Changes
/* Note */
'''NOTE:''' All versions of [http://www.old-computers.com/museum/computer.asp?st=1&c=84 CPC 464] keyboards including Arnold 1 (according to [http://genesis8.free.fr/amstrad/faq/amstrad.php#A comp.sys.amstrad.8bit FAQ]) version with big "AMSTRAD" letters printed onto the keyboard, like the one shown on the [http://www.old-computers.com/museum/photos/s_amstrad_464_inside1.jpg photo] - #'''12''': 32 Kb ROM memory containing the operating system and Locomotive Basic. Also with the "[http://cpctech.cpc-live.com/docs/costdown.html Cost-Down]" version as well doesn't have a socket to remove and replace Operating System ROM chips, instead all the legs are soldiered on and its impossible to remote it straight away, unless you know how to de-soldier - 31/6/05.<BR>
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* B. Simply exchange your CPC 464 keyboard to Amstrad Specialist ([https://web.archive.org/web/20100201160217/http://www.midnight.uk.com:80/merline/ Arthur Cook]) for another CPC 464 keyboard with CPC 6128 ROM chip fitted (That's what I did with [[Computer_Collection_GalleryUser:Jonathanen#17th_June_2000.2A_-_expanded_to_CPC_6128_spec._.2882821.29|mine]] on Thursday 12th Oct 2000, while I was rushing to get home from Worthing and that time, I didn't know how to replace Operating System ROMs) or ask him to do it for you and paid for it, of course. <BR>
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* Unexpanded CPC 464 without CPC 6128 OS/BASIC ROM installed, having only both DDI-1 3" & 3.5" external disc drives connected.
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To do that, you must remove two screws first, open the cover, carefully remove the [[AMSDOS]] ROM chip with "AMSTRAD 40009" printed on top of it and replace it with [[ParaDOS]] ROM. Then put the cover back on and put the two screws back on. <BR>
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* B. Leave the [[AMSDOS]] / CPM bootstrap ROM inside the [[Media:Gerald_DDI-1_MF0004B.jpg|disc interface]] (if you want to use DR. LOGO 2 & 3 on upgraded CPC 464) and put [[ParaDOS]] ROM inside the [[Rombo_Rombox|Rombo ROMBOX]] with other ROMS (as shown in [[Expanding_from_CPC_464_to_CPC_6128_Spec#Step_3|step 3]]).
This idea originally comes from [http://www.obsoletecomputermuseum.org/amstrad/ David Cantrell's CPC 464] at [http://www.obsoletecomputermuseum.org Obsolete Computer Museum] but he didn't write out the instructions how to do it like I did. Its took me months of research to work out how it works on my own CPC 464 one by one and writing it out on rough paper, after I have looked at his web site for the first time and thinking that "Wow! That's what I always wanted on my CPC 464" while I was searching for Amstrad CPC 464 Specs on Internet. Now its here on this web site and I'm very proud that it works perfectly on my expanded CPC 464.<BR>
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[[Image:CPC46426128_dualROM.JPG|thumb|600px|centre|Another upgraded Amstrad CPC 464 except with dual Amstrad CPC 464 & CPC 6128 OS/BASIC ROM Chips fitted inside older CPC 464 keyboard, a 464 / 6128 Mode switch on left hand side and 2 x 3" FD-1 drives (DDI-1) - purchased from eBay on 4th March 2012. Both PARADOS ROM replaced inside disc interface & Dk'tronics 64K RAM pack (SMD version) wasn't included in the part of the package and it was purchased separately.]] = Pictures = <BRgallery caption="Archives"> Image:AmstradAction004--074.jpg|AA Issue 4 - Page 74Image:AmstradAction004--075.jpg|AA Issue 4 - Page 75Image:AmstradAction030-26.jpg|AA Issue 30 - Page 26Image:AmstradAction046-16.jpg|AA Issue 46 - Page 16Image:AmstradAction046-17.jpg|AA Issue 46 - Page 17 </gallery>
= Links =
* [httphttps://www.retrocomputers.euonline/2012/06/25/amstrad-cpc464-upgraded-to-a-cpc6128-how-to/ How to convert a Amstrad CPC464 into a CPC6128| Retro Computers]<BR>* [https://www. retrocomputers.online/2012/06/how-to-install-parados-into-the-amstrad-dd-1-disk-interface/ How to install PARADOS into the Amstrad DDI-1 disk interface | Retro Computers]<BR>
* [http://www.eightbitmagazine.com/cpcoxygen/magazine/01/super464/super464.htm Super 464 | CPC Oxygen]<BR>
* [http://www.freetimeweb.nl/home/computer/cpc/cpc_464_extended_uk.html THE AMSTRAD / SCHNEIDER CPC EXTENDED]<BR>
* [http://www.theregister.co.uk/Print/2014/02/12/archaeologic_amstrad_cpc_464/ You’re NOT fired: The story of Amstrad’s amazing CPC 464 • The Register]<BR>
* [http://www.retrogamer.net/profiles/hardware/amstrad-cpc-6128/ Amstrad CPC 6128 | Retro Gamer]<BR>
* [[Amstrad Action]] ([[Amstrad_Action,_Issue_30,_Mar_1988|Issue 30, March 1988]]) - [[:File:AmstradAction030-26.jpg|page 26]]
[[Category:Hardware]]
