Using 72pin, 70ns Parity memory in 3640 routers?

Unanswered Question
Jun 28th, 2007

I am upgrading a half dozen 3640's to 128MB RAM. From my searching, it appears the 3640 requires 60ns, Parity or NON-parity, 72pin EDO memory. Looking at Cisco web-site not clear on this.

I have installed some IBM 72pin, 70ns, Gold-lead, Parity memory in all four SIMM slots in my 3640. It boots up fine, in 64 bit, Parity mode! Am I at risk of damaging my router?

Another router booted fine using IBM 72pin, 60ns, Parity, Gold-lead EDO memory from an old IBM Aptiva computer. Again, is this a potential problem? Thanks so much for advice. Would hate to meltdown my new-found test lab!!!

I have this problem too.
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Paolo Bevilacqua Thu, 06/28/2007 - 08:13

No you don't risk to damage the router.

The only thing is, the slots used by cisco are of the tin type and would require tin-plated ram modules. With the gold-plated ones, you risk damage to due to corrosive reaction in the longer term. So it would be better to use tin-plated module.

I know a very reputable vendor that I can pass to you if you contact me to the address in my profile.

Hope this helps, please rate post if it does!

jamesd058 Thu, 06/28/2007 - 11:21

Thanks for the info and offer. As this is a test lab only I'll see how it goes. Appreciate it.


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