Hi there,
I have a bunch of ram chips, of which I guess some of them are not working. Is there a modern stand-alone way to test individual chips?
Kind regards,
Wietze
RAM DIP Tester
Re: RAM DIP Tester
I need to learn to search the forum. I see there are similar topics, apologies.
I also found: https://trolsoft.ru/en/chip-tester so far.
I also found: https://trolsoft.ru/en/chip-tester so far.
- rubber_jonnie
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Re: RAM DIP Tester
I've built a couple of DRAMduinos, they're cheap and easy, though they only cover 41256 & 4164 chips
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800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
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Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
Re: RAM DIP Tester
Wouldnt that cover all of the ST 32kb DIP memory modules?rubber_jonnie wrote: ↑Sun May 31, 2020 1:15 pm I've built a couple of DRAMduinos, they're cheap and easy, though they only cover 41256 & 4164 chips
- rubber_jonnie
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Re: RAM DIP Tester
It covers the majority of ST/F/M machines with 41256 chips, yes.wietze wrote: ↑Sun May 31, 2020 1:38 pmWouldnt that cover all of the ST 32kb DIP memory modules?rubber_jonnie wrote: ↑Sun May 31, 2020 1:15 pm I've built a couple of DRAMduinos, they're cheap and easy, though they only cover 41256 & 4164 chips
However there are some exceptions where there are different chips in play, such as in the Megas where chips of larger capacity than 256kb are used and some which have surface mount RAM, and some STFMs that also use surface mount RAM that you'd require some sort of adaptor in order to be able to plug them into the DRAMDuino.
I wasn't sure what range of RAM chips you had and only suggested it as it's a relatively quick and cheap way of checking the most prolific RAM found in ST's.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...