It's an old diesel-powered hard drive. You have to replace the glow plugs so it's warm before spinning up. :3
@RetroSpector784 жыл бұрын
It does appear so.... will try to fix it if I can ... but need to do some reading on it....
@pipschannel12223 жыл бұрын
@@RetroSpector78 It's probably an easy fix. These drives have a separate head stepper motor which probably needs some lubrication. See Adrian's digital basement's video where he does this by dropping some liquid grease in it to free up the bearings..
@mark12358 Жыл бұрын
@@pipschannel1222 TRUE! I fixed mine that way, try it!
@proxy10354 жыл бұрын
15:03 little tip, the k for kilo is always lowercase, but the B is different. b = Bit B = Byte just a very minor detail
@KasparOnTube4 жыл бұрын
ATi videocard and cpu with AMD logo, team red is strong here
@LayneRuley5 жыл бұрын
A few times I noticed a very high pitch from your video at (if i had to guess) 25-30khz? at 13:26 is one time i can hear it. Other than that, i love these videos! and I will keep watching! Thank you!
@RetroSpector785 жыл бұрын
Thx ! I'll make a note of it and will double check on next video's. First time I noticed it. Thx for pointing it out.
@-x21-4 жыл бұрын
It's around 10khz. 25 to 30 would be annoying dogs. EDIT: it's 9126hz. Everyone should be able to hear this unless deaf.
@kathrynradonich39824 жыл бұрын
Yea I heard it too and came here hoping to see someone else had commented on it. Started at 12:58 for me
@gbclab4 жыл бұрын
Also at 9:33
@proxy10354 жыл бұрын
@@-x21- i cannot hear it. i tried it with an online tool to generate the same freq. sound and i was able to hear that... sooo?
@Hal95265 жыл бұрын
Excellent video. In 1988 I bought a Commodore Colt "Turbo XT" clone from Lycos Computers in Pennsylvania, USA. It came with DOS 3.3, I believe. At the same time, I bought a Seagate ST-138R 30MB RLL drive, from Hard Drives International, with a WD HDD controller. I also purchased an 8-MHz 8087 math chip, for astronomical programming (using mostly Borland Turbo BASIC). I used it for a few years, though I later upgraded the HDD to an ST-277R-1 65MB drive, which worked perfectly but made some extraordinary noises on startup and shutdown: kzbin.info/www/bejne/fJmZpJdjoMl5fMk Anyway... memories.
@RetroComputingwithMike5 жыл бұрын
Nice job ... i just go an PC20 yesterday, been looking for it for some time because it was the computer i had as a kid! It does not boot though ... so i guess i bougt myself a project :P Any chance i can get you to dump the bios-rom for me?
@gilbert1975nf4 жыл бұрын
8:04 - BASF? Is it correct? Never saw BASF HDD, althought I already saw a lot of tape driver... Is it from Germany oh right?
@eddiehimself4 жыл бұрын
I should imagine that the 170W is the power intake, whereas the 120W is the maximum output into the PC.
@kienhwengtai81134 жыл бұрын
I had a PC45-III (286 16Mhz with a 80287XL). Freaking clock battery leaked and killed the motherboard.
@nicwilson894 жыл бұрын
They just went ahead and renamed Jif to Cif in the UK to be more aligned with the rest of Europe, although quite a few people just continue to call it Jif regardless :)
@Glimmlicht4 жыл бұрын
Maybe a Stucked Stepper Motor coz. It Needs Some fresh oil on the upper bearing
@Ramdileo_sys4 жыл бұрын
0:09 ... I think you found Luigi ... (from Mario Bros series) ......... he is clearly building something in there .... LOL .
@elamriti5 жыл бұрын
if i find a commodore pc in the future i wil let you know via private message gr soufian ;)
@RetroSpector785 жыл бұрын
Hehe... next up 286 :)
@AiOinc1 Жыл бұрын
That monitor is a copy of the Magnavox Computer Monitor 80, in case you weren't aware, and 5 expansion card slots was very limiting in the XT days. A "real" XT had 8 slots, and most of them were filled! Also, at 13:57 this controller shows support for both 17 and 26 sectors per track, which for drives with reliable mechanisms meant you could get 50% more storage out of them. The 10MB disks became 15MB and the 20MB disks became 30MB, though I'm unaware of any 10MB mechanisms that were capable of this reliably there were plenty of 20MB units that would run 26 sectors out there - Kyocera KC-30, Kalok Octagon KL-330, Seagate ST-238R, etc.
@user784054 жыл бұрын
170w...??? OMG in 1984...so they went from PC1 no expansion....TO OVERKILL expansion and power in the time ...and powersupply have a fan ??? omg WTF commodore is making....3d gaming machine
@Neovo.Geesink4 жыл бұрын
10:30 Hard drive seek failure at cold start: You can preform a low level format on the drive to "rewrite" the sector information. Probably that magnetic signal has degraded so far that at cold start, it is not even registered by the electronics of the drive. Otherwise, it can be an electronic component which is drifting way out of specs when it is cold, or even the engine bearings which couses too much friction when cold that it is just that tiny % too low on RPM.
@maikmerten4 жыл бұрын
That knocking sounds like the stepper motor for head positioning getting a bit stuck. This can be caused by the motor's bearings running dry of lubricant, increasing friction. Adrian Black has a video on how to lubricate such drives: kzbin.info/www/bejne/Y4atYYx7ZsZkfNU
@RetroSpector784 жыл бұрын
I think mine is driven by magnets / coils. Not sure how to fix it (yet).
@maikmerten4 жыл бұрын
@@RetroSpector78 Oh, didn't notice that there is no easily accessible stepper motor. Sorry for the noise and thanks for your wonderful videos!
@RetroSpector784 жыл бұрын
Zufällige Zeichenfolge appreciate every single comment ! Nice to hear you’re enjoying the videos ! Make sure to checkout the other content also.
@AureliusR Жыл бұрын
That's not a proprietary connector on the RAM card. It's just an extremely standard 0.1" pin header.
@drmr_music5 жыл бұрын
(JFTR, I deleted my comment about the PC-*10*-II, which your machine is obviously not, but my silly brain kept constantly misreading it as. It is ultimately not useful to you nor to anyone else. Carry on, and thanks for your videos!)
@RetroSpector785 жыл бұрын
drmr no worries ... thx for watching ! You never know I might get a PC10 at some point to review.
@dan28004 жыл бұрын
Im sure that you can fit at least 50TB more like 100TB of nand storage into the space of that mmf hdd
@wyokaiju9924 жыл бұрын
You will need a faster CPU just to manage the flash memory alone, lol
@dan28004 жыл бұрын
@@wyokaiju992 YEA lol
@piecaruso975 жыл бұрын
nice video as always, you deserve way more subscribers
@elamriti5 жыл бұрын
i agree
@RetroSpector785 жыл бұрын
Don't think there's even a remote possibility that youtube starts promoting stuff from creators that have < 1000 subs. So either something goes viral, or we just have to be patient until the fanbase grows and hits some kind of secret magic number :) But I'll keep the content coming, no worries :)
@HuntersMoon784 жыл бұрын
Only thing I have by Commodore that is not Commodore 64 is an LED watch.
@VicTheVicar Жыл бұрын
The Chinon FZ-502 is 360k. The 1.2M version would be the FZ-506.
@asanjuas Жыл бұрын
Apparently the video card is a plantronics one supporting 16 colors at 640x200.
@DxDeksor5 жыл бұрын
That's one polite hdd ^^ Have you tried to open the power switch ? maybe it's simply a part that have moved inside and is easily fixable ? As for the HDD, perhaps some caps are dying, or maybe some bearings in it are starting to be stick a bit ?
@RetroSpector785 жыл бұрын
Not yet... keeping that for another video. Switch should be easy fix or replace kinda thing. I hope the hard drive is gonna be as simple as a bad cap, but I doubt it :(
@DxDeksor5 жыл бұрын
@@RetroSpector78 Have you tried to run the HDD for a REALLY long time ? (by that I mean many hours or maybe even days) sometimes it helps with the mechanisms get back to working order (I don't mean warming it up like you do currently of course ^^). This worked on my 20MB western digital drive from 1988 (there's footage of it on my channel even though it's not recorded very well, but ... you get the idea. KZbinr Adrian Black has explained why that happened on drives exactly like mine (basically the bearings of the stepper motor moving the head are starting to stick which prevents the head from working properly). This might not be the case with your drive, but I've always heared that running a old MFM hdd that haven't been used in years and that has problems can help making it working, and since it helped with mine, maybe it will with yours ^^
@RetroSpector785 жыл бұрын
@@DxDeksor Will give it a try .... will need to find something that puts activity on the disk as I guess simply letting it running idle will not do very much ?
@RetroPCUser4 жыл бұрын
Knock, knock. Who's there? Actuator arm. Actuator arm who?
@GreySectoid Жыл бұрын
This video was really helpful as I need to restore mine as well, I have absolutely no experience with XTs so there's a bit to learn.
@user-wj9xq7ig2v Жыл бұрын
What a filthy disgusting beautiful machine.
@hansmuller1625 Жыл бұрын
This is the first computer i ever used. Would love to have one again.
@VK2FVAX5 жыл бұрын
Worth while doing a low level format of that old drive. I've had a few that have mysteriously got better afterwards. Generally when it does the self-test it's looking for a regular test pattern on a track adjacent to the landing zone, and this degrades with time. Doing a low level format either through debug.exe and calling the routine directly, or some other utility or ROM routine on the controller card, you'll often find it'll behave much better to re-MFM encode the drive which will include the test pattern adjacent to the lzone.
@RetroSpector785 жыл бұрын
Thx for the tip ... going to give it a try .. some also suggested that it might be a bad cap somewhere on the circuit board. Will check that also. And if all else fails, I’ll might add an xt-ide card to it. The only other available mfm drive I have has a stiction issue, and needs manual intervention for it to start spinning.
@VK2FVAX5 жыл бұрын
Yep. I can be stiction, and the cap also. A lot of old MFM, ESDI and RLL drives just won't start and many that do .. the EM fields around the place over 25-45 years have flattened a lot of the encoding. Also re-low level formatting will check the blocks for read-back afterwards and refresh the bad sector list which is actually really important but we're not at that stage yet. So yes.. definitely replace electrolytics, be super gentle when fishing for stiction to get it un-stiction'd, and find a way with your controller to low level format the thing. Additionally, if it's a stepper-motor design drive like most of the really early ones, make sure you have a head parking program that knows how to park and ship the heads off the platter of the drive. It definitely won't last long if you spin it up .. listen to the cool sounds then un-power the thing. The heads will stop riding that microscopic cushion of air and just "rest" on the platter ..waiting to grind their way back into orbit next time you power it back up. This process is called "Shipping the heads" or "Parking the Heads". If you know what all this is, great, else do a dash of googling :) Best Wishes, Al.
@mentalplayground4 жыл бұрын
"Banner" on 286 Oh the nostalgia!
@dykodesigns4 жыл бұрын
Looks like the floppy ribbon cable isn't twisted, quite unusual for a pc clone. Probably shurtgart standard with jumper set to DS0 instead of DS1?
@daoneTM4 жыл бұрын
🎵 It's a hard knock drive.. 🎵
@MrGencyExit643 жыл бұрын
Don't knock it till you've tried it
@waXsurf4 жыл бұрын
Made in W.-Germany
@KasparOnTube4 жыл бұрын
lol.. like my car
@cbmeeks4 жыл бұрын
That power connector was also used on the Apple II series. -- EDIT -- Actually, it is similar to the Apple II but IIRC, the Apple II connector didn't have those half-circles in it. So perhaps this is proprietary to Commodore.
@CCfiftyeight4 жыл бұрын
Did you geht the PC from Germany? The Stickers Like the "Funkentstörrt" one were typical for computers in Germany at the time. 😄
@marioserrano50874 жыл бұрын
Hi, does it have a battery on the main board
@dLLund4 жыл бұрын
as always, thank you for posting. i like your methodical approach. interesting that there's no twist in the fdd cable for the A drive. is the drive set to ds0 or ds1 ? also, interesting to find a 1.2mb fdd in a pc/xt clone.
@1ManWrenching5 жыл бұрын
Very odd that it’s only 4.77MHz but has a 1.2mb floppy drive. I had a 10MHz XT. Only had a 360k floppy. ATs generally got the 1.2mb drives. As for the knocking and it going away after warmup. Sounds like capacitors. Check the board on the drive and the controller card.
@logipilot2 жыл бұрын
That drive is probably only 360k
@fhwolthuis4 жыл бұрын
Did you already make part 2?
@aussie_retro_dude92533 жыл бұрын
Was a follow up video ever made ?
@darkwinter60284 жыл бұрын
If you can’t get a replacement switch, I suppose you could just put a power director on it...
@catriona_drummond4 жыл бұрын
cif is called biff here iN germany and I use it as well. Don't like using baking soda.
@cheater004 жыл бұрын
great video, thanks a lot! wondering what happened with that knocking drive? it sounds like heads need to re-align every time it boots. maybe the alignment data is somehow erased?
@rallyscoot4 жыл бұрын
Does the motherboards floppy controller / bios also supporting 1.44MB floppy drives.. Or is 1.2MB the max due the time period?
@RetroSpector784 жыл бұрын
Not really sure but I doubt that this one would support 1.44mb 3.5 inch floppy drives.
@MarkTheMorose4 жыл бұрын
It was sensible for Commodore to have a line of PC compatibles alongside the Amiga early in its life.
@PearComputingDevices4 жыл бұрын
Now this is great! Can it run mindcraft? lmao..
@RetroMechanic4 жыл бұрын
Are you teacher? You tell what commodore PC20 is, but not how to fix hard-drive :D
@only2573 жыл бұрын
🤓
@undefinedperson78164 жыл бұрын
Nice video, i didn't know that Commodore released PC clones.
@Neovo.Geesink4 жыл бұрын
09:32 An Intel 8088 with allso an AMD logo?? WOW!! Although, up till the 80486, Intel and AMD CPUs were Pin compatible, but after that, tey parted ways and become each others rivals.
@cee128d4 жыл бұрын
AMD, Cyrix, IDT, WinChip, IBM, and a few others were also pin comparable with the original Pentiums using the Socket 7 and Super Socket 7 motherboards. It wasn't until the Pentium II that they began using different sockets.
@logipilot2 жыл бұрын
Chip shortage in the 80s: Siemens, Amd, Nec, Fujitsu, Mos... were all producing licensed 8088! (Not clones, but original 8088)
@TheNovum5 жыл бұрын
Beautiful 👍
@RetroSpector785 жыл бұрын
Yeah .... really like this machine ... have a thing for commodores ever since I was a kid (commodore 64 and amiga). Didn’t know at the time they also made pc’s.
@rforestier4 жыл бұрын
That's a beauty
@RetroSpector784 жыл бұрын
Thx ... also like the non-nonsense design ... looks like a tank.
@cyberp0et4 жыл бұрын
Fascinating machine!
@UncleAwesomeRetro5 жыл бұрын
It was interesting to see an Intel chip had the AMD logo, and then you see the later AMD chip with the AMD logo :) So what is now AMD's logo was what they used before they split up.
@kevinh965 жыл бұрын
AMD were never part of Intel. Intel signed an agreement with AMD under pressure from IBM when the original IBM PC was launched, as IBM wanted a second source manufacturer of Intel processors at the time. That's why the 8088 has an AMD logo but the Intel copyright marker on it.
@l337pwnage Жыл бұрын
@@kevinh96 Sounds kinda like when the the Army sourced Jeeps back in the day. There were 3 makers, the largest being Ford, and Ford's response was to stamp "F" into every one of their parts, even bolts, so they wouldn't be faulted for any issues with the non-Ford Jeeps, lol. Not the same thing, but it made me think of that.
@MilliVee19664 жыл бұрын
Something got screwed up in editing - jumps all over the place
@RetroSpector784 жыл бұрын
How so ?
@rayhowe43544 жыл бұрын
You need to bin this,now.
@rawr519194 жыл бұрын
Not if he can help it. Why do you think he took the effort to clean it up and make it run?