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  • Dumb question but deep answer wantedWhy is the ram on the 48k made up of 8 chips. Both upper 32k and lower 16k (4116) are set up like this. Taking the 4116 as an example this us a singl…

    Why is the ram on the 48k made up of 8 chips. Both upper 32k and lower 16k (4116) are set up like this. Taking the 4116 as an example this us a single 16k dram chip, so why the need for 8 of them?

    I've read so much I am going snow blind;-)
    hedge hedge December 2010 Hardware
  • broken 48K, strange screenwell I finally socketed all lower 16K ram chips, (8 of them in a row near corner, not those 4 in two rows) and replaced them with new ones but it did…

    ... turned on.
    strangely, ULA chip on this 48K is sitting ...
    orange orange December 2010 Hardware
  • FS: Spectrum 48K & 128K with games & magsHi, Having a bit of a loft clearance and i'm looking to get rid of my old speccy stuff, would rather it went to a good home than a scrap heap. I've…

    ... with scrabble and make-a-chip, i've seen comments on ...
    JeffBNorton JeffBNorton December 2010 Sales
  • Spectranet updateOK, so I've not written an update here for a while...so here's a quick summary, the gory details are on the Spectranet news page on my wiki. * Hardw…

    ... the W5100 IC.
    This chip is the ethernet interface, but ... problem was actually in the chip (all the W5100s made before ... W5100's 25MHz clock, the chip fails to autonegotiate and it ... , and software can reset the chip again if the link doesn ...
    Winston Winston January 2011 Hardware
  • Issue2 troublesHi! I have a 48k Speccy Issue 2 which has trouble with displaying colour. It did have a broken LM1889 chip (it didn't display the blue component of …

    ... did have a broken LM1889 chip (it didn't display the ...
    mikezt mikezt January 2011 Hardware
  • KempAY and Spectrum +3 queryIve been looking at the KempAY interface. It's the AY38912 chip on a board, which also doubles up as a kempston joystick interface all done in GAL ch…

    ... interface. It's the AY38912 chip on a board, which also ...
    Hercules Hercules January 2011 Hardware
  • How the spectrum generates the video from ramHi everyon, I know that most people here allready know this but i think i found out how the spectrum acctually dispalys stuff and why the LD x, (HL)…

    ... done on a single 64K chip because while the z80 ... is reading from that chip the PIC cant also read ... 64K chips, the first chip only needs 1K of video ... memory and the second chip stores the program/data. Thing ... is the lower chip only needs to be a ...
    Robin Robin January 2011 Hardware
  • PS3 now fully cracked and open?About a month back, a hacking group claimed that they'd discovered the PS3's 'key' algorithms, meaning that they can 'sign' any code. What this means…

    ... the need for a mod chip if you want to run ... presence/absence of a mod chip, can run any software as ...
    ewgf ewgf January 2011 Chit chat
  • DivIDE circuit/logic specsIs the hardware of the DivIDE documented, particularly the contents of the GAL/PAL chips? I'm looking to write a VHDL implementation of it. So far I…

    Is the hardware of the DivIDE documented, particularly the contents of the GAL/PAL chips? I'm looking to write a VHDL implementation of it.

    So far I've not found anything helpful, but I could just be google challenged today ;-p
    csmith csmith January 2011 Hardware
  • DIVIDE with 512kB memory upgrade for saleI sell DIVIDE (original version 57c) with my memory upgrade to 512kB ram. [img]http://velesoft.speccy.cz/other/divide512-smallpic.jpg[/img] More in…

    ... ram + 8kB eeprom(original eeprom chip).
    velesoft velesoft January 2011 Hardware
  • Extremely rare example of a Sinclair QL with DongleWe have now managed to resurrect an early example of the Sinclair QL home computer as it was first unveiled to the expectant media, complete with the…

    ... modifications to the motherboard / ZX8302 chip etc. The microdrive units both ...
    rwap rwap February 2011 Sales
  • A thousand core CPU?Maybe this is old news to most people on here, but according to: [url]http://www.zdnet.co.uk/news/emerging-tech/2010/12/25/intel-why-a-1000-core-chi…

    ... /intel-why-a-1000-core-chip-is-feasible-40090968/?s_cid=453 ...
    ewgf ewgf February 2011 Chit chat
  • One device to rule them allJust writing to discuss my requirements for a 'perfect' smart-phone. [LIST] [*]Android OS 2.3+ (so that I can customize every aspect of it, 2.3 supp…

    ... /02/tegra-roadmap-revealed-next-chip-worlds-first-quadcore-mobile-processor ...
    takapa takapa March 2011 Chit chat
  • New To Group....Hi All, A quick introduction as this is my first post. I am a Scarborough, UK based chap who is quite heavily into retro computing, more specificall…

    ... does sound like a dead chip somewhere. However, I do not ... able to work out which chip it could be. It is ...
    Jason9 Jason9 March 2011 Hardware
  • ZX Spectrum Woes...In my endeavours to get my second Spectrum (Issue 3) working I have replaced the CPU, memory and lower ram. I have fitted sockets for the CPU and me…

    ... .

    The only major chip that has not been replaced ...
    weathereye weathereye March 2011 Hardware
  • reinstalling an athlon xp heatsinkok, I've got an old cpu that needs it's heatsink sorting.. it's an old athlon XP , but the stuff on the heatsink needs replacing.. as the bit where t…

    ... .. as the bit where the chip was resting has worn thru ... . I need to clean the chip / heatink , but I am just ...
    fog fog March 2011 Chit chat
  • More nanny state nonsenseNanny state is back again with more interference in your daily lives: [url]http://www.express.co.uk/posts/view/237789/Salt-banned-in-chip-shops[/url…

    Nanny state is back again with more interference in your daily lives:

    [url]http://www.express.co.uk/posts/view/237789/Salt-banned-in-chip-shops[/url]

    Don't these MP's have anything better to do?
    Hercules Hercules March 2011 Chit chat
  • I'm sure they're multiplying...[url]http://cgi.ebay.co.uk/ZX-Spectrum-Sinclair-MAKE-CHIP-x6-JOBLOT-/290542356266?pt=UK_VintageComputing_RL&hash=item43a5ac872a[/url] Not sure if I'…

    ... .uk/ZX-Spectrum-Sinclair-MAKE-CHIP-x6-JOBLOT-/290542356266?pt=UK_VintageComputing_RL ...
    Morkin Morkin April 2011 Sales
  • The N64 megathread[Skip this if you want, the short version is "The N64 was deeply flawed, but still has some of the best games ever", so now you can claim you've read…

    ... it had no discrete sound chip (so the sound had to ...
    ewgf ewgf April 2011 Chit chat
  • S-Video kit for 128k modelsAs discussed in this thread: [URL]http://www.worldofspectrum.org/forums/showthread.php?t=33768[/URL] My arm has been twisted to do an s-video mod ki…

    ... kept close to the video chip. Routing the signal to the ...
    guesser guesser April 2011 Hardware
  • One Missing from the Archive?Today I brought a ZX Spectrum and it came with the usual Make a Chip, Scrabble, Chess, .... plus a few common budget titles. However, I have one I h…

    ... with the usual Make a Chip, Scrabble, Chess, .... plus a few ...
    Scottie_uk Scottie_uk April 2011 MIA/STP/SDP
  • Do you collect games?Do you collect games for the system(s) you own? I don't mean pirate games, I mean original game cassette, disc or cartridge. Or direct download games…

    ... 's never been enough non-PAL games that I've been ...
    ewgf ewgf April 2011 Chit chat
  • Brief report about RetroEncounterAnother April... another retro event! (Firstly sorry for the quality of the photos, owing to not being able to find my camera battery before leaving …

    ... really early 6502 (the white chip) - with the lid soldered on ...
    Winston Winston April 2011 Sinclair Miscellaneous
  • MISTER BEEP - new album with ZX musicHi, normally I don't like my tunes too much :) but this time I would like to proudly present to ZX universum: MISTER BEEP - "A thousand furious b…

    ... in 80s.

    Z80 chip can actually generate whichever sound ...
    Mister Beep Mister Beep April 2011 Sinclair Miscellaneous
  • This might be something new[img]http://www.711chan.org/test/src/130427925559.png[/img] Have a look at this screenshot of my emulator ZX82. Notice the copyright message? That's…

    ... as possible off the Z80 chip. What this means is that ...
    wilsonsamm wilsonsamm May 2011 Emulators
  • Foods we all likeRight, since we couldn't agree on either a game or a TV comedy show that we all liked, let's try something that we should all agree on -food that we …

    ... of great chippers (fish 'n' chip shops). Well, provided you live ...
    ewgf ewgf May 2011 Chit chat
  • Speccy's and Opus etcAre you sitting comfortably? I will do my very best to identify all this stuff. I have had some help but please ask if you need more information abo…

    ... .
    Middle row: Make-a-Chip; Forth; The Forest (orienteering simulation ...
    davie davie May 2011 Sales
  • Speccy Mouse???Hi. I really hope somebody could help me with this. Most of you will have seen the Speccy Stuff I've got listed in the for sale section. Amongst it…

    ... ) Is a special programme (or chip) needed to use the mouse ...
    davie davie May 2011 Hardware
  • heat / temp sensor on an athlon xp ?just curious if it's on the chip or the mobo , it's really old msi [url]http://www.msi.com/product/mb/MS-6390.html[/url] scrapped off the old past…

    ... if it's on the chip or the mobo , it's ... the middle bit of the chip... instead of the old skool ...
    fog fog May 2011 Chit chat
  • Valuation HelpA composite modded ZX Spectrum 48K rubber keyed Rev 2 board. Excellent condition of the membrane. With new reg chip, which is normally hot, changed t…

    ... the membrane. With new reg chip, which is normally hot, changed ...
    Van_Dammesque Van_Dammesque May 2011 Sales
<1…21222324252627…34>

Latest Posts

  • I bought an accoustic guitar. How do you play it?
    dm_boozefreek on 7:51PM
  • Goodbye Z80
    zx1 on 7:11PM
  • Happy 40th Birthday to the Amstrad CPC464!
    AndyC on 6:29PM
  • Another Birthday! The Game Boy Is 35!
    dm_boozefreek on 6:17PM
  • I am currently watching.....
    Antiriad2097 on 5:05PM
  • European Software Titles with an English version
    harriusherbartio on 12:06PM
  • How Do You Categorize Your Speccy Software and Games?
    harriusherbartio on 11:21AM
  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on 11:01AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21

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