Upgrading the Type 1 Complex

486 Interposers and Upgrades

Intel DX4-100 Upgrade

Intel DX4-100 Upgrade

This is a *TRUE* 50 MHz Type 1 complex, which originally was designed to run a 486DX-50 and came as an option from IBM. There are not likely to be many samples of these units around; Peter acquired this complex sans CPU from Charles Lasitter by way of our Ardent-guy Louis Ohland. The FRU on the complex is 92F0048 and it is IBM Option item 6450757. Keep in mind that this is a Type 1 complex designed to run at 50 MHz!

Since the complex did not have the original 486DX-50 processor when it came into Peter's possession, Peter opted to install a replacement processor that would add some nice performance. This was done by installing a 486DX4-100 mounted atop a Reply Co. Interposer set to 2X clocking. Not satisfied with any wimpy heatsink setups, Peter added impressive cooling to the processor by slicing a Pentium-II heatsink into two (50-50 - right in the middle) and clipped one half of it to the CPU using the original P-II brackets. Peter says that in order to "make things better (looking)" he even installed the oversized P-II cooling fan on top.

Take a gander at this impressive Type 1 complex

Content created and/or collected by:
Louis F. Ohland, Peter H. Wendt, David L. Beem, William R. Walsh, Tatsuo Sunagawa, Tomáš Slavotínek, Jim Shorney, Tim N. Clarke, Kevin Bowling, and many others.

Ardent Tool of Capitalism is maintained by Tomáš Slavotínek.
Last update: 20 Jan 2024 - Changelog | About | Legal & Contact