Vax 6000-430 upgrade to 6000-620

----- Original Message ----- From: "Antonio Carlini" <arcarlini(a)iee.org> To: <cctalk(a)classiccmp.org> Sent: Thursday, May 08, 2003 6:14 AM Subject: RE: Vax 6000-430 upgrade to 6000-620 Further: That manual gives the full upgrade procedure to install an XMI-2 card cage, which includes changing regulators and card cages etc etc. It points to a simpler process in manual EK-650EB-UP-002 Vax 6000: Installing Model 500 Processors. This is the upgrade that uses the T2019. It's also online. There are some limitations. Not more than 12 XMI cards and not more than 4 cpus. Some other cards won't work in this configuration and require the full backplane and psu upgrade. Unfortunately, it's also revealed that there is a bus bar cable that connects the 5V rail to the T2019 and supplies the 3.3v generated by it to the bus. I don't have this. However it also mentions that some 300 & 400 series machines have 3.3v capability and only require the removal of a 3.3v inhibit cable. I will investigate and see whether any of my 6000 chassis are configured this way, if so, I may have a work around as this removes the need to install the T2019 regulator board. There are some compatiblility issues with memory and some other cards. MS62 RAM will not work, it requires MS65 or better. I have a mixed bag of memory modules so I can probably sort something out. There is also mention of a firmware upgrade, but I'll cross that bridge when I get to it. Thanks for your help. Cheers Geoff in Oz