TechTool Pro 2.5

The finest utility for your system, files, disk and hardware tests.
Some of the included test & repair suites are:

 * Memory RAM (Full memory & Free memory)
 * Memory VRAM (display & video card integrated memory)
 * Memory ROM (L2 and L3 if present)
 * Serial Ports (any serial port)
 * Sound
 * File Info
 * BundleBits
 * and several others...

DL#1: v2.5.1 on floppy disk image (download includes 2.5.3 Universal
Updater, as well as the 2.5.3->2.5.4 Updater)
DL#2: v2.5.1 on CD (includes the bootable volumes, installer,
documentation and more)
DL#3: v2.5.3 Universal Updater

Serial Number: 313766014212

Other Pro versions:

 * [1.0.x][1]
 * [2.1.1][2]
 * [3.0.1][3]
 * [3.0.3][4]
 * [3.0.6 & 3.0.9][5]
 * [4.0.2, 4.0.4, & 4.1.2][6]
 * [4.6.1][7]

Compatibility
Architecture: 68k PPC

Any 68k or PPC Macintosh:
? Macintosh Plus or above
? System 7.0 or later
? 4 MB of RAM minimum
? Hard disk drive

Not tested under emulation.

For Mac OS 8.6 & 9.x, I recommend you to use version 3 ([3.0.1][3] |
[3.0.6][5]).

  [1]: http://macintoshgarden.org/apps/techtool-pro-10x
  [2]: http://macintoshgarden.org/apps/techtool-pro-211
  [3]: http://macintoshgarden.org/apps/techtool-pro-301
  [4]: http://macintoshgarden.org/apps/techtool-pro-303
  [5]: http://macintoshgarden.org/apps/techtool-pro-306
  [6]: http://macintoshgarden.org/apps/techtool-pro-402
  [7]: http://macintoshgarden.org/apps/techtool-pro-461-ppc-g3g4g5