SiSoftware Sandra Professional 2005 SR2a - will give you most detailed information about your computer's hardware.
SiSoftware Sandra Professional 2005's fetures:
- tests and information about computer's systems
- tests with multi-processors support - up to 64 processors
- Plug-n-Play support
- DMI/SMBIOS, AGP, PCI, PCI64/66, VESA, EISA, MCA, PCMCIA, CardBus support
- information about DirectX (DirectDraw, Direct 3D, DSound, DMusic, DPlay, DInput), OpenGL
- determining new processors including Intel Pentium 4, Celeron, Xeon 4; VIA C3; AMD Athlon 4/XP/MP, Duron XP/MP
and much more

Download SiSoftware Sandra Professional 2005 SR2a

SiSoftware Sandra 2005.SR1 (10.50) - one of the best tools for viewing different information about hardware and diagnose it. Sandra 2005 shows complete information about motherboard, CPU, APM and ACPI, video system, memory, PCI, AGP, ports, disks, keyboard, mouse etc.
Download SiSoftware Sandra 2005.SR1 (10.50) here

Everest 2.00.251 - tool for viewing detailed information about computer hardware including information about CPU, motherboard, memory etc. Everest supports connecting to a remote server (with monitoring) and reports generation.
Download Everest 2.00.251 here

Fraps 2.5.0 - new version of the popular utility for FPS (frames per second) calculating in any OpenGL and Direct3D applications, for example, in games.
Fraps 2.5.0 also allows to make screen-shots and video-movies.
Download Fraps 2.5.0 here

TaskInfo 2003 v6.0.0.120 - a very useful tool for monitoring processes of your system. TaskInfo 2003 shows everything: memory usage, dynamics, processes, libraries - everything.
Download TaskInfo 2003 v6.0.0.120 here

Memtest86 3.2 - is a tool for performing RAM tests. The testing itself runs from a boot floppy/CD. After booting you can run tests endlessly (needs at least half an hour).
Download Memtest86 3.2 here
Download Memtest86 3.2 iso image zip here
Download Memtest86 3.2 iso image gz here

Central Brain Identifier 7.3.0.6.1111 - new version of very useful utility for getting detailed information about AMD processors
Download Central Brain Identifier 7.3.0.6.1111 here

Central Brain Identifier - great utility for viewing detailed information about AMD processors.
Download Central Brain Identifier 7.3.0.6.1101 here

Everest Home 1.50.184 (pro edition, home edition, full) - program for computer hardware diagnostics and testing, and also their tuning for optimal work.

Fraps 2.3.3 - is a small program for FPS (frames per second, current value will be shown in the corner of the screen) monitoring in programs/games, which use DirectX or OpenGL. Allows to make screen-shots and determine average FPS between 2 points. In the new version memory working and changing screen resolution etc bugs ewere fixed.