Intel® Server Board SE7520BD2/SE7520BD2-D2 
    Revision 2.0 
 
18 
 
6. Installation Guidelines 
6.1  Emulex* LP1050Ex and Qlogic* QLE2360 Fibre Channel 
Adapters Experience Delayed Write Failures during Extended 
Stress Testing 
Issue:  During Intel’s extended stress test runs, fibre channel hard drives attached to the 
Emulex* LP1050Ex or Qlogic QLE2360 PCI Express fibre channel adapters 
begin experiencing delayed write failures and were eventually marked offline.  
These failures have only been seen when running under Microsoft* Windows* 
Server 2003.  Failures have not been seen when running under Novell* 
NetWare* 6.5 or Red Hat* Advanced Server 3.0. 
Implication:  Fiber channel hard drives may experience delayed write failures or the hard 
drives may be marked offline if the Emulex* LP1050Ex or Qlogic QLE2360 PCI 
Express fiber channel adapters are utilized in combination with the Intel® Server 
Board SE7320SP2, SE7520BD2, SE7520AF2, SE7520JR2, or SE7320VP2 and 
the Microsoft* Windows* Server 2003 operating system, if the system is 
subjected to extended periods of intensive I/O application stress. 
Guideline:  The Emulex* LP1050Ex or Qlogic QLE2360 PCI Express fibre channel adapters 
should not be utilized with the Intel® Server Board SE7320SP2, SE7520BD2, 
SE7520AF2, SE7520JR2, or SE7320VP2 with the Microsoft* Windows* Server 
2003 operating system.  The Emulex LP1050Ex or Qlogic QLE236x PCI Express 
fibre channel adapters may be used with these server boards with Novell* 
NetWare* 6.5 or Red Hat* Advanced Server 3.0. 
Status:  Intel is currently working with Emulex and Qlogic to investigate a fix for this issue.
6.2  Adapter is supported only with Intel Server Board SE7520BD2 
with C4 or later stepping Intel® E7525 server chipset (i.e. 
SRCU42E) 
Issue: 
This adapter has only been tested with Intel Server Board SE7520BD2 that 
utilize C4 or later stepping Intel® E7525 server chipsets (PBA # C44689-701, 
C44688-701, C444686-701 or later revisions). 
Implication:  This adapter has not been tested with and is not recommended for use with Intel 
Server Board SE7520BD2 that utilize C2 stepping Intel® E7525 server chipsets 
(PBA # C44689-605, C44688-605, C44686-605).  Please reference TA 707-03 
for further information. 
Guideline:  This adapter has not been tested with and is not recommended for use with Intel 
Server Board SE7520BD2 that utilize C2 stepping Intel® E7525 server chipsets 
(PBA # C44689-605, C44688-605, C44686-605).  Please reference TA 707-03 
for further information. 
Status:  The MCH component stepping change implemented on the Intel Server Board 
SE7520BD2 in early Q4 2004 added support for broad PCI Express* adapter