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Author Topic: Tektronix TDS7104 Sdram Memory Modules  (Read 1214 times)

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Offline Johnny10Topic starter

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Tektronix TDS7104 Sdram Memory Modules
« on: December 30, 2019, 03:20:27 pm »
I have my TDS7104 open for Cmos battery change, what a PITA, I want to upgrade memory amount but I am confused about specs of modules.

I have done this in another unit a few years back and can't remember what I learned.
Some modules only show half of installed memory if they are wrong type.

The present memory (in Pic)is marked NEC PC100-322-620 168 Pin.

I have found PC100-222-620 256MB memory module that looks similar with that space between Ram chips.
But will this work?
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Tektronix TDS7104, DMM4050, HP 3561A, HP 35665, Tek 2465A, HP8903B, DSA602A, Tek 7854, 7834, HP3457A, Tek 575, 576, 577 Curve Tracers, Datron 4000, Datron 4000A, DOS4EVER uTracer, HP5335A, EIP534B 20GHz Frequency Counter, TrueTime Rubidium, Sencore LC102, Tek TG506, TG501, SG503, HP 8568B
 

Offline Johnny10Topic starter

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Re: Tektronix TDS7104 Sdram Memory Modules
« Reply #1 on: December 30, 2019, 05:32:31 pm »
I think I am OK.

Found Datasheet for Infinion memory showing only difference between numbering is MHz speed.
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Tektronix TDS7104, DMM4050, HP 3561A, HP 35665, Tek 2465A, HP8903B, DSA602A, Tek 7854, 7834, HP3457A, Tek 575, 576, 577 Curve Tracers, Datron 4000, Datron 4000A, DOS4EVER uTracer, HP5335A, EIP534B 20GHz Frequency Counter, TrueTime Rubidium, Sencore LC102, Tek TG506, TG501, SG503, HP 8568B
 

Offline Jwalling

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Re: Tektronix TDS7104 Sdram Memory Modules
« Reply #2 on: December 31, 2019, 10:02:31 am »
256MB memory modules must have 16 chips on them to be compatible.
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Jay

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Offline Johnny10Topic starter

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Re: Tektronix TDS7104 Sdram Memory Modules
« Reply #3 on: December 31, 2019, 01:30:59 pm »
Thanks Jwalling
I ordered two 256MB modules with 8 chips each side.

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Tektronix TDS7104, DMM4050, HP 3561A, HP 35665, Tek 2465A, HP8903B, DSA602A, Tek 7854, 7834, HP3457A, Tek 575, 576, 577 Curve Tracers, Datron 4000, Datron 4000A, DOS4EVER uTracer, HP5335A, EIP534B 20GHz Frequency Counter, TrueTime Rubidium, Sencore LC102, Tek TG506, TG501, SG503, HP 8568B
 

Offline Johnny10Topic starter

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Re: Tektronix TDS7104 Sdram Memory Modules
« Reply #4 on: January 08, 2020, 01:32:40 am »
Got my new chips and all is fine.
I now have 512MB main memory on 440BLX board.

Now I am wondering what TDS7104 Series Oscilloscopes think of adding memory to PPC board?
Does it make any difference?
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Tektronix TDS7104, DMM4050, HP 3561A, HP 35665, Tek 2465A, HP8903B, DSA602A, Tek 7854, 7834, HP3457A, Tek 575, 576, 577 Curve Tracers, Datron 4000, Datron 4000A, DOS4EVER uTracer, HP5335A, EIP534B 20GHz Frequency Counter, TrueTime Rubidium, Sencore LC102, Tek TG506, TG501, SG503, HP 8568B
 

Offline Jwalling

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Re: Tektronix TDS7104 Sdram Memory Modules
« Reply #5 on: January 08, 2020, 01:33:48 pm »
Quote from: Johnny10 on January 08, 2020, 01:32:40 am
Now I am wondering what TDS7104 Series Oscilloscopes think of adding memory to PPC board?
Does it make any difference?

It won't make a difference.
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Jay

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Offline Johnny10Topic starter

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Re: Tektronix TDS7104 Sdram Memory Modules
« Reply #6 on: January 08, 2020, 02:14:15 pm »
Thanks Jwalling for sharing your knowledge of this scope.
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Tektronix TDS7104, DMM4050, HP 3561A, HP 35665, Tek 2465A, HP8903B, DSA602A, Tek 7854, 7834, HP3457A, Tek 575, 576, 577 Curve Tracers, Datron 4000, Datron 4000A, DOS4EVER uTracer, HP5335A, EIP534B 20GHz Frequency Counter, TrueTime Rubidium, Sencore LC102, Tek TG506, TG501, SG503, HP 8568B
 
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