Routers and RAM

in CCNA & CCENT
So I'm asking because around those Internets I'm finding conflicting information- some sources say that IOS images that call for more RAM can be made to boot with less RAM than Cisco calls for, but when I attempted it I had some errors.
Basically I'm trying to get IPv6 support working on some 2600-series (non-XM) Routers with 48MB RAM and 16MB Flash. Given that they have 48MB I could probably order 2x 32MB 100pin 5V EDO SODIMMs, but just looking for anyone else's experience. All the IPv6 and OSPFv3 capable IOS images call for 64MB as far as Cisco calls it.
Basically I'm trying to get IPv6 support working on some 2600-series (non-XM) Routers with 48MB RAM and 16MB Flash. Given that they have 48MB I could probably order 2x 32MB 100pin 5V EDO SODIMMs, but just looking for anyone else's experience. All the IPv6 and OSPFv3 capable IOS images call for 64MB as far as Cisco calls it.
Comments
BTW, there are a few folks selling memory on eBay. Make sure to click "US Only" when searching or you'll get results from China mixed in. I've ordered from a guy in South Carolina many times with no issues.
Upgrading System Memory, Internal Flash, and Boot ROM in Cisco 2600 Series Routers - Cisco
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