, so you should be ok with PC100 or PC133.  You might need to identify whether your motherboard can handle high-density RAM, because it can be a problem:

RAM Chip density
http://www.stud.fernuni-hagen.de/q3998142/pcchips/howto/sdram.html

high-density RAM problems
http://homepage.hispeed.ch/rscheidegger/ram_bx_faq.html#Q:_Ive_just_bought_some_256MB_high

www.crucial.com has a memory configurator that will identify what memory will work with your motherboard.  To identify your motherboard, you can try Everest: http://www.lavalys.com/products/download.php?pid=1&lang=en&pageid=3
0
 
LVL 12

Expert Comment

by:zvitam
ID: 12097516
if you have 700Mhz CPU the speed is 100Mhz, and you definitly put 100Mhz Memory Chips without any problem provide that the chip are not defected or low quality type.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Backing outlook past files 12 49
HP Z440 RAID 1 64
Random BSOD when using IE or Firefox 4 113
RAM memory configuration for a new Dell 5810 workstation 3 9
Basic computer tune-up with little or no hardware upgrades. Giving an old computer a tune-up usually results in a minimal performance gain, but a gain nonetheless. Several times a week, I’m faced with users at work who ask to make their computers…
Like many organizations, your foray into cloud computing may have started with an ancillary or security service, like email spam and virus protection. For some, the first or second step into the cloud was moving email off-premise. For others, a clou…
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.
Video by: Mark
This lesson goes over how to construct ordered and unordered lists and how to create hyperlinks.

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now