700 Series     

800 Series

DRAM is used for packet memory, routing tables, and dynamic memory used by IOS, plus running IOS image (uncompressed)

There is one DIMM slot for adding additional DRAM in increments of 4 or 8MB.

NOTE: Flash consists of fixed 4MB soldiered to the motherboard in addition to one onboard (socketed) 4MB Mini-Flash card. Card sizes supported are 4 or 8MB. Mini-Flash is a new type of flash memory packaged in a small card that is socketed on the motherboard.

1000 Series

Flash memory is optional. If you do not order Flash memory (ie order an SW part number), the router must boot the software from a TFTP server on the Ethernet LAN (not serial).

1400 Series

DRAM consists of fixed 8MB soldiered to the motherboard in addition to one DIMM slot capable of accepting 4, 8, or 16MB DIMM.

The single Flash slot accepts 4, 6, 8, 12, or 16MB PCMCIA flash cards.

(Router ships with 8MB soldiered DRAM plus 8MB DIMM, 4MB Flash card, console cable and power supply)

1601-1604 Series

 DRAM is used for packet memory, routing tables, and dynamic memory used by IOS.

 A Parity DRAM SIMM may be installed in the router; however, doing so will disable the 2MB of DRAM soldiered on the motherboard.

Flash Card may not be removed while router is running.

(Router ships with 2MB DRAM, 4MB Flash card, console cable and power supply)

1601-1605 R Series

DRAM is used for packet memory, routing tables, and dynamic memory used by IOS, plus running IOS image (uncompressed)

 A Parity DRAM SIMM may be installed in the router; however, doing so will disable the 8MB of DRAM soldiered on the motherboard.

Flash card may be removed after router has booted.

(Router ships with 8MB DRAM, 4MB Flash card, console cable and power supply)

1700 Series

DRAM is used for packet memory, routing tables, and dynamic memory used by IOS, plus running IOS image (uncompressed)

There is one DIMM slot for adding additional DRAM in increments of 4, 8, 16, and 32 MB.

NOTE: Flash consists of one onboard (socketed) Mini-Flash card. Card sizes supported are 4, 8, and 16 MB. Mini-Flash is a new type of flash memory packaged in a small card that is socketed on the motherboard.

(Router ships with 16-MB DRAM, 4-MB Mini-Flash card, console cable and power supply)

1750-xV Series

DRAM and Flash architecture is the same as for the regular 1700 Series.

2500 Series

NOTE:   Minimum DRAM for software feature set requested is shipped with router. DRAM = Primary+shared

Primary memory is used to store the operating configuration, routing tables, caches, and queues

Shared memory is used to store incoming and outgoing packets

NOTE: Early 2500s came with 2MB of DRAM soldiered on the motherboard. So some existing memory amounts may be in increments of [2, 4, 8, 16] + 2MB.

(Router ships with console cable kit, 19" rackmount kit and power supply)

AS5200 Series

There are two types of removable DRAM SIMMs in the access server.   This first type is the main memory DRAM SIMMs. Main memory is used by the CPU to store the operating configuration, routing tables, caches, and queues. The second type is the packet (shared) memory DRAM SIMM (labeled PKT). Packet memory is used to store incoming and outgoing packets.

AS5300 Series

2600 Series

DRAM consists of two DIMM slots that support 4, 8, 16 and 32MB DIMMs for a total of 16 to 64MB.  Older 2600s shipped with 16MB default DRAM.

The 2600 ships with non-parity DRAM.

Flash consists of one SIMM slot that supports a 4, 8 or 16MB SIMM.

(Router ships with console cable kit, 19" rackmount kit and power supply)

3620 Series

Standard DRAM configuration is as follows:

Direct - First two slots have 16MB SIMMs,  Dist. - First two slots have 16MB SIMMs;  Older 3620s were shipped with 16MB default DRAM.

The DRAM is partitioned into processor memory and packet memory areas.

NOTE: When adding DRAM, follow the 3600 Series Memory Guidelines

Standard Flash configuration is as follows:

Direct - First slot has a 4MB SIMM,  Dist. - First slot has a 4MB SIMM

3640 Series

Standard DRAM configuration is as follows:

Direct - First two slots have 16MB SIMMs,  Dist. - First two slots have 16MB SIMMs; Older 3640s were shipped with 16MB default DRAM.

The DRAM is partitioned into processor memory and packet memory areas.

NOTE: When adding DRAM, follow the 3600 Series Memory Guidelines

Standard Flash configuration is a follows:

Direct - First slot has a 4MB SIMM,  Dist. - First slot has a 4MB SIMM

3660 Series

DRAM cosists of two DIMM slots may hold DIMM sizes ranging from 16 to 128MB.

NOTE:  When adding DRAM, follow the 3600 Series Memory Guidelines

3810 Series

NOTE: 3810s ordered with 12.0 IOS ship with 8MB of Flash and 32MB of DRAM.

(Router ships with console cable kit, 19" rackmount kit and power supply)

4000M Series

Flash may contain only one SIMM and one empty slot;however, if both slots are populated, the SIMMs must be identical.

4500M Series

DRAM slots must contain two identical SIMMs.

Flash may contain only one SIMM and one empty slot;however, if both slots are populated, the SIMMs must be identical.

4700M Series

DRAM slots must contain two identical SIMMs.

Flash may contain only one SIMM and one empty slot;however, if both slots are populated, the SIMMs must be identical.

7000 Series

7100 Series

SDRAM memory consists of three DIMM slots on the network processor card that contain the packet and system memory.  DIMM slot 0 is used exclusively for packet memory and is fixed at 64 MB. DIMM slots 1 and 2 are used for system memory.  The amount of memory installed in DIMM slot 1 must be greater than or equal to the amount of memory installed in DIMM slot 2, and DIMM slot 2 may be empty.

Flash memory consists of two PCMCIA slots capable of holding flash memory cards or flash disks.  A 40MB Flash Disk is the default memory device that ships with the Cisco 7100 series router. Flash memory cards that are used in Cisco 7200 series and Cisco 7500 series routers are also supported on Cisco 7100 series routers.   The single internal flash SIMM is for holding the boot helper image (bootflash).

(Router ships with 64MB DIMM in slot 0, 64MB DIMM in slot 1, 40MB Flash Disk, console cable and rack mounts)

7200 Series - NPE 300

The NPE-300 contains two banks of SDRAM. Both SDRAM banks are used for all packet memory requirements; however, bank 0 is used exclusively for packet memory and is set at a fixed configuration in the factory.

Bank 1 contains two user-configurable SDRAM slots, DIMM slot 2 and DIMM slot 3. Both slots in bank 1 can be populated by DIMMs of different sizes; however, the size of the DIMM in slot 2 must be greater than or equal to the size of the DIMM in slot 3, and  DIMM slot 3 may be empty.

7200 Series - NPE 225, 175

SDRAM consists of a single DIMM slot capable of holding either a 64MB DIMM or a 128MB DIMM.  SDRAM is used for all system and packet memory.

7200 Series - NPE 200, 150, 100

DRAM Guidelines - Bank 0 must have 2 SIMMs of the same type. Bank 0 can have a different SIMM size than Bank 1, but Bank 0 SIMMs must be of a larger size.

SHARED memory amount above is soldiered on the motherboard and is added to the SRAM amount carved from Main DRAM to make up the total amount of packet memory.

7200 Series - I/O Controller

Internal Flash SIMM is static and is used only for the RxBOOT or Boot Helper image.

PCMCIA Flash is required to hold the IOS image. It consists of two slots capable of holding 8, 16, or 20MB PCMCIA Flash cards.

7500 Series

NOTE: RSP4 DRAM is not interchangable with RSP/RSP2 DRAM.

12000 Series

DRAM consists of two DIMM slots.

Internal Flash SIMM is static and is used only for the RxBOOT or Bootflash image.

PCMCIA Flash is required to hold the IOS image. It consists of two slots capable of holding PCMCIA Flash cards up to 64MB.

SRAM is for CPU cache.