[volt-nuts] HP 3458A Mem test 1 hight. How do you read 32K memory chips?

[acbern at gmx.de]

the easy way to read nvram through usb is a usb-programmer that has your ram in its list of supported devices:-)

this will not solve your problem though. if you reboot the unit after the first error messsage, amd the problem still exists, it is probably not with the nvram. then it could be things like bus drive, chip select logic... 
ne way to avoid spending 3k is to bus the cpu board, this is cheaper.



> Gesendet: Mittwoch, 20. August 2014 um 22:37 Uhr
> Von: "John Phillips" <john.phillips0 at gmail.com>
> An: "Discussion of precise voltage measurement" <volt-nuts at febo.com>
> Betreff: Re: [volt-nuts] HP 3458A Mem test 1 hight. How do you read 32K memory chips?
>
> Yes they are DEI220Y-150 and DSI230Y-150
> On Aug 20, 2014 4:09 PM, "J. L. Trantham" <jltran at att.net> wrote:
> 
> > John,
> >
> > Which chips are these?  Dallas NVRAM's?
> >
> > Do you have a part number?  They can probably be read and programmed with
> > the appropriate chip programmer.
> >
> > Joe
> >
> >
> > -----Original Message-----
> > From: volt-nuts-bounces at febo.com [mailto:volt-nuts-bounces at febo.com] On
> > Behalf Of John Phillips
> > Sent: Wednesday, August 20, 2014 3:54 PM
> > To: Discussion of precise voltage measurement
> > Subject: [volt-nuts] HP 3458A Mem test 1 hight. How do you read 32K memory
> > chips?
> >
> > Hi,
> > I have removed my 32k memory chips form my 3458A. Doe anyone have an easy
> > way to connect them to a windows computer. USB would be my preferred
> > connection to a 28 and 24  pin socket. I would like to be able to read and
> > write to the chips to validate the data.
> > I have replace the chips and still get Mem test 1 High on start up.
> > ​I really do not want to spend close to $3000 for KeySight to fix this.​
> >
> > --
> >
> > *John Phillips*
> > _______________________________________________
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