User manual ASUS CUW-B

[. . . ] ® CUW-B Socket 370 Baby AT Intel® 810 Motherboard USER'S MANUAL USER'S NOTICE No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. ASUS PROVIDES THIS MANUAL "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT. Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing. [. . . ] An IRQ number is automatically assigned to PCI expansion cards after those used by Legacy and PnP ISA cards. In the PCI bus design, the BIOS automatically assigns an IRQ to a PCI slot that has a card in it that requires an IRQ. To install a PCI card, you need to set something called the INT (interrupt) assignment. Since all the PCI slots on this motherboard use an INTA #, be sure that the jumpers on your PCI cards are set to INT A. ASUS CUW-B User's Manual 29 3. HARDWARE SETUP 3. 7. 3 Assigning DMA Channels for ISA Cards Some ISA cards, both legacy and PnP, may also need to use a DMA (Direct Memory Access) channel. DMA assignments for this motherboard are handled the same way as the IRQ assignment process described earlier. To select a DMA channel, see PCI/ PNP ISA DMA Resource Exclusion in 4. 4. 3 PCI Configuration. NOTE: The onboard audio by default uses DMA1. IMPORTANT: To avoid conflicts, reserve the necessary IRQs and DMAs for legacy ISA cards (see PCI/PNP ISA IRQ Resource Exclusion and PCI/PNP DMA IRQ Resource Exclusion in 4. 4. 3 PCI Configuration). Choose Yes in IRQ xx Used By ISA and DMA x Used By ISA for those IRQs and DMAs you want to reserve). 3. 7. 4 Audio Modem Riser (AMR) Slot This connector supports a specially designed audio and/or modem card called an AMR. Main processing is done through software and controlled by the motherboard's Intel I/ O Controller Hub (ICH). This provides an upgradeable audio and/or modem solution at an incredibly low cost. There are two types of AMR, one defined as primary and another defined as secondary. This motherboard uses the primary channel so that a secondary AMR can coexist without the need to disable the onboard CODEC. The motherboard's onboard CODEC must be disabled when using a primary AMR. NOTE: An AMR is not included with this motherboard. 3. H/W SETUP Expansion Cards 30 CUW-B Audio Modem Riser (AMR) Connector 01 ® CUW-B ASUS CUW-B User's Manual 3. HARDWARE SETUP 3. 8 External Connectors WARNING!Some pins are used for connectors or power sources. These are clearly distinguished from jumpers in the Motherboard Layout. Placing jumper caps over these connector pins will cause damage to your motherboard. IMPORTANT: Ribbon cables should always be connected with the red stripe to Pin 1 on the connectors. [. . . ] If your motherboard has an audio codec and no PCI audio chipset onboard, you may use the secondary MR; otherwise, you should use the primary MR. Top: Codec PHONE Bottom: LINE Crystal 7. 2. 3 Hardware Installation Procedure 1. Open the computer chassis and remove the metal plate on the AMR expansion slot. Carefully align the MR card's connector to the AMR slot and press firmly. Secure the MR card onto the chassis with the screw removed in step 2. [. . . ]