hard disk beep?

I think that when the computer is under heavy memory load, the hard disk or motherboard beeps (quietly), but not from the speakers (&comp may freeze).
The problem is I ran a hd cheker and it reports no problems.
windows log viewer says otherwise -

Details
Product: Windows Operating System
ID: 51
Source: Disk
Version: 5.0
Symbolic Name: IO_WARNING_PAGING_FAILURE
Message: An error was detected on device %1 during a paging operation.

Explanation
An input/output (I/O) request to a memory-mapped file failed and the operation was retried.


User Action
If these events are logged regularly on a primary system drive, replace the device. Otherwise, no user action is required.



Version: 5.2
Symbolic Name: IO_WARNING_PAGING_FAILURE
Message: An error was detected on device %1 during a paging operation.

Explanation
An input/output (I/O) request to a memory-mapped file failed and the operation was retried.



So I guess my problem is the hard drive with the paging file (virtual memory).
I have run windows chkdsk & scandsk, but it doesnt do anything.
Can anyone suggest (in layman terms) a drive tool to use, or what to do now, as it needs sorting out as i have only 1 computer and itis my work and livlihood.
thanks