Does anyone know of any RAM testers or other ways to test 4027 and 4015 RAM? The Bugtrap I use to test 4116 can't do them and NeoLoc's RAM tester can't do them either. A fair number of games use this RAM type. Joe (joemagiera at Ameritech dot net) joemagiera@ameritech.net --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/
Hi Joe, Why not make an adapter socket or add a switch (or two)? The difference between the 4027 and 4116 is pin 13 which is /CS and A6 respectively. Hopefully the Bugtrap test is not as extensive as Flukes RAM test which looks for stuck address lines such as the none functioning A6 on 4027 adapter. I can't find 4015 easily, but same applies to it... John :-#)# On 2018/08/16 3:57 PM, Joe Magiera wrote:
Does anyone know of any RAM testers or other ways to test 4027 and 4015 RAM? The Bugtrap I use to test 4116 can't do them and NeoLoc's RAM tester can't do them either. A fair number of games use this RAM type.
Joe (joemagiera at Ameritech dot net)
joemagiera@ameritech.net
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I made a usb programmer for Eprom 2708 and i started to implement even ram test for sever one but i never completed the work (addressing tests should be implemented). I can release the source code (assembler Microchip PIC 18F4550) if anyone wants to finish the test routines for these types of triple-power RAM. NeoLock made also a nice ram tester but only for single power supply. maybe possible to made adapter for triple-power RAM. Changes to be made to the firmware would be minimal, it contains already all the correct pattern and address test. Piero (pieroandreini@vodafone.it)
Il giorno 17 ago 2018, alle ore 01:53, John Robertson <jrr@flippers.com> ha scritto:
Hi Joe,
Why not make an adapter socket or add a switch (or two)? The difference between the 4027 and 4116 is pin 13 which is /CS and A6 respectively. Hopefully the Bugtrap test is not as extensive as Flukes RAM test which looks for stuck address lines such as the none functioning A6 on 4027 adapter.
I can't find 4015 easily, but same applies to it...
John :-#)#
On 2018/08/16 3:57 PM, Joe Magiera wrote:
Does anyone know of any RAM testers or other ways to test 4027 and 4015 RAM? The Bugtrap I use to test 4116 can't do them and NeoLoc's RAM tester can't do them either. A fair number of games use this RAM type.
Joe (joemagiera at Ameritech dot net)
joemagiera@ameritech.net
--- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/
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NeoLoch's new Inquisitor testing system The 4116 DRAM blade uses our custom designed testing algorithm to provide accurate and fast testing of the following DRAM types: 4116 / 9016 / D416 4027 / 4096. -----Original Message----- From: Techtoolslist [mailto:techtoolslist-bounces@flippers.com] On Behalf Of Joe Magiera Sent: Thursday, August 16, 2018 6:58 PM To: 'Technical Tools Mail List' Subject: [Techtoolslist] RAM testers Does anyone know of any RAM testers or other ways to test 4027 and 4015 RAM? The Bugtrap I use to test 4116 can't do them and NeoLoc's RAM tester can't do them either. A fair number of games use this RAM type. Joe (joemagiera at Ameritech dot net) joemagiera@ameritech.net --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/
participants (4)
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Joe Magiera -
John Robertson -
Piero Andreini -
Tony htbs