U45 主板问题，请教

tian_005

U45的主板坏了，具体不知道那个芯片坏了，首先发现了几个鼓包。修好了，但是，问题还在。请教高手，谢谢了。
0>--------- IO-Bridge Quick Read Only of CSR and ID ---------------
0>--------------------------------------------------------------
0>fire 1 JBUSID  00000400.0f000000 =
0>                                       fc000002.f03dda24
0>--------------------------------------------------------------
0>fire 1 JBUSCSR 00000400.0f410000 =
0>                                       00000ff5.13cb6000
0>--------------------------------------------------------------
0>IO-Bridge unit 1 jbus perf test
0>IO-Bridge unit 1 int init test
0>IO-Bridge unit 1 msi init test
0>IO-Bridge unit 1 ilu init test
0>IO-Bridge unit 1 tlu init test
0>IO-Bridge unit 1 lpu init test
0>IO-Bridge unit 1 link train port A
0>ERROR: TEST = IO-Bridge unit 1 link train port A
0>H/W under test = Motherboard IO-Bridge 1, CPU
0>Repair Instructions: Replace items in order listed by 'H/W under test' above.
0>MSG = Timeout waiting for link up status bits on port 0!
0>END_ERROR

0>
0>ERROR: TEST = IO-Bridge unit 1 link train port A
0>H/W under test = Motherboard IO-Bridge 1, CPU
0>Repair Instructions: Replace items in order listed by 'H/W under test' above.
0>MSG =
         *** Test Failed!! ***

0>END_ERROR

Power On Selftest Failed.
   CPU: 0 cause: Motherboard IO-Bridge 1, CPU
ERROR: The following devices are disabled:

tian_005

难道没有好心的朋友知道？

doging

这个问题估计国内没几个会的；

nimysun

这就是传说中的芯片级维修？难度较高。到电子市场看有没有大师能够搞定。

znnnz

没准只是CPU坏了而已。