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Kelly
June 1st 04, 03:59 AM
I am trying to upgrade from a 64mb to a 128mb Ram.My
computer says It has a Celeron 900MHXZ/100MHZ. When
shopping I find a message that PC133 Moduels are no longer
backward Compatable with Pc 100 Machines. What is a PC133
mod. and how does it differ from a PC 100. Is the Pc 133
module faster than the 100? If I can get one of the
original compatable pc133 modules for my compute will it
be a better choice than a PC 100 module? CONFUSED

Steve Baron - KB3MM
June 1st 04, 05:11 AM
Take a look at www.crucial.com and look up your system and see what is
compatible.

"Kelly" > wrote in message
...
> I am trying to upgrade from a 64mb to a 128mb Ram.My
> computer says It has a Celeron 900MHXZ/100MHZ. When
> shopping I find a message that PC133 Moduels are no longer
> backward Compatable with Pc 100 Machines. What is a PC133
> mod. and how does it differ from a PC 100. Is the Pc 133
> module faster than the 100? If I can get one of the
> original compatable pc133 modules for my compute will it
> be a better choice than a PC 100 module? CONFUSED

Rick T
June 1st 04, 06:35 AM
Kelly wrote:
> I am trying to upgrade from a 64mb to a 128mb Ram.My
> computer says It has a Celeron 900MHXZ/100MHZ. When
> shopping I find a message that PC133 Moduels are no longer
> backward Compatable with Pc 100 Machines.

Really? Where'd you hear that ?

> What is a PC133
> mod. and how does it differ from a PC 100. Is the Pc 133
> module faster than the 100? If I can get one of the
> original compatable pc133 modules for my compute will it
> be a better choice than a PC 100 module? CONFUSED

Rick

Richard G. Harper
June 1st 04, 12:03 PM
'tis true. Most memory manufacturers are warning about this. A quick
Google should give you the details.

--
Richard G. Harper [MVP Win9x]
* PLEASE post all messages and replies in the newsgroups
* for the benefit of all. Private mail is usually not replied to.
* HELP us help YOU ... http://www.dts-l.org/goodpost.htm


"Rick T" > wrote in message
...
> Kelly wrote:
> > I am trying to upgrade from a 64mb to a 128mb Ram.My
> > computer says It has a Celeron 900MHXZ/100MHZ. When
> > shopping I find a message that PC133 Moduels are no longer
> > backward Compatable with Pc 100 Machines.
>
> Really? Where'd you hear that ?
>
> > What is a PC133
> > mod. and how does it differ from a PC 100. Is the Pc 133
> > module faster than the 100? If I can get one of the
> > original compatable pc133 modules for my compute will it
> > be a better choice than a PC 100 module? CONFUSED
>
> Rick

Rick T
June 1st 04, 01:10 PM
Richard G. Harper wrote:
> 'tis true. Most memory manufacturers are warning about this. A quick
> Google should give you the details.
>

hmm... the reason seems to be that the SPD timings might be different...
but that's really a BIOS issue more than anything else... also SDRAM
produced as 66/100 is generally 5V as opposed to 100/133 @ 3.3V. Learn
something new every day.



Rick

B.J.Honeycut
June 1st 04, 10:28 PM
On Tue, 01 Jun 2004 12:10:03 GMT,Rick T > penned
this whopper in microsoft.public.windowsme.hardware

> Richard G. Harper wrote:
>> 'tis true. Most memory manufacturers are warning about this. A quick
>> Google should give you the details.
>>
>
> hmm... the reason seems to be that the SPD timings might be different...
> but that's really a BIOS issue more than anything else... also SDRAM
> produced as 66/100 is generally 5V as opposed to 100/133 @ 3.3V. Learn
> something new every day.
>
>
>
> Rick
>

Watch out for latency timing too: CL3, CL2.5 or CL2.0, they don't mix in
the same system and require BIOS adjustments if even supported. RTFM to be
sure.

--
"Time will bring to light whatever is hidden;
it will cover up and conceal what is now shining in splendor."
Horace (65 - 8 BC); Roman poet.

Mike

Rick T
June 2nd 04, 11:37 AM
B.J.Honeycut wrote:

> On Tue, 01 Jun 2004 12:10:03 GMT,Rick T > penned
> this whopper in microsoft.public.windowsme.hardware
>
>
>>Richard G. Harper wrote:
>>
>>>'tis true. Most memory manufacturers are warning about this. A quick
>>>Google should give you the details.
>>>
>>
>>hmm... the reason seems to be that the SPD timings might be different...
>>but that's really a BIOS issue more than anything else... also SDRAM
>>produced as 66/100 is generally 5V as opposed to 100/133 @ 3.3V. Learn
>>something new every day.
>>
>>
>>
>>Rick
>>
>
>
> Watch out for latency timing too: CL3, CL2.5 or CL2.0, they don't mix in
> the same system and require BIOS adjustments if even supported. RTFM to be
> sure.
>

Well I"m mixing CL3 and "CL2.5" semi-successfully (I'm only getting CL3)

Rick

B.J.Honeycut
June 12th 04, 05:10 PM
On Wed, 02 Jun 2004 10:37:28 GMT,Rick T >
penned this whopper in microsoft.public.windowsme.hardware

> B.J.Honeycut wrote:
>
>> On Tue, 01 Jun 2004 12:10:03 GMT,Rick T >
>> penned this whopper in microsoft.public.windowsme.hardware
>>
>>
>>>Richard G. Harper wrote:
>>>
>>>>'tis true. Most memory manufacturers are warning about this. A
>>>>quick Google should give you the details.
>>>>
>>>
>>>hmm... the reason seems to be that the SPD timings might be
>>>different... but that's really a BIOS issue more than anything
>>>else... also SDRAM produced as 66/100 is generally 5V as opposed to
>>>100/133 @ 3.3V. Learn something new every day.
>>>
>>>
>>>
>>>Rick
>>>
>>
>>
>> Watch out for latency timing too: CL3, CL2.5 or CL2.0, they don't mix
>> in the same system and require BIOS adjustments if even supported.
>> RTFM to be sure.
>>
>
> Well I"m mixing CL3 and "CL2.5" semi-successfully (I'm only getting
> CL3)
>
> Rick
>

A lot of boards fall back to the lowest stting available. That wasn't true
until recently, and shouldn't be relied on, considering the extra expense
you pay for and get no use from. JMH <accounting> O.

--
"Time will bring to light whatever is hidden;
it will cover up and conceal what is now shining in splendor."
Horace (65 - 8 BC); Roman poet.

Mike

KT
June 21st 04, 08:19 PM
Try Crucial.com for memory and a discussion of your concern.
"Kelly" > wrote in message
...
> I am trying to upgrade from a 64mb to a 128mb Ram.My
> computer says It has a Celeron 900MHXZ/100MHZ. When
> shopping I find a message that PC133 Moduels are no longer
> backward Compatable with Pc 100 Machines. What is a PC133
> mod. and how does it differ from a PC 100. Is the Pc 133
> module faster than the 100? If I can get one of the
> original compatable pc133 modules for my compute will it
> be a better choice than a PC 100 module? CONFUSED