DRAM memory can consist of individual components soldered on board or SIMM modules inserted in a single SIMM socket. Historically, 2-MB of DRAM was soldered on board and a single 2-MB, 4-MB, or 16-MB DRAM SIMM was inserted into the socket, depending on feature set and options ordered. In the future, the base memory will be implemented differently depending on feature set ordered.
The following table illustrates the changes:
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IOS Release 10.2(2) Old Physical New Physical
Feature Set Base DRAM Configuration Configuration
===========================================================================
EN 6-MB 2-MB soldered, 2-MB soldered,
4-MB SIMM 4-MB SIMM
DT + IBM Base 4-MB 2-MB soldered, 4-MB SIMM
2-MB SIMM
DT 4-MB 2-MB soldered, 4-MB SIMM
2-MB SIMM
IP/IPX + IBM Base 4-MB 2-MB soldered, 4-MB SIMM
2-MB SIMM
IP/IPX 4-MB 2-MB soldered, 4-MB SIMM
2-MB SIMM
IP + IBM Base 2-MB 2-MB soldered 2-MB soldered
IP 2-MB 2-MB soldered 2-MB soldered
2501/2CF CFRAD 2-MB 2-MB soldered 2-MB soldered
2503/4I ISDN 2-MB 2-MB soldered 2-MB soldered
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Cisco is releasing a new 8-MB DRAM option for increased configuration
flexibility. We are also changing the Cisco 2500 DRAM options product names
to be consistent with how Flash products are named. The net result of these
changes should be more simplified ordering and increased flexibility. The
following table lists the old and new DRAM products:
--------------------------------------------------------------------------- Old Product Number New Product Number New Product Number Description =========================================================================== MEM-4MB(=) MEM-1X2D(=)* Optional 2-MB DRAM SIMM* MEM-6M MEM-1X4D(=) Optional 4-MB DRAM SIMM N/A MEM-1X8D(=) Optional 8-MB DRAM SIMM MEM-18M MEM-1X16D(=) Optional 16-MB DRAM SIMM --------------------------------------------------------------------------- * Available for models 2501 through 2504 only.The new product names specify the actual memory module ordered rather than how much total memory is ultimately in the system. This is consistent with the way Flash SIMM modules are named, and is more flexible for the future. The same physical devices are used for the new products as were used for the old (e.g., the same 4 MB DRAM SIMM is used for MEM-1X4F and MEM-6M). We are simply using more generic names that are consistent with the Flash naming scheme. The new products are orderable December 14, 1994. System orders for the old products will automatically be adjusted where appropriate.
The following tables summarize the standard and optional Flash and DRAM memory by IOS feature set:
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IOS Release 10.2(2) Standard Optional Total
Feature Set DRAM DRAM Products DRAM
===========================================================================
EN 6-MB MEM-1X8D(=) 6, 10, 18-MB
MEM-1X16D(=)
DT and IBM Base 4-MB MEM-1X8D(=) 4, 8, 16-MB
MEM-1X16D(=)
DT 4-MB MEM-1X8D(=) 4, 8, 16-MB
MEM-1X16D(=)
IP/IPX and IBM Base 4-MB MEM-1X8D(=) 4, 8, 16-MB
MEM-1X16D(=)
IP/IPX 4-MB MEM-1X8D(=) 4, 8, 16-MB
MEM-1X16D(=)
IP and IBM Base 2-MB MEM-1X2D(=)* 2, 4, 6, 10, 18-MB
MEM-1X4D(=)
MEM-1X8D(=)
MEM-1X16D(=)
IP 2-MB MEM-1X2D(=)* 2, 4, 6, 10, 18-MB
MEM-1X4D(=)
MEM-1X8D(=)
MEM-1X16D(=)
2503/4I ISDN 2-MB MEM-1X2D(=)* 2, 4, 6, 10, 18-MB
MEM-1X4D(=)
MEM-1X8D(=)
MEM-1X16D(=)
2501/2CF CFRAD 2-MB MEM-1X2D(=)* 2, 4, 6, 10, 18-MB
MEM-1X4D(=)
MEM-1X8D(=)
MEM-1X16D(=)
---------------------------------------------------------------------------
* Available for models 2501 through 2504 only.
---------------------------------------------------------------------------
IOS Release 10.2(2) Standard Optional Maximum
Feature Set Flash Flash Products Total Flash
===========================================================================
EN 4 or 8-MB* MEM-1X4F(=) 4, 8, 16-MB
MEM-1X8F(=)
DT and IBM Base 4-MB MEM-1X4F(=) 4, 8, 16-MB
MEM-1X8F(=)
DT 4-MB MEM-1X4F(=) 4, 8, 16-MB
MEM-1X8F(=)
IP/IPX and IBM Base 4-MB MEM-1X4F(=) 4, 8, 16-MB
MEM-1X8F(=)
IP/IPX 4-MB MEM-1X4F(=) 4, 8, 16-MB
MEM-1X8F(=)
IP and IBM Base 4-MB MEM-1X4F(=) 4, 8, 16-MB
MEM-1X8F(=)
IP 4-MB MEM-1X4F(=) 4, 8, 16-MB
MEM-1X8F(=)
2503/4I ISDN 4-MB MEM-1X4F(=) 4, 8, 16-MB
MEM-1X8F(=)
2501/2CF CFRAD 4-MB** MEM-1X4F(=) 4, 8, 16-MB
MEM-1X8F(=)
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* IOS Release 10.2 and later Enterprise feature set requires (and comes
bundled with) 8-MB Flash. Release 10.0 and earlier requires 4-MB Flash.
** The Cisco 2501/2CF products were originally released with 2-MB Flash
standard. To provide investment protection, Cisco is immediately
upgrading the base Flash configuration to 4-MB. Orders in the backlog
will be adjusted, and field units will be upgraded at no charge to the
customer.
--------------------------------------------------------------------------- Cisco Memory Product Approved Manufacturer Manufacturer's Part Number =========================================================================== MEM-1X2D(=) Smart Module SM536512W-8MEM-1X4D(=) NEC MC421000A36BE-70 Micron MT9D136M-7 Mitsubishi MH1M36BNDJ-7 Hyundai HYM536100AM-70 Samsung KMM5361003C-70 Oki MSC23136B-70BS12
MEM-1X8D(=) Smart Module SM536C2000-7
MEM-1X16D(=) Mitsubishi MH4M36ANXJ-7 Samsung KMM5364100A-70 NEC MC-424000A36BE-70 Hyundai HYM536410M-70 Hitachi HB56D436SBR-7AGS
MEM-1X4F(=) Smart Module SM732C1000B-12
MEM-1X8F(=) Smart Module SM732C2000B-10 ---------------------------------------------------------------------------
A: The new DRAM options are available for any Cisco 2500 model.Q: What Cisco 2500 models get the new base memory board (that contains no soldered on memory and one 4-MB DRAM SIMM)?
A: Ultimately, any model with a 4-MB base feature set (currently IP/IPX, IP/IPX & IBM Base, DT, and DT & IBM Base) will get the new base memory board. Initially, this only applies to models 2505 through 2515. In late February 1995, models 2501 through 2504 will begin shipping with this DRAM configuration.Q: What will happen to existing orders for old DRAM options?
A: All system orders will have a new part number expanded which corresponds to the base board in the system. However, this happens as part of the order expansion and verification process and will not effect the customer ordering process. Since the DRAM option price remains effectively unchanged, most orders for the old DRAM options won't be changed. Once they are exhausted, the old memory products will be obsoleted. However, orders for IP/IPX, IP/IPX & IBM Base, DT, and DT & IBM Base that also include the optional MEM-6M and MEM-18M will be modified. Cisco will substitute MEM-1X8D for MEM-6M at no additional charge, and will substitute MEM-1X16D for MEM-18M.