Dell 6100, 200 manual Install the new RTC chip, RTC Chip

the RTC chip in NVRAM is erased each time the com- puter is turned off. Therefore, the system configuration information must be reentered and the options reset each time the system boots until the RTC chip is replaced.

To remove the RTC chip, follow these steps:

1.If possible, enter the system setup program and make a printed copy of the system setup screens.

See Chapter 4, “Using the System Setup Program,” in the system User’s Guide for instructions.

2.Remove the left computer cover.

See “Removing the Computer Covers” in Chapter 7.

CAUTION: See “Protecting Against Electro- static Discharge” in the safety instructions at the front of this guide.

3.Cut the cable tie that secures the chip to the sys- tem board.

NOTE: The cable tie binding the chip to the system board was necessary for shipping purposes. You will not need to replace the tie after replacing the RTC chip.

4.Remove the RTC chip.

WARNING: If the system has been running, any installed microprocessor and heat sink on the modules will be hot. To avoid the possibility of a burn, be careful when removing or install- ing system board components that are located near the microprocessors.

WARNING: Replace the RTC chip only with the same or equivalent type recommended by the equipment manufacturer to avoid the dan- ger of explosion. Discard the RTC chip according to the manufacturer’s instructions.

Pry the RTC chip out of its socket an integrated cir- cuit (IC) removal tool.

5.Align the pin-1 corners of the RTC chip and the socket (see Figure 8-13).

NOTE: Identifying the pin-1 corners is critical to positioning the clock correctly.

Identify the pin-1 corner of the RTC chip by locating the small dot in one corner on the top of the chip. The pin-1 corner of the socket is on the side with a notch.

6.Install the new RTC chip.

With the pin-1 corners of the socket and chip aligned, set the chip lightly in the socket and make sure all pins are matched with the correct holes in the socket. When the chip is positioned correctly, press down until the chip is firmly in the socket.

CAUTION: When placing the RTC chip in the socket, be sure that all of the pins on the chip go into the corresponding holes of the socket. Be careful not to bend the pins.

RTC chip

RTC

socket

pin-1 corners

notch

Figure 8-13. RTC Chip

Installing System Board Options 8-15