1010 Motherboard CPU Upgrade

This motherboard can accommodate the following CPUs:

• Intel® Pentium™III processor operating from 450 to 500 MHz (100MHz front-side bus).
• Intel® Pentium™II processor operating at 350, 400 or 450 MHz (100MHz front-side bus).
• Intel® Pentium™II processor operating at 266, 300 or 333 MHz (66MHz front-side bus).
• Intel® Celeron™ processor operating from 266 to 450 MHz.

Single Edge Contact (SEC) cartridge
Uses the SLOT1 CPU socket
Not keyboard switchable.
Disable cache to slow down the system.

Jumper setting information can be found in the 1010 Motherboard Jumpers section.

Figure 1
Figure 1 Legend
A	SEC Cartridge with Example Heatsink Attached
B	SEC Cartridge Retention Mechanism
C	Heatsink Support Base
D	Heatsink Support Top Bar
E	Right Latch Arm
F	Left Latch Arm

CPU Removal & Insertion (Figure 1)

Note: Observe Electro Static Discharge (ESD) precautions.

The steps for removal of the SEC Cartridge are as follows:

1. Ensure that the system is powered off, but still plugged in.
2. If the SEC cartridge (A) has a full-size heatsink mounted on it, remove the Heatsink Support Top Bar (D) from the Heatsink Support Base (C) by squeezing together the tabs at either end of the bar and pulling the bar away from the SEC cartridge.
3. If the heat sink has a fan mounted on it, disconnect the fan power supply from the motherboard.
4. Remove the SEC from the SEC Cartridge Retention Mechanism (B) by squeezing together the left and right latch arms (E & F) at the end of the SEC cartridge, and pulling the cartridge straight up.