Cisco equipment memory chip specification Cisco Forum FAQFrom my experiences, the following router model share the similar memory chip specification. Therefore, most of the time memory chip from one model is interchangeable with another.
1. DRAM
* 800 series prior to 850/870 series; SOHO 90 series; 1700 series; 2600XM series; 2650 & 2651 - 100 Pin DIMM, SDRAM, 125MHz/133MHz, Unbuffered, Non-parity, 8ns, 3.3V, 16Meg x 32
* 800 series: 870 series - 168 pin DIMM low-profile CL3 non-ECC PC 133, Kingston KVR133X64C3L/128 works (full specification is clickable here), modules that are not low profile will not fit in the case correctly
* 2600 series (excluding XM models and the 2650, 2651, and 2691) - 100 Pin DIMM, EDO, 60ns
* All 1800 routers EXCEPT 1841 - 200 Pin SODIMM, SDRAM, 266MHz DDR, Non-ECC CL2.5 e.g. Kingston KVR266X64SC25/256
* 1841 - 144 Pin SODIMM, SDRAM, 133MHz, Non-ECC CL3 e.g. Kingston KVR133X64SC3/256
* 2811/21/51 - Details unknown but Kingston do a 512MB upgrade - KCS-D2800/512
* 3825/45 - Details unknown but Kingston do 256MB & 512MB upgrades - KCS-D3825/256 & KCS-D3825/512
2. Flash
* 800, 820
* 2500; 2600 (2610, 2611, 2612, 2613, 2620, 2621, 2650, 2651); 3600; 4000 (4000/4000M, 4500/4500M, 4700/4700M)
* All 2600XM models
For more info, check out the following Cisco link:
Cisco 1700 series
Cisco 2600 and 2600XM series
ASA 5500
ASA5505 DRAM: 184Pin PC3200 DIMM CL3 UB Non-ECC (ie Kingston KVR400X64CA3/512 works!) MAX 512Mb
ASA5505 Flash: CompactFlash (512Mb SanDisk works)
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by aryoba
last modified: 2008-03-23 18:30:20