johnk@pro-pac.CTS.COM (John Krause) (06/26/88)
Hello I have an Amiga 2000 and would like to get a little more speed out of
it. I have not opened it up yet to look at the exact motorola number on the
CPU, but I am interested in upgrading the 68000. However I need some more
info. What are the pros and cons to putting in a 68010? I have the latest
Jameco catalog and they list several 68000 series chips.
MC68000L8
MC68000L10
MC68000P12
What are the differences between L and P, and 8, 10, 12?
Which chip is the one used in the 2000?
Also listed in this catalog is MC68010L10, is this a direct replacement for
the CPU in the 2000? Will all the software that runs under the 68000 with
WB1.2 run with the 68010?
BTW I have the mechanical ability to do the swap, but I don't have the
technical knowledge of these chips. FYI the MC68010L10 is listed for $29.95.
One other chip that caught my eye was an MC68008L8, what is it?
Thanks in advance!
Mahalo and Aloha
John
UUCP: crash!pnet01!pro-simasd!pro-pac!johnk
U.S. Mail: John C. Krause 92-982 Kanehoa Loop, Ewa Beach, HI 96707smaug@eneevax.UUCP (Kurt J. Lidl) (06/27/88)
In article <3154@crash.cts.com> johnk@pro-pac.CTS.COM (John Krause) writes: >Hello I have an Amiga 2000 and would like to get a little more speed out of >it. I have not opened it up yet to look at the exact motorola number on the >CPU, but I am interested in upgrading the 68000. However I need some more >info. What are the pros and cons to putting in a 68010? I have the latest >Jameco catalog and they list several 68000 series chips. I just did this upgrade (a 68010) about a week ago. Here is what I can tell you about it. You want a 68010 chip, with a suffix of L8 ro L10 (letter may vary). This specifies the clock speed at which the chip has tested up to. For a standard b2000, the the L8 chip is plenty fast enough (the Amiga run ~7.14Mhz). The 68010 is the pin-exact replacement for the 68000. [stuff deleted about which chip to use]> >Will all the software that runs under the 68000 with >WB1.2 run with the 68010? Unfortunately, no. There is a thread on the newsgroup relating the problems people (me amoung others) have had with specific programs and with which chips. I have tried to save these messages with thehope of summerizing to the net, but only a few have made it here, where comp.sys.amiga.tech does not yet dwell :-(. At any rate, most programs DO work correctly. Also, some of the amiga luminaries on the groups (dillon, etc) have posted things about the nasty things that the Greenhills compiler did/does to AmigaDOS projects (from my limited knowledge, I believe the Greenhills compiler runs on a SUN and produces wonderfully optimized code!). >BTW I have the mechanical ability to do the swap, but I don't have the >technical knowledge of these chips. FYI the MC68010L10 is listed for $29.95. >One other chip that caught my eye was an MC68008L8, what is it? The 68008 is a 68000 in a slightly different form - it has a 8 bit data bus, which is great for those who bread-board their own - but NOT what you want to stick in your Amiga. >Thanks in advance! > John -- ================================================================== == Kurt J. Lidl (smaug@eneevax.umd.edu) (301)454-6849 == == UUCP: [seismo,allegra]!umcp-cs!eneevax!smaug == ========"It's after 3am, no point in going to sleep now..."=======
knurlin@trwspf.TRW.COM (Scott Karlin) (06/28/88)
In article <3154@crash.cts.com> johnk@pro-pac.CTS.COM (John Krause) writes: >What are the pros and cons to putting in a 68010? The speed increase will probably only average about 5% or so. Some programs will not work, so for only 5% increase I wouldn't make the modification. That way when something doesn't work there's one less thing to worry about. >Jameco catalog and they list several 68000 series chips. > >MC68000L8, MC68000L10, MC68000P12 >What are the differences between L and P, and 8, 10, 12? L means ceramic package, P means plastic. 8, 10, & 12 mean 8 MHz, 10 MHz, & 12.5MHz respectively. >Which chip is the one used in the 2000? The Amiga 68000 runs at just over 7 MHz, so the 8 MHz version will probably be the cheapest one you'll find. Also, you may use either the L or P version. >Thanks in advance! You're welcome. > Mahalo and Aloha > John -- -- Scott Karlin TRW, Bldg O2-1761, One Space Park, Redondo Beach, CA 90278 USENET: knurlin@trwspf.trw.com Phone: (213) 535-3785 {sdcrdcf, scgvaxd, ucbvax}!trwrb!trwspf!knurlin