[SunHELP] sparc 5 errors

[Ilya]

can someone tell what these could mean? on sparc 5 
thx (there are many more of these, i just pasted some)
ok test-all
Testing /memory at 0,0
ERROR: Physical Address   = 0x9a3f8        0                          
                Expected  = 0xa5a5a5a5
                Observed  = 0xa5a501a5
                U-number  = J0300
ERROR: Physical Address   = 0x9a400
                Expected  = 0xa5a5a5a5
                Observed  = 0xa5a501a5
                U-number  = J0300
ERROR: Physical Address   = 0x9a408
                Expected  = 0xa5a5a5a5
                Observed  = 0xa5a501a5
                U-number  = J0300
ERROR: Physical Address   = 0x9a410
                Expected  = 0xa5a5a5a5
                Observed  = 0xa5a501a5
                U-number  = J0300
ERROR: Physical Address   = 0x9a418
                Expected  = 0xa5a5a5a5
                Observed  = 0xa5a501a5
                U-number  = J0300
ERROR: Physical Address   = 0x9a420
                Expected  = 0xa5a5a5a5
                Observed  = 0xa5a501a5
                U-number  = J0300
ERROR: Physical Address   = 0x9a428
                Expected  = 0xa5a5a5a5
                Observed  = 0xa5a501a5
                U-number  = J0300
ERROR: Physical Address   = 0x9a430
                Expected  = 0xa5a5a5a5
                Observed  = 0xa5a501a5
                U-number  = J0300