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  #1 (permalink)  
Old 12-30-2006, 07:33 AM
CharlesBlackstone
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Default Will PC2100 RAM slow down computer that takes PC2700?

Hi, I want to give my friend's son a gig of ram I took out of my Dell
Lattitude D800 laptop, for his Dell Inspiron 8600. He currently only
has half a gig. His machine takes newer PC2700 ram whereas mine is
PC2100 ram. How much will PC2100 ram slow his machine?

Thanks much...


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  #2 (permalink)  
Old 12-30-2006, 08:56 AM
Rod Speed
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Default Re: Will PC2100 RAM slow down computer that takes PC2700?

CharlesBlackstone <charlesblackstone1@hotmail.com> wrote:

> Hi, I want to give my friend's son a gig of ram I took out of my Dell
> Lattitude D800 laptop, for his Dell Inspiron 8600. He currently only
> has half a gig. His machine takes newer PC2700 ram whereas mine
> is PC2100 ram. How much will PC2100 ram slow his machine?


Basically the mathematical ratio, 22%




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  #3 (permalink)  
Old 12-30-2006, 03:07 PM
Mike Walsh
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Default Re: Will PC2100 RAM slow down computer that takes PC2700?


If his PC is designed for PC2700 RAM i.e. the bus is running at 333 Mhz, the PC2100 RAM will not work. If the bus is running at 266 Mhz the PC2100 RAM will work. You could change the bus speed from 333 Mhz to 266 Mhz to get the memory to work, but that would also slow down the processor.

CharlesBlackstone wrote:
>
> Hi, I want to give my friend's son a gig of ram I took out of my Dell
> Lattitude D800 laptop, for his Dell Inspiron 8600. He currently only
> has half a gig. His machine takes newer PC2700 ram whereas mine is
> PC2100 ram. How much will PC2100 ram slow his machine?
>
> Thanks much...


--
Mike Walsh
West Palm Beach, Florida, U.S.A.

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  #4 (permalink)  
Old 12-30-2006, 03:08 PM
paulmd@efn.org
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Default Re: Will PC2100 RAM slow down computer that takes PC2700?


CharlesBlackstone wrote:
> Hi, I want to give my friend's son a gig of ram I took out of my Dell
> Lattitude D800 laptop, for his Dell Inspiron 8600. He currently only
> has half a gig. His machine takes newer PC2700 ram whereas mine is
> PC2100 ram. How much will PC2100 ram slow his machine?
>
> Thanks much...


Because of potential instablilty problems (not so much speed), go with
the specified ram, or faster.

You will likely get away with the slower Ram.... but no promises here.


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  #5 (permalink)  
Old 12-30-2006, 09:41 PM
Sleepy
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Default Re: Will PC2100 RAM slow down computer that takes PC2700?


"CharlesBlackstone" <charlesblackstone1@hotmail.com> wrote in message
news:1167467586.667378.116470@48g2000cwx.googlegro ups.com...
> Hi, I want to give my friend's son a gig of ram I took out of my Dell
> Lattitude D800 laptop, for his Dell Inspiron 8600. He currently only
> has half a gig. His machine takes newer PC2700 ram whereas mine is
> PC2100 ram. How much will PC2100 ram slow his machine?
>
> Thanks much...
>


The boost he will get from having 1.5gb of RAM will more than compensate the
small drop in RAM speed. Use CPU-Z to check the RAM timings of all 3 sticks
and make sure the bios settings are set appropiately.



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  #6 (permalink)  
Old 12-31-2006, 12:56 AM
Vanguard
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Default Re: Will PC2100 RAM slow down computer that takes PC2700?

"CharlesBlackstone" <charlesblackstone1@hotmail.com> wrote in message
news:1167467586.667378.116470@48g2000cwx.googlegro ups.com...
> Hi, I want to give my friend's son a gig of ram I took out of my Dell
> Lattitude D800 laptop, for his Dell Inspiron 8600. He currently only
> has half a gig. His machine takes newer PC2700 ram whereas mine is
> PC2100 ram. How much will PC2100 ram slow his machine?
>
> Thanks much...
>



Questioned cannot be answered. Why? Because you haven't a clue (or
didn't provide *us* with one) as to WHAT you intend to replace. Just
because his "machine" can support PC-2700 doesn't mean that is what is
installed. Also, you haven't mentioned how much free memory is
available versus how much pagefile (virtual memory) is consumed to know
if the increase in RAM would allow more programs to remain in memory
rather than get paged out to the far slower hard drive.

Since you aren't going to use the RAM anyway, what's the problem in just
giving it to the boy and letting him figure out if it helps him or not?
First check with only your old memory in the boy's computer. Check for
responsiveness after the install. Then see if the boy can reuse his old
modules with yours. If so, great. If not, he'll still have more than
before which means more programs (or more of each program) can be in
faster memory instead of the pagefile. Just go do it and test if it got
better.


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  #7 (permalink)  
Old 12-31-2006, 06:24 PM
Vanguard
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Posts: n/a
Default Re: Will PC2100 RAM slow down computer that takes PC2700?

"Joel" <Joel@NoSpam.com> wrote in message
news:4tjep2dqp4ajp9edghm6qkv8p4dtf5mutb@4ax.com...
> "Vanguard" <vanguard.news@yahooNIX.com> wrote:
>
>> "CharlesBlackstone" <charlesblackstone1@hotmail.com> wrote in message
>> news:1167467586.667378.116470@48g2000cwx.googlegro ups.com...
>> > Hi, I want to give my friend's son a gig of ram I took out of my
>> > Dell
>> > Lattitude D800 laptop, for his Dell Inspiron 8600. He currently
>> > only
>> > has half a gig. His machine takes newer PC2700 ram whereas mine is
>> > PC2100 ram. How much will PC2100 ram slow his machine?
>> >
>> > Thanks much...
>> >

>>
>>
>> Questioned cannot be answered. Why? Because you haven't a clue (or
>> didn't provide *us* with one) as to WHAT you intend to replace. Just
>> because his "machine" can support PC-2700 doesn't mean that is what
>> is
>> installed. Also, you haven't mentioned how much free memory is
>> available versus how much pagefile (virtual memory) is consumed to
>> know
>> if the increase in RAM would allow more programs to remain in memory
>> rather than get paged out to the far slower hard drive.
>>
>> Since you aren't going to use the RAM anyway, what's the problem in
>> just
>> giving it to the boy and letting him figure out if it helps him or
>> not?
>> First check with only your old memory in the boy's computer. Check
>> for
>> responsiveness after the install. Then see if the boy can reuse his
>> old
>> modules with yours. If so, great. If not, he'll still have more
>> than
>> before which means more programs (or more of each program) can be in
>> faster memory instead of the pagefile. Just go do it and test if it
>> got
>> better.

>
> Hahaha the man is giving away, but wanna make sure that the boy's
> system
> will benefit from extra RAM not slowing down or causing problem.



And so what if the donated memory slows down the boy's computer? There
will still be the original RAM to returned to. RAM doesn't
self-destruct when removed; otherwise, the donating adult couldn't even
contemplate giving to the boy. It's very possible slower memory will
make the boy's computer run faster. I replaced my CAS-2.5 512MB (2
sticks) with CAS-3 2GB (2 sticks) and my system is a hell of lot
speedier just because more of the programs are in memory than residing
in the slower pagefile.

Some folks will claim that you don't need more memory if you see free
physical memory is still available in Task Manager's Processes panel.
The argument goes that if you have free memory then you don't need more
since you old stuff hasn't been fully consumed yet. They neglect to
mention that the next program may want more than what is currently free.
They also neglect to add the VM column (virtual memory) to see how much
TOTAL memory the program(s) actually consumes. Programs will ask for a
certain amount of memory that they would like to have along with a
minimum amount that they must have. If they can't get their max, more
of their code goes into VM. A program may show up as using only 4MB of
real memory in Task Manager but when you look in the VM column then it
may be consuming an additional 40MB. If you have more physical memory,
it is likely that less of the program needs to be swapped out (when it
is in use) which makes it speedier. So increasing memory room by adding
slower memory can still result in increased performance. The benchmarks
will look worse but then benchmarks aren't why you bought the computer.
You're interested in how responsive is the OS and the applications.
Once you have more memory, there are tweaks that let you keep more of
the OS exec in real memory so it doesn't get swapping to the slow hard
drive in the pagefile. Slower specs does not necessarily equate to
slower results.


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  #8 (permalink)  
Old 01-01-2007, 10:35 PM
DaveW
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Posts: n/a
Default Re: Will PC2100 RAM slow down computer that takes PC2700?

It will slow memory processes 33%. I wouldn't do it.

--
DaveW

----------------
"CharlesBlackstone" <charlesblackstone1@hotmail.com> wrote in message
news:1167467586.667378.116470@48g2000cwx.googlegro ups.com...
> Hi, I want to give my friend's son a gig of ram I took out of my Dell
> Lattitude D800 laptop, for his Dell Inspiron 8600. He currently only
> has half a gig. His machine takes newer PC2700 ram whereas mine is
> PC2100 ram. How much will PC2100 ram slow his machine?
>
> Thanks much...
>




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