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<1234567…34>
  • Test program for 128k machinesThere is a Test Program for 16/48k machines: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0008884&loadpics=3[/url] Is there a similar progr…

    There is a Test Program for 16/48k machines:
    [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0008884&loadpics=3[/url]

    Is there a similar program for Spectrum 128/+2/+3?
    PopoCop PopoCop September 2009 Sinclair Miscellaneous
  • Memory upgradeHi! I bought a 16K rubber key Spectrum. It's said in the box and memory test program also said it's 16K machine. Strange thing is that there is yell…

    ... said in the box and memory test program also said it's 16K ... (so no soldering needed) for memory upgrade. There is also 4 ... -->48K? Motherboard is Issue 2.
    What might be explanation ...
    lillaolle64 lillaolle64 October 2010 Hardware
  • Bizarre ZX Spectrum faults (also possibly relevant to Spectranet compatibility problems).I'm attempting to repair an issue 4A 48K ZX Spectrum and am encountering some very strange problems. For my own records I've given this computer the …

    ... been working on ZX285 for 2 - 3 days so far. ... the BASIC portion of the memory test program that was running become ... though I note that the test program itself never reported finding a ... though, load and run the memory test program again and stopped it after ...
    Zorn Zorn February 2016 Hardware
  • Can someone run this test program on a real Spectrum 48K?I've knocked up a small test program just to satisfy my emulation OCD if someone with a real 48K Spectrum can spare a couple of minutes to run it.? …

    ... 've knocked up a small test program just to satisfy my emulation ... and will display one of "Test passed!", "Illegal interrupt response" or ... 'm kind of hoping for "Test passed!" on real hardware!
    Woody Woody November 2019 Emulators
  • A couple of random questions......because, why not? (1) USR0 mode on the +3/+2A/B I know of its existence, I know how it's used, and I have some games that require it to work o…

    ... for developers?

    (2) ZX81 machine code
    I ... - I found a small ZX80 memory test program that holds a small machine ... was POKEd via a separate program, the characters would steadily ... myself with the example program from the +2 manual (ld bc, ...
    The Mighty Dopethrone The Mighty Dopethrone March 2020 Sinclair Miscellaneous
  • Repairing a faulty 48K issue 2.I am investigating one of a pair of non-working issue 2 48K Spectrums that have been sitting in a cupboard untouched for quite a few years. I haven…

    ... .zigg.net/ZX/spectrum-sram-2.jpg[/IMG]
    (Sorry for ... loaded and run my BASIC memory test program (for several hours), Through the ...
    Zorn Zorn December 2011 Hardware
  • 16k --> 48kI bought a zx and found out it was a 16k since when I execute PRINT PEEK 23733 I get 127 Does it mean I get a lesser model? What limitations do I h…

    Try the memory test program ([URL="http://www.worldofspectrum.org/ ... situation clearer. Tell it to test the upper RAM.

    2 74nn157 logic ICs (where nn ...
    Zorn Zorn December 2012 Hardware
  • 16k --> 48kI bought a zx and found out it was a 16k since when I execute PRINT PEEK 23733 I get 127 Does it mean I get a lesser model? What limitations do I h…

    [QUOTE=Zorn;671262]Try the memory test program ([URL="http://www.worldofspectrum.org/ ... situation clearer. Tell it to test the upper RAM.

    2 74nn157 logic ICs (where nn ...
    camurso_ camurso_ December 2012 Hardware
  • Possible dodgy +2 - resets when loadingSo I have a grey model +2 with a recently refurbed tape deck (new belts and cleaned heads). It might be a product of bad loading, but from what I ca…

    ... the power supply on the +2 board. Are any of the ... this? I suspect there are memory test programs I can use, but ... quick look for a 128K memory test program and couldn't find one ...
    RobeeeJay RobeeeJay August 2013 Hardware
  • 48K Upper memory issues?Having more issues with the 48K spectrum I just fixed that had the black screen in this thread [URL="http://www.worldofspectrum.org/forums/showthread…

    ... /> I tried to load the memory test program and it still didn't ... not come up with the program name.
    However, I tried ... faulty spectrum is an Issue 2 board and the working one ...
    whoremoan whoremoan November 2014 Hardware
  • Troubleshooting my +2To put this in context: a while back (i.e. late last year and earlier this year) I was looking to put together a compilation of modern Spectrum games…

    ... , it needs resoldering. With 2, it needs the damaged section ... faults, take out a large memory range. So for example, ... all contended banks), or all memory above 32k (upper RAM) ... -contended banks.
    Run a memory test program to check...

    ...
    1024MAK 1024MAK October 2017 Hardware
  • Troubleshooting my +2To put this in context: a while back (i.e. late last year and earlier this year) I was looking to put together a compilation of modern Spectrum games…

    ... 1, it needs resoldering. With 2, it needs the damaged section ... contended banks.
    Run a memory test program to check...[/quote]
    I ... acceptable range. I find the +2 is tolerant of a reasonably ... that were troublesome on the +2, sending the WAVs from the ...
    The Mighty Dopethrone The Mighty Dopethrone October 2017 Hardware
  • ZX Spectrum +3 repairI have my first +3 here, and it needs repairs. Hoping someone here can help me out. When I power it on I get this screen with black and white line…

    ... I have already run the memory test program from GitHub ([url=https://github ... JoulesperCoulomb" (from YouTube) fixing a +2 and wiring in a socket ... it, and the +2 had intermittent memory issues, where it was ... the +2 from the video had. I left the program running ...
    The Mighty Dopethrone The Mighty Dopethrone November 2017 Hardware
  • ZX-81 Ram Pack problemHi! I know this is a ZX Spectrum forum, but I am hoping someone here might be able to help me out... I have posted this to c.s.s. but noone was able…

    ... to type in the memory test program
    it won ... on the screen (as the program listing):

    memory test program above RAMTOP like this : ... NO ERRORS whatsoever - all memory from 19456 o 32767 ... would get a long memory test and couldn't ...
    Tom-Cat Tom-Cat September 2005 Sinclair Miscellaneous
  • 48K Not booting properlyBought another faulty spectrum from Ebay. This one, when you turn it on, it looks like it's going to boot OK, but when it gets to the point where it…

    ... then tried to load the memory test program from Zorns website but I ... the first part of the program loading.
    if you list ... the program most of it is garbage ... guesing I still have a memory fault somewhere? Anyone got any ...
    whoremoan whoremoan January 2015 Hardware
  • Dell Dimesion 8300 - Blue Screen of DeathOver the last couple of weeks I have been attempting to fix a Pentium 4 Dell Dimension 8300 belonging to a blind frienrd of mine. I kept getting the…

    ... isn't caused by faulty memory. Sometimes it's a bad ... :

    -Use a bootable memory test program. I use memtest and there ... boot the computer with other memory, different from the one that ... Dell towers are picky about memory, btw. And some of those ...
    zxbruno zxbruno November 2007 Chit chat
  • Problem upgrading 16K SpectrumHello Spec-chums, I've been a long time Commodore user, but also a long-time Speccy admirer (and emulator user). I've recently got hold of a Issue 2…

    ... did, you can write a memory test program to find the bad chip ... BASIC program that'll do a quick (but not exhaustive) RAM test ...
    Winston Winston October 2008 Hardware
  • Semi-Dead Spectrum - Help RequestedI have finally got my hands on my two old Spectrums - neither of which work, but ideally I hope to get both of them working again. Spectrum number o…

    ... specific situation. I created the memory test program that I recently posted in ...
    Zorn Zorn October 2012 Hardware
  • Spectrum +3 WoesI have a second hand +3 here - the case is in really nice condition. It starts up fine, but after I try accessing the floppy disk, the Spectrum free…

    ... test.

    You could also type in a simple BASIC memory test program ... . Run the program while it warms up ...
    1024MAK 1024MAK December 2012 Hardware
  • ZX Spectrum 48K working as 16K from factoryGood morning I Have a Zx Spectrum 48k working as 16K , it came like this from factory. What can i do to solve this , and put it to work as 48K? Wha…

    ... the help

    The memory test program didn?t worked ( shows ramtop ...
    camaisin camaisin July 2013 Hardware
  • ZX Spectrum 48K working as 16K from factoryGood morning I Have a Zx Spectrum 48k working as 16K , it came like this from factory. What can i do to solve this , and put it to work as 48K? Wha…

    ... should see that in your test, bit 5 seems to be ... . You should then run the memory test program I posted. It will, of ... very simple POKE & PEEK test.

    If it turns ...
    Zorn Zorn July 2013 Hardware
  • Corrupt paper on zx spectrum 48kHi. When I power up my spectrum (issue 3) I get the light grey border, but the paper is black and it switches between thin red vertical lines and thi…

    The memory of a 48k Spectrum is ... . Each chip covers 16,384 memory locations but only stores one ... to use a ROM based memory test program. There are a number of ...
    1024MAK 1024MAK August 2013 Hardware
  • 48K Upper memory issues?Having more issues with the 48K spectrum I just fixed that had the black screen in this thread [URL="http://www.worldofspectrum.org/forums/showthread…

    Tried to load the memory test program, but nothing I tried it ...
    whoremoan whoremoan November 2014 Hardware
  • 48K Upper memory issues?Having more issues with the 48K spectrum I just fixed that had the black screen in this thread [URL="http://www.worldofspectrum.org/forums/showthread…

    ... now managed to get the memory test program to load.
    I had ... as follows.

    Lower memory test failed after a few passes ... .
    I then ran the test again a couple of times ... [/IMG]

    The upper memory test I also ran a few ...
    whoremoan whoremoan December 2014 Hardware
  • 48K Not booting properlyBought another faulty spectrum from Ebay. This one, when you turn it on, it looks like it's going to boot OK, but when it gets to the point where it…

    ... then tried to load the memory test program from Zorns website but I ... the first part of the program loading.[/QUOTE]
    The symptoms ...
    Zorn Zorn January 2015 Hardware
  • 48K Not booting properlyBought another faulty spectrum from Ebay. This one, when you turn it on, it looks like it's going to boot OK, but when it gets to the point where it…

    ... again attempted to load the memory test program and it worked this time ...
    whoremoan whoremoan January 2015 Hardware
  • ZX Resets when loading programs?Hello, I have a weird issue with my new ZX Spectrum issue 2 16K. The ZX is in great condition, BASIC works and the RAM Diagnostic PEEK 23733 reports …

    Pretty sure this is a lower memory problem, any way you can change the 4116 chips, or change the positions? Zxzigg has a memory test program try running that first.
    patzik patzik May 2015 Hardware
  • Help with a TIMEX TC2048 and memory problemBought a 2nd hand Timex TC2048 but unfortunately I detected a problem with the machine which is preventing it from working properly. I believe it …

    ... />
    Have you ran a memory test program?
    Also if not, have ...
    10 CLS : PRINT "enter test value"
    20 INPUT d ... NEXT a

    Good test values are 0, 85, 170 ...
    1024MAK 1024MAK December 2017 Hardware
  • Rod-land - struggling to get working on my real +2 (grey machine)Hi Everyone, I've had a week enjoying tinkering with my +2 and there are only a few games I have not managed to play on my +2 that I enjoyed back …

    ... know if there is a memory test program for the Spectrum to ensure ... all the memory modules are working as expected ... I have a slightly bad memory module which is corrupting some ... attempts to dump a complete memory chunk into my Spectrum's ...
    AD-RS1600i AD-RS1600i June 2019 Games
  • More on the Cheetah RampackI should be more careful about doing "repeats" ( I should learn some manners) but I could not find anything recent on these . But here is on WOS …

    So it appears that a slightly more powerful power supply is useful for these .My one came with some instructions and a Memory Test Program . So maybe my idea of using a Retroleum Smartcard with it is a bit superfluous.
    harriusherbartio harriusherbartio October 2019 Updates
<1234567…34>

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