I have had bus errors on my Cisco 4000 router. 

I ran a memory diagnostic on memory addresses 0x00040000
to 0x067FFFFF which should have covered tests for DRAM lower location,
boot EPROM, Flash EPROM, and DRAM upper location as well as Onboard
ressources and system IO

( http://www.cisco.com/warp/public/112/appB.html#4000 ) 

The result of the test seems to indicate that my DRAM (lower location) is OK
but that the main board of the router is defective?

Is my interpretation correct?


>t m
Memory/Bus diagnostic

Starting Address [0x1000]? 0x00040000
Ending Address [0x1000000]? 0x067FFFFF
Hex argument for variable tests [0xffff]?
Select Tests [all]?
Number of passes to run [2]?
Trigger word for hardare debugging [0]?
Message Level (0=silence, 1=summary, 2=normal)[2]?

Testing addresses between 0x40000 and 0x67fffff

Begin pass 0, test 0
Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x2020000 in test number 0
 while attempting short read at add
ress: 0x2020000
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x2020002 in test number 0
 while attempting short read at add
ress: 0x2020002
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x2020004 in test number 0
 while attempting short read at add
ress: 0x2020004
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x2020006 in test number 0
 while attempting short read at add
ress: 0x2020006
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x2020008 in test number 0
 while attempting short read at add
ress: 0x2020008
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x202000a in test number 0
 while attempting short read at add
ress: 0x202000a
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x202000c in test number 0
 while attempting short read at add
ress: 0x202000c
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x202000e in test number 0
 while attempting short read at add
ress: 0x202000e
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x2020010 in test number 0
 while attempting short read at add
ress: 0x2020010
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x2020012 in test number 0
 while attempting short read at add
ress: 0x2020012
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x2020014 in test number 0
 while attempting short read at add
ress: 0x2020014
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x2020016 in test number 0
 while attempting short read at add
ress: 0x2020016
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x2020018 in test number 0
 while attempting short read at add
ress: 0x2020018
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x202001a in test number 0
 while attempting short read at add
ress: 0x202001a
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x202001c in test number 0
 while attempting short read at add
ress: 0x202001c
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x202001e in test number 0
 while attempting short read at add
ress: 0x202001e
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x2020020 in test number 0
 while attempting short read at add
ress: 0x2020020
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x2020022 in test number 0
 while attempting short read at add
ress: 0x2020022
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x2020024 in test number 0
 while attempting short read at add
ress: 0x2020024
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x2020026 in test number 0
 while attempting short read at add
ress: 0x2020026
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x2020028 in test number 0
 while attempting short read at add
ress: 0x2020028
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491

Bus Error control register: 0x00000fb0
non-local memory transaction timeout
system overtemp
local memory transaction timeout
at address 0x202002a in test number 0
 while attempting short read at add
ress: 0x202002a
    SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491
  End pass   Errors this pass: 22  Total errors: 22
22 total errors during 1 passes


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