Hi again - thanks for your continued help.
1. I will continue to run Verifier.
2. Regarding "reports for power-offs" - I am unsure of where these will be stored, that's all. Would it be in Windows\minidumps ?
If that is the case then for the record - not every power-off is creating a .dmp in minidumps (judging by the timestamp of the .dmp files versus when the power-offs actually occur). Some have created a .dmp, others have not.
3. On the memorytesting I used memtest86 (PassMark) not memtest86+. I don't know if they are totally different or not - sorry, as you can appreciate the names are quite simmilar and it is a bit confusing. Is this a problem? Should I use memtest86+
exclusively? I allowed for 2 passes. I can certainly leave it running longer next time.
I would just point out that I may be using incompatible memory as per my above post but I am not sure. Crucial claims PC2-6400 is "guaranteed" to work with my system, but the Dell manual only mentions PC2-5300. The RAM I have at the moment was labeled and sold as PC2-5300 but as per the above screenshot, it actually seems to be PC2-6400 (confirmed in the BIOS - speed reported is 800MHz). I have been using it for about 6 months with intermittent BSODs/crashes.
Re: XPS 710 and PC6400 DDR2 800MHz ram - XPS Club Forum - XPS Club - Dell Community
4. I will certainly use HD Tune as you suggest.
5. My malware/anti-virus remarks are in relation to this page
as suggested above. As you mention though I have just done a clean reinstall and have only been to this forum, the Dell website, Windows Update etc since. As such I will leave this to one side, although noting the remote possibility of BIOS level problems.
6. I will provide the information you have asked for forthwith.