I successfully replaced a WP51B1 with a Sparc 5, making it a WP51B, without in issues. If I remember correctly the main differences between a 4 and 5 was the processor speed and max. amount of memory on the motherboard. Ken Moore Celanese=20 Enoree Plant=20 -----Original Message----- From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] On Behalf Of Rarden, Tim Sent: Thursday, September 13, 2007 1:00 PM To: foxboro@xxxxxxxxxxxxx Subject: [foxboro] AW51B1 SPARCstattion 4 vs. SPARCstation 5 All, Have an AW51B1 that by looking at the Sun P/N and doing some research have found that it is a Sun SPARCstation 4. =20 Question: Can I replace the SPARCstation 4 with a SPARCstation 5? I have found a SS5 to purchase but may need to do some more looking to purchase a SS4 for replacement. =20 Best Regards, =20 Tim Rarden Process Control Engineer SMART PAPERS HOLDINGS LLC "You're Brilliant. We're SMART. Imagine the Possibilities" 601 N. B Street Hamilton, OH 45013 (Direct) 513-869-5278 (Cell) 513-240-6680 =20 =20 =20 _______________________________________________________________________ This mailing list is neither sponsored nor endorsed by Invensys Process Systems (formerly The Foxboro Company). Use the info you obtain here at your own risks. Read http://www.thecassandraproject.org/disclaimer.html =20 foxboro mailing list: //www.freelists.org/list/foxboro to subscribe: = mailto:foxboro-request@xxxxxxxxxxxxx?subject=3Djoin to unsubscribe: = mailto:foxboro-request@xxxxxxxxxxxxx?subject=3Dleave =20 _______________________________________________________________________ This mailing list is neither sponsored nor endorsed by Invensys Process Systems (formerly The Foxboro Company). Use the info you obtain here at your own risks. Read http://www.thecassandraproject.org/disclaimer.html foxboro mailing list: //www.freelists.org/list/foxboro to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave