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09-02-2021, 06:59 PM
Post: #6
Yes , I have tried to change but I have no results... with the second ram I have a strange result of 40 read in all of the memory program step... but I suppose that there are not perfect contact between chip and socket ( one row of pin is cutted and there aren't a firm stop of chip in socket) I'll try to solder the chip by wire for verify that the chip is broken and then I'll order a ultra low profile socket ...

(09-02-2021 03:42 AM)dmh Wrote:  I have a 25 with RAM not working and someone on the forum suggested reflowing the solder on the RAM chip (haven't tried).

The 25 is pretty common too so another RAM chip from a donor is probably a good option too.
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Messages In This Thread
HP25 RAM - Alexanderpentagon - 09-01-2021, 07:44 PM
RE: HP25 RAM - Dave Frederickson - 09-02-2021, 12:29 AM
RE: HP25 RAM - teenix - 09-02-2021, 01:42 AM
RE: HP25 RAM - Alexanderpentagon - 09-02-2021, 05:35 AM
RE: HP25 RAM - dmh - 09-02-2021, 03:42 AM
RE: HP25 RAM - Alexanderpentagon - 09-02-2021 06:59 PM

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