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Router

From 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 - (provided by bigsy See Profile) 168 pin DIMM low-profile CL3 non-ECC PC 133, i.e. Kingston KVR133X64C3L/128 works (full specification is clickable here), modules that are not low profile will not fit in the case correctly

* 800 ISR series: 880 series - (provided by jmbronk See Profile, RuggeR See Profile) 512MB PC2 4200 SODIMM, i.e. Samsung PC2-4200S-444-12-A and Samsung 512MB PC2-4200S-444-12-A3 work

* 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 - (provided by kamikatze See Profile from this post) ECC DDR266/333/400 DDR. Kingston do a 512MB upgrade - KCS-D2800/512

* 3825/45 - (provided by kamikatze See Profile) DDR333 or higher with ECC and at least CL2.5 (@333MHz). Kingston do 256MB & 512MB upgrades - KCS-D3825/256 & KCS-D3825/512

Note from cramer See Profile
Cisco 3845: ECC, DDR333 (PC2700) ONLY
System only supports 166Mhz DDRs /PC3200 DIMMs

DRAM: Non ECC memory not supported !!
DRAM: DIMM0, invalid Module Data Width of 64
(non-ECC DIMMs)

DRAM: DIMM 0 width not supported - 4
DRAM: DIMM1 width not supported - 4
(1G DIMMs)

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: (provided by bigsy See Profile) 184 pin PC3200 DIMM CL3 UB Non-ECC i.e. Kingston KVR400X64C3A/512 works (full specification is clickable here), MAX 512MB
ASA5505 Flash: CompactFlash (512MB SanDisk works)

Some discussions

»[H/W] Anyone out there with an 891?
»[Info] Recommended 1811 3rd party ram
»ASA 5500 Series 8.3(x) Memory Requirements
»[H/W] 881W ISR RAM Upgrades
»Cisco 5520 ASA Memory


got feedback?
Just to let u know that non ecc ram DOES work in the 2811, I put in mine

2013-05-04 15:40:18


And 2801 also uses sodimm pc133 ram, like the 1841 does, I tested various makes in 128 and 256Mb and they all worked in the 2801 In the 2811 I tested both ECC and nonECC that worked Samsung 256mb DDR PC2100 CL2.5 ECC (pc2100u-25331-a1)(cn0510) Samsung 512Mb DDR PC2700 CL2.5 (pc2700u-25331-z)(cn0452) Ofcourse u can't run non ECC and ECC in the same device

2013-05-04 15:51:28


Just wanted to confirm that Samsung 512MB PC2-4200S-444-12-A3 is indeed compatible with the Cisco 881. Figured I'd take the gamble and bought a stick off ebay and it worked! I'll take a $10 upgrade over a $150 upgrade anyday.

2012-12-31 19:57:35 (RuggeR See Profile)


by aryoba See Profile
last modified: 2013-04-12 12:36:44


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