Cisco 7500 Series Routers

Field Notice: Cisco IOS Software Release 12.0-based Images Require 64 MB of DRAM Memory for Some Platforms

Revised October 11, 1999

Products Affected



Cisco 7200 Series

including Cisco 7204 and Cisco 7206

Cisco 7200VXR

including 7204VXR and 7206VXR

Cisco 7500 Series








Problem Description

The platforms listed in the Products Affected section above require a minimum of 64 MB of dynamic RAM (DRAM) to run Cisco IOS 12.0, 12.0T, 12.0S, 12.0XE, 12.0XI, 12.0.3c-W5 and later images. The Cisco IOS 12.0-based release notes for the affected products incorrectly state the minimum memory requirements as 32 MB of DRAM. This error is being corrected in the release notes. In addition, the configuration tool used to order products allowed customers to incorrectly configure systems with 32 MB of DRAM.


Because the Cisco IOS 12.0-based images have grown in size, 32 MB of DRAM is now inadequate for some platforms. This information was not originally captured in the Cisco IOS 12.0 release notes for affected platforms.

Additionally, the configuration tool used to order products allowed Cisco IOS 12.0 customers to purchase and configure systems with 32 MB of DRAM. The configuration tool has been updated to alert users ordering systems with Cisco IOS 12.0-based images that a minimum of 64 MB DRAM is required.

Problem Symptoms

If a Cisco IOS 12.0 image is loaded on a system with 32 MB of DRAM, the following errors may be encountered:


This message will appear on boot failure due to inadequate memory.

Affected images may potentially cause memory allocation errors. An example of a memory allocation error is as follows:

Jul 23 06:44:52.746: %SYS-2-MALLOCFAIL: Memory allocation 
of 788 bytes failed from 0x60385F60, pool I/O, alignment 32


Customers installing Cisco IOS 12.0 mainline, 12.0T, 12.0S, 12.0XE, 12.0XI, 12.0.3c-W5 or later images on the affected products or platforms will need to purchase additional DRAM.

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

Receive Email Notification For New Field Notices

Product Alert Tool - Set up a profile to receive email updates about reliability, safety, network security, and end-of-sale issues for the Cisco products you specify.