On Wed, 3 Nov 2010, Bob McConnell wrote: _snip_ > And make sure you button the cabinet back up, with all covers in place > and put it back on the rack where it normally sits. Running this test > with the case open or sitting in free air is a waste of time unless that > is how the system usually operates. All memory testing has to be done > under normal working conditions to get the maximum benefit. > > Bob McConnell > N2SPP Of course. I noticed that with the side cover off the hard drive is not as cool. Probably due to the air flow not being drawn over the drive, but in from the side of the cabinet. It's an ASROCK K7S8XE Rev. 3.01 M/B with 3 DDR(1) memory slots. 2 x 1GB PC2100 DIMMS, and a 512MB one. I tested and replaced the BIOS battery as well. That was getting a bit low, just under 3 volts. Been in the machine since Jan 2006. So far, testing each memory module in slot 1 has clocked no errors. Each test ran for at least 20 hours. I now have the 512MB module in slot 2, to test that slot. Then I'll put it in slot 3 and test that one. The first 1GB DIMM was tested with the side cover off. So I might test that again, with the side cover on this time. Once these test are completed, I'll post the results. Thanks for all the help so far. Keith Roberts