User manual ACER ALTOS S300

[. . . ] Wear a wrist grounding strap before handling electronic components. Wrist grounding straps are available at most electronic component stores. Do not attempt the procedures described in the following sections unless you are a qualified technician. 1. 6 Memory Upgrade The system board comes with eight 72-pin SIMM sockets that support 4-MB and 16-MB single-density SIMMs as well as 8-MB and 32-MB double-density SIMMs for a total system memory of 256-MB. The sockets support both the fast page mode and EDO 60 ns SIMMs. See Table 1-3 for a list of some possible memory configurations. 1. 6. 1 Rules for Adding Memory · · · Use only one type of SIMM in a given bank. [. . . ] You may use the memory banks (Bank0 ~ Bank3) in any order. For example, for a total memory of 16 MB, install two 8-MB SIMMs in a bank. You can not use a 16-MB SIMM alone for a 16-MB memory. System Board 1-7 1. 6. 2 Table 1-3 Bank0 S1 8 MB 16 MB 32 MB 64 MB 8 MB 8 MB 16 MB 64 MB 8 MB 8 MB 8 MB 8 MB 8 MB 8 MB 16 MB 32 MB 8 MB 16 MB 32 MB 64 MB Memory Configurations Memory Configurations Bank1 S2 8 MB 16 MB 32 MB 64 MB 8 MB 8 MB 16 MB 64 MB 8 MB 8 MB 8 MB 8 MB 8 MB 8 MB 16 MB 32 MB 8 MB 16 MB 32 MB 64 MB 16 MB 32 MB 32 MB 32 MB 16 MB 16 MB 16 MB 16 MB 8 MB 8 MB 16 MB 32 MB 8 MB 16 MB 32 MB 64 MB 16 MB 32 MB 32 MB 32 MB 16 MB 16 MB 16 MB 16 MB 8 MB 8 MB 16 MB 32 MB 8 MB 16 MB 32 MB 64 MB 16 MB 32 MB 32 MB 16 MB 32 MB 32 MB 64 MB 8 MB 16 MB 32 MB 64 MB 16 MB 32 MB 32 MB 16 MB 32 MB 32 MB 64 MB 8 MB 16 MB 32 MB 64 MB 64 MB 16 MB 32 MB 32 MB 64 MB 8 MB 16 MB 32 MB 64 MB 64 MB 16 MB 32 MB 32 MB 64 MB 8 MB 16 MB 32 MB 64 MB S3 S4 S5 Bank2 S6 S7 Bank3 S8 Total Memory 16 MB 32 MB 64 MB 128 MB 48 MB 80 MB 96 MB 192 MB 48 MB 80 MB 112 MB 240 MB 96 MB 160 MB 192 MB 384 MB 64 MB 128 MB 256 MB 512 MB The above configurations are only some of the available memory combinations. You can use other combinations as long as you follow the rules for upgrading memory in section 1. 6. 1. 1-8 User's Guide 1. 6. 3 Installing a SIMM Follow these steps to install a SIMM: 1. Carefully slip a SIMM at a 45° angle into a socket making sure that the curved edge indicating the pin 1 of the SIMM matches pin 1 of the socket. A SIMM fits only in one direction. If you slip in a SIMM but would not completely fit, you may have inserted it the wrong way. Reverse the orientation of the SIMM. 2. Gently push the SIMM to a vertical position until the pegs of the socket slip into the holes on the SIMM, and the holding clips lock the SIMM into position. The SIMM should be at a 90° angle when installed. 1 2 Peg Pin 1 Indicator (curved edge) Hole Figure 1-3 Installing a SIMM System Board 1-9 1. 6. 4 Removing a SIMM Follow these steps to remove a SIMM: 1. Press the holding clips on both sides of the SIMM outward to release it. Pull the SIMM out of the socket. Holding Clip 1 3 2 Figure 1-4 Removing a SIMM 1-10 User's Guide 1. 6. 5 Reconfiguring the System You must enter Setup after installing or removing SIMMs to reconfigure the system. Gently insert the RDM module into CN6 and CN7. Do not force it into to the connectors. CN6 CN7 Figure 1-6 System Board Installing the RDM Module 1-15 3. 4. Insert the cable end with the RDM button into the slot on the housing front panel. Attach the other end of the RDM cable to CN13 (pins 5-6, 11-12) on the system board. Note that the covered pin of the cable connector does not connect to any pin. RDM Cable CN13 12 7 1 Figure 1-7 Connecting the RDM Cable Refer to the RDM User's Guide for detailed instructions on the RDM installation. 1-16 User's Guide 1. 11 Error Messages Do not continue using the computer if you receive an error message of any type. Note the message and take corrective action. This section explains the different types of error messages and corresponding corrective measures. There are two general types of error messages: · · Software System 1. 11. 1 Software Error Messages Software error messages are returned by your operating system or application. These messages typically occur after you boot the operating system or when you run your applications. If you receive this type of message, consult your application or operating system manual for help. 1. 11. 2 System Error Messages A system error message indicates a problem with the computer itself. A message of this type normally appears during the power-on selftest, before the operating system prompt appears. [. . . ] Table 1-4 lists the system error messages. System Board 1-17 Table 1-4 System Error Messages Message Action Replace the RTC chip or contact your dealer. Check the RTC chip and the necessary jumper. If the battery is still good, run Setup. Check and connect the control cable to the diskette controller. [. . . ]