IBM 5x86c 100HF - Techist - Tech Forum

Go Back   Techist - Tech Forum > Computer Hardware > Overclocking and Modding
Thread Tools Display Modes
Old 10-05-2015, 08:12 PM   #1 (permalink)
Ultra Techie
Join Date: Jun 2005
Location: Spaceballs Mega-Maid
Posts: 783
Send a message via AIM to RichM499 Send a message via Yahoo to RichM499
Post IBM 5x86c 100HF

The chip in the title is used for overclocking purposes. This is an uncommon/rare chip, and any operation over 100MHz is considered good, with the most remarkable CPUs being AM5x86 and Cyrix 5x86gp. This IBM chip seems based on the Cyrix 5x86, which is good because it contains extra register bits I can use to emulate MMX instructions with Glide. In any case, this is a remarkable processor.

I have thus far succeeded at POSTing with 133Mhz. I believe I could boot with a little more voltage.
Operational frequencies: 50Mhz 66Mhz 100Mhz 120Mhz 133Mhz (so far)

I'll keep you updated. The board is dodgy and I think I need to reflow some of the points. I plan to install Windows 98 with it, or 95.


I was unable to find a start-up disk to use the CDROM drivers and load an OS like Windows XP, 2000, or 98. I was fortunate enough to find a 1.3GB Quantum hard disk with Windows 98 partially installed on it. Luckily, it's past the point where it needs a disk! Hopefully I can get it installed and running soon. I am unable to use a mouse unless I rig up a serial to ps2 adapter by splicing the cables. Do any of you know of the correct way to do this? Any help is appreciated. Aside from the mouse, I should be up and running in 12 minutes according to the Windows 98 Setup. I was only able to get the board to run with 16MB ram, which is not so good. Wish me luck!
RichM499 is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
**I Want To Over Clock my "IBM M Pro" Computer but How?** 89AccordLXI666 Overclocking and Modding 7 01-14-2004 06:02 PM
IBM x330 Sever / BOOT DISK magnum Microsoft Windows and Software 4 08-25-2003 08:16 AM
bad IBM HDD? danthegimp Monitors, Printers and Peripherals 11 03-26-2003 12:08 PM
Making a Network boot disk for an IBM xseries 340 server with dual IBM Gigabit NIC's dconetta Microsoft Windows and Software 0 01-09-2003 02:12 PM
ibm web camera rcsgtown Microsoft Windows and Software 2 10-10-2002 08:48 AM

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 06:56 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.