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#1 |
Registered User
Join Date: Sep 2009
Location: Norway
Posts: 1,715
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Identifying how many megs a RAM stick has
I have a box full of old EDO RAM sticks, and I want to identify how many megs each of them are without the good old "insert into a machine and check" trick. Almost none of them have size on the stickers.
How can I do this? I guess I have to count how many chips it has got and interpret from the chip ID? I have no clue how I am supposed to "read" the chip ID... |
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#2 |
Global Moderator
Join Date: Aug 2008
Location: Sidcup, England
Posts: 10,300
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At this site you can just enter the RAM chip part numbers to find out the manufacturer and specifications:
http://www.chipmunk.nl/DRAM/ChipManufacturers.htm |
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#3 |
Zone Friend
Join Date: Aug 2002
Location: Belgium
Age: 51
Posts: 1,297
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I just google any reference found on the pcb of the stick, always find the specs on some site
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#4 |
Registered User
Join Date: Sep 2009
Location: Norway
Posts: 1,715
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Well, many of my RAM sticks doesn't even have any serials or "brand" on it... Just on the ICs themselves.
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#5 |
Registered User
Join Date: Jun 2010
Location: PL?
Posts: 2,869
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each IC have name - own unique number - search for IC - capacity of module will be direct capacity of all chips - short modules are 8 bit (+sometimes parity bit however it is not important) long 32 bits (4 bits parity sometimes - can be used to store additional data if parity not used but usually are not used)
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#6 |
Precious & fragile things
Join Date: Feb 2009
Location: Victoria, Australia
Posts: 1,946
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Part numbers will give you data capacity but not ram geometry, I will be honest here, I cheat, I have a ram tester.
http://en.wikipedia.org/wiki/Memory_geometry I haven't done the sums and technology changes all the time, confusing terms and no standards, I love the computer industry. |
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#7 |
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Join Date: Jul 2003
Location: Helsinki / Finland
Age: 43
Posts: 9,900
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This has come in handy over the years:
http://jope.fi/conversionchart.htm I pilfered it from some site that has long since disappeared. |
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#8 | |
Registered User
Join Date: Jun 2010
Location: PL?
Posts: 2,869
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Quote:
Oh no, lot of modules are easy to discover only based on memory chips (size, organization, amount) - industry standarized this quite well - only rare modules for non-PC's, servers can b different. |
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