Re: Problem with trying to install a PC133 memory in IBM 600E

Thank you for the reply.

I wasnt aware of the density aspect .
I'll try to find a more compatible .

Could i update  the 600E wiki page ?

Alexandros.


On 10/10/18 11:29 AM, Bjørn Mork wrote:
> aprekates <[email protected]> writes:
>
>> Greetings to the list.
>>
>> i'm proud owner and user of a thinkpad  600E
>>
>> https://www.thinkwiki.org/wiki/Category:600E
>>
>> Unfortunately trying to upgrade its memory i bought
>> a PC133 memory module. When its plugged in in either
>> of one memory slots (even alone) (i've tested all possible
>> setups with or without a companion old working pc66 module)
>> and unfortunately the machine will just display the memory count
>> and it kindof freezes. Even F1 to bios diagnostics wont work. In
>> the spirit of the manual i'm in the 'No Beep Syptoms' category.
>>
>>
>> So i guess the memory is faulty ? or i there are PC133 (newer?) types
>> not compatible with my chipset.
>>
>> The diacritics of the memory's sticker:
>> Samsung
>> KR 0545
>> M464S3254EUS-L7A
>> PC133S-333-542
>> 256MB Sync 133MHZ CL3
>>
>> On chip :
>>
>> SAMSUNG 133
>> K4S561632B-TL75
>> ABE938XX KOREA
>>
>> I bought if from ebay
> PC133 should normally not be a problem. That's only the max speed
> rating.  It will work as PC66 in your laptop.  But the 600E has a 440BX
> chipset according to https://www.thinkwiki.org/wiki/Intel_440BX , and
> that puts some further restrictions on the modules.
>
> Quoting from the "Densities" section at
> https://arstechnica.com/civis/viewtopic.php?f=8&t=341021 :
>
>   "The newer 32Mx4 and higher parts often seen in 256MB and 512MB DIMMs
>    are not compatible."
>
> I believe the module you have use such chips. Counting chips give you an
> indication... As well as googling for the parts.
>
> It might be easier to find a 256MB PC100 module than a PC133 module with
> the correct low density chips.  A quick search on eBay shows that there
> are a few of those available.  But I don't dare pointing at any specific
> one, as I will NOT guarantee that any of them works....
>
>
>
>
> Bjørn
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