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Doc. No.
78-3915-01
Upgrading DRAM on the CIP2
Product Numbers: MEM-CIP-64M= and MEM-CIP-128M=
This publication contains procedures for upgrading dynamic random-access memory (DRAM)
single in-line memory modules (SIMMs) on the second-generation Channel Interface Processor
(CIP2).
Note
provider only.
Caution
can cause significant problems for other devices on the same channel as the CIP2. Mainframe
processors can, in some circumstances, be rendered inoperable due to system crashes caused by
improper cable handling. We strongly recommend that only Cisco-certified maintenance providers
connect and disconnect channel cables between the router and the mainframe, and perform
maintenance procedures on the CIP2.
Note
Second-Generation Channel Interface Processor (CIP2) Installation and Configuration, which ships
with the CIP2 and is available on the Cisco Connection Documentation, Enterprise Series CD-ROM,
on the Cisco Products disc.
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DRAM SIMMs must be removed or installed in the field by a Cisco-certified maintenance
Improper handling of the bus and tag and ESCON channel cables and interface adapters
For more complete information on the CIP2, refer to the configuration note
1
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Summary of Contents for Cisco MEM-CIP-64M
- Page 1 This publication contains procedures for upgrading dynamic random-access memory (DRAM) single in-line memory modules (SIMMs) on the second-generation Channel Interface Processor (CIP2). DRAM SIMMs must be removed or installed in the field by a Cisco-certified maintenance Note provider only. Improper handling of the bus and tag and ESCON channel cables and interface adapters Caution can cause significant problems for other devices on the same channel as the CIP2.
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Page 2: Document Contents
You need the following tools and parts to upgrade a CIP2. If you need additional equipment, contact a customer service representative for ordering information. • Number 2 Phillips or a 3/16-inch flat-blade screwdriver • DRAM upgrade products—MEM-CIP-64M= or MEM-CIP-128M= • ESD-preventive wrist strap or other device for preventing ESD damage 2 Upgrading DRAM on the CIP2... - Page 3 Upgrading DRAM on the CIP2 This section includes procedures to perform an upgrade of DRAM SIMMS on the CIP2. DRAM SIMMs must be removed or installed in the field by a Cisco-certified maintenance provider only. Caution Improper handling of the bus and tag and ESCON channel cables and interface adapters can cause significant problems for other devices on the same channel as the CIP2.
- Page 4 Upgrading DRAM on the CIP2 Disconnect the Y cable from each PCA and the ESCON cable from each ECA. (See Step 5 Figure 2.) Do not disconnect the V-type cables from the Y cable. To disconnect the Y cable from the PCA, it might be necessary to temporarily remove any strain relief used to support the V-type bus and tag cables, which are quite heavy.
- Page 5 Upgrading DRAM on the CIP2 To prevent overheating the chassis, if the interface processor slot will remain empty during Caution the following upgrade procedures, install an interface processor filler to keep dust out of the chassis and to maintain proper airflow through the interface processor compartment. Figure 3 CIP2 Removal and Replacement (Horizontal Orientation Shown) Interface processor...
- Page 6 DRAM by replacing the DRAM SIMMs on the CIP2. To upgrade the DRAM on a CIP2, use either MEM-CIP-64M(=) or MEM-CIP-128M(=). DRAM SIMMs must be upgraded or replaced in the field by a Cisco-certified maintenance provider only.
- Page 7 Upgrading DRAM on the CIP2 Remove the SIMM by pulling outward on the connectors to unlatch it, as shown in Step 5 Figure 5. Be careful not to break the holders on the SIMM connector. Carefully lift the SIMM out of the SIMM socket. Step 6 Figure 5 Removing and Replacing DRAM SIMMs...
- Page 8 Upgrading DRAM on the CIP2 Installing a CIP2 Follow these steps to install the CIP2 in the router: Attach an ESD-preventive wrist strap between you and the chassis. Step 1 Hold the CIP2 handle with one hand and placing your other hand under the carrier to Step 2 support the CIP2, guide it into the slot.
- Page 9 Upgrading DRAM on the CIP2 Place the select/bypass switch in select mode. (See Figure 7.) The select/bypass switch Step 8 marked S (for select mode) and B (for bypass mode) is located on the rear of the PCA connector. (See Figure 7.) The select/bypass switch is required to allow the cable to be separated from the PCA without “opening”...
- Page 10 Upgrading DRAM on the CIP2 Attaching the ESCON Cable to the Host Channel Following is the procedure for attaching the ECA to the host channel: If necessary or not already done, vary offline the host channel to which the ECA will be Step 1 attached.
- Page 11 If you need more general troubleshooting information, refer to the Troubleshooting Internetworking Systems publication. All of these publications are available on the Cisco Connection Documentation, Enterprise series CD-ROM, or as printed copies. If you are still unable to resolve the problem, refer to the note on the last page of this publication for information on obtaining technical assistance and support.
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