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Knowledge Base

Upgrading Memory Bar Results in Reset of AR 28-80 Router

Publication Date:  2012-07-27  |   Views:  527  |   Downloads:  0  |   Author:  Zhang Gang  |   Document ID:  EKB0000120910

Contents

Issue Description

A site uses AR 28-80 router. After adding memory to the router,  the router  restarts by itself. 

Alarm Information

No

Handling Process

Replace the memory bars of Trancent company with these from Kingston to avoid the problem. 

Root Cause

According to analysis on a failed router AR 28-80 returned by the customer, the original memory bar configured is Kingston 128M, and the newly addes is Trancent 128M. The test result shows that only the memory bars of this batch from Trancent company have the problem, and the other else batches from the company are normal. Different batches of memory bars from Trancent company use different memory granules; the type of failed memory bars is Trancent 128M PC133 SDRAM, using SAMSUNG  K4S280832E  428 as memory granule. 

Suggestions

No