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sinclairuser

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sinclairuser last won the day on February 22

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About sinclairuser

  • Birthday 06/30/1971

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  1. possibly caps, but i think its power supply, try another supply if you dont have an xbox one an atx supply is good to get the xbox running again while you get a new xbox supply.
  2. xbox cpu is an intel p3 coppermine, they were binned cpu's and non standard thats why interposers have to be used, its a hell of a lot of work and the main reason 1ghz or 1.4 cpus are used is to get the clock multiplier as near as possible, but also because if you are going to do it you might as well get the fastest cpu that you can make work if you could get a 30% increase by switching the cpu easily i think we would all be doing it. the thing about the xbox hardware is that while it may seem simple to upgrade some of its hardware its not because a pc will use any resource given to it, but an xbox will only use hardware that it understands, non standard parts cause problems, and if its not what the xbox expects it will throw errors. hope that makes sense.
  3. i would kill for a red case like that.
  4. that's great, i'm trying to find other drives that will work, i have never been convinced that there are only two, there must be others, as for firmware have you ever noticed just how many different pc dvd drives use basically the same firmware?. there are others, i just need to find them, the ultimate aim is to get an ode running on the ogxbox. years ago people said "why bother messing around with dvd drives just fit another xbox drive" they used to say the same about drive emulation but the amount of good xbox drives gets lower all the time. another drive i intend to investigate is the ihas lite on drive, that was used to rip xbox and 360 discs, those can actually read the media, there is a version that is ide though they will be old now so a sata board like we use on harddisks may be needed, i have ordered a new one from Malaysia though between the pandemic and overseas mail only god knows when it will turn up.
  5. @xbox admin, i totally understand projects are by nature at differing levels of competence, from basic to advanced its just i think if you are trying to accomplish a particular task that is by its nature niche, for example say a hdmi board for the ogxbox, there is no point doing the project at the raspberry pi developer level and putting binaries on git hub, even if it uses raspi hardware. you would need to do it at the xbox tinkerer level, thats all. @neakmenter, i am fortunate that i love my work, and that i have the ability to work at home, so having a corner of a bench with an xbox on it and tinkering is what i do just to keep busy, if i can find out something that i can relay to others then i will. thanks, aly.
  6. this looks great, the main problem i have is the whole sbc thing is just not noob friendly, i downloaded a so called sdr raspi complete image and it was totally useless, the only one i could recommend is the retropie image because a lot of work has been done to make it plug and play. the truth is that 9 times out of 10 you need to be an advanced user to to get these things running properly, if a new user cannot pick it up and get it running first time and then learn from there its a waste of time, someone buying a pi with a view to learn how it works and make their own projects quickly throws it to one side at the first problem, and its because a certain level of knowledge is expected to debug and set up the single board computer, which is totally ludicrous for a so called learning platform. what you need to do is if you design and make a device like this, is make it fool proof, get the oldest cheapest raspberry pi and base it on that but make it run on newer ones as well this is because more users can make use of it and they are more likely to have an older pi lurking in a drawer somewhere, then make the software an image they can load up and run straight away, getting the thing to work should be as easy as altering settings in the ui, if it has a desktop make it as windows like as possible, verbose mode and command line just puts new users off. sorry for the rant, another fantastic use of the raspberry pi, someone needs to work on an xbox version but it needs to be useable by xbox users not raspi enthusiasts. i could make it work, so could you probably, but we need a device that a numpty can install, that just works, just like an xbox dvd drive does.
  7. for some reason my text vanished above, anyway this is the drive i have been converting for xbox, the two mosfets added to the board are bs 170's one on the tray in line and one on the tray out line, this is due to this drive having the opposite state on those lines i had to add basic inverters to make them low going high. 2n7000 can be used for this as well as bs170, though from tests i have done with different drives its more common to be as the xbox expects(low going high), not the other way round, i'm currently waiting for some 74 logic chips as i dont have any as soon as those come i will fit the drive, but apart from that every signal on the xbox dvd power connector is as the xbox expects, at this stage i just want the drive working correctly it will read all media cd-r, cdrw, dvd-r, dvd+r, dvdrw(- and+). the only discs it wont read are xbox game discs, but until my mate who works with firmwares comes good its ok, i decided to make a new topic for this so i can add bits as i progress. one extra thing i discovered in the original sources on the net for doing this modification is that the data pin that is labeled as "serial DATA not used by xbox " is in fact a kick back line, its function is to tell the drive to keep spinning but it only matters on early thomson drives, all other xbox drives including the later tommy drives dont spin down, the majority of ide drives of that era dont spindown either, they slow down which is ok what you dont want is the drive to stop, because we have no way to kick it back up and the data stream would stop. there is no problem just leaving that pin floating, i tried both pulling it down and up and in both cases it had strange behaviours so just ignore it and leave it alone. leaving a line floating is not something i would normally do but here its ok, i will add more as i progress. thanks, aly. p.s. i know it looks rough and ready but this is only an experiment anyway, also ignore the date stamps on the photos i could not be bothered to set the clock on the potato sorry camera. fetch.pdf
  8. all these people asking for copies of this card, come on its 92Gb, the best you could hope for is asking nicely for a particular file. ask for what you really need, not what you want, if someone offered the server space to host it it might be doable, but again its 92Gb!. maybe we could find somewhere just for the OGXBOX stuff, that would slim it down a bit.
  9. hi all, i have here an xbox with no harddisk of its own but i had the hdkey, so i built a basic microsoft unmodded dash and locked it with the key. it boots fine no problems at all, now what i want to do is put an 80 gig drive i have in it, and normally (at least before) i have run the softmod then used chimp to migrate to a bigger drive, but i was thinking can i just build an 80 gig softmod drive and lock it with its hardisk key?. that would save messing around with the softmod and swapping drives, i could just build a drive and bung it in, iv'e done it with hardmods before but they had unlocked drives, i know softmods need locking but can i leave out the middle man. if i could take an 80 gig softmod hardisk image i have and lock it to this xbox it would save some time. thanks, aly.
  10. hi all, made progress it seems that the main issue with dvd drives on the xbox is due to spin down mode, the xbox wont tolerate that but in terms of using a compact flash or other solid state device its good news, all the lines on the xbox dvd power plug are either grounds, voltage or high or low at a particular interval. any off the shelf unit like an arduino, raspberry pi or other small board computer could be programmed to do what we want, the pi may be overkill for our needs, unless we go the whole hog and make one stop shop add in board that does disk drive, but also takes our video signals and gives us HDMI, it could do other things too reading eeprom springs to mind. but that would require quite a few of us getting our heads together, so for now i'm concentrating on just the drive. iv'e got teenseys, arduino nano's, a pi pico, coolrunners and other boards here to play with, i'm going to start with a compact flash to ide adapter first to hold the data mainly due to it basically being an ide type drive, but i have got 44 pin laptop ide to 40 pin ide converters, so have options. just going to take time and energy to do, but i'm up for it. but i want to make things clear, i'm not interested in selling this i dont even plan to make and sell boards, what i learn and get working will be posted freely here, so you can do it too, if that means adding a pc dvd drive ok, if its using an ode thats cool too. i am going to use off the shelf parts as much as possible, its not about just getting it to work i want it as easy as possible for people to replicate. as an aside a mate of mine has ordered a mode ode for his dreamcast, this unit is already running on saturn, dreamcast and playstation 1 with playstation 2 being worked on by others if the possibility exists of using a ready made solution i may jump that way, it all depends what will be the easiest for users to replicate. thanks, aly.
  11. thanks for the info Kaos, what i'm looking for is tray in tray out on this drive, your right about the signals scoping and sniffing the signals from the xbox ide interface doesn't reveal anything different to any other atapi dvd drive, which means there is nothing special about the ogxbox dvd drive. it has a custom power connector, and special firmware so it can read xbox dvds, my own belief is that any dvd drive could be made to operate on an xbox, back in the day two dvd drive models were discovered that could be made to work with mods and firmware, there are others i'm convinced of it luckily i have a work mate who understands drive firmware, in order to replicate the drive i need to know how it operates mechanically and electronically. thanks, aly.
  12. i am playing with an lg dvd drive its not the one that used to be converted to read xbox disks but very similar, i have found 3.3v, 5v, 12v, eject, cd/dvd and data lines for the xbox power plug. grounds are easy the problem ones are tray in, tray out, the reason i mention this here is because its all relative if we want to make a working ode we need to get ordinary dvd drives working on an xbox first, i'm not talking about reading games disks(yet) as that requires new firmware which according to my IT mate the known lg firmware can be made to run on this drive with tweaking. i'm hoping someone knows the pinout of the ide/atapi/pata socket on the back of the drive, since a pc knows when the tray is open or closed and can in fact eject the disk the required lines must be in the ide socket, i want to get this drive running so i can reverse engineer the drive connections, then when i know where and how the dvd connects and talks to the xbox i aim to substitute the drive for another device, maybe a raspberry pi to run emulation using the sdcard, or the mode used in the saturn/dreamcast/playstation, but thats later on first things first. lets not try to run before we can walk. thanks, aly.
  13. it all depends what the zener diode is doing in circuit, it could be to stabalise the power, or to drop the voltage, if i had to guess having not worked this mod, i would say that its probably stopping spikes in the power rail, reading and writing requires smooth stable voltage.

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Board startup date: April 23, 2017 12:45:48
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