You may find that svchost.exe holds a lock on a service whilst all the service libraries are being loaded. This in turn then prevents any other services in the same instance of svchost.exe from starting up until the call to the function has been returned.
An updated version of svchost.exe that will address the issue is available here http://support.microsoft.com/kb/2510636
When you run a Cable diagnostic using the Intel PROSet Network Adapter Diagnostics you may find that the utility incorrectly reports that your network cable is over 100 Metres and/or that the Cable is faulty/poor.
This issue can occur if you have a network switch that implements “power Saving” or “Green Ethernet” this feature is meant to reduce the power to a network port that is supporting a device with a short network cable run.
This “power saving” or “Green Ethernet” feature can cause the diagnostics to fail and can sometimes contribute to network drops and/or poor network throughput. If you have a managed/smart switch then you can normally login via a browser and “Disable” this feature to correct the issue.
You may experience disk I/O performance issues if your server contains an Intel Xeon Westmere-EX (10 Core) processor
This can occur because some of the I/O completion port objects are not cache-aligned. This behavior is what causes poor disk I/O performance.
You can resolve the issue by updating Ntoskrnl.exe and Ntkrnlpa.exe updated versions are available for download from http://support.microsoft.com/kb/2545635
You may suffer from a BSOD Stop Error Message with STOP: 0x0000007E and/or experience a Kernel Sockets Leak if you are running an older version of Ancillary Function Driver for Winsock or afd.sys
To prevent these two issues you need to be running the latest version of Afd.sys which can be downloaded from http://support.microsoft.com/kb/2579274