matze79 wrote:did you reseat and clean all socketed ic's ?
ReL wrote:xt computer here the motherboard manual
http://arvutimuuseum.ee/th99/m/U-Z/31541.htm
I have one same
https://imgur.com/qIFPPsW
Anonymous Coward wrote:Although the picture is blurry, I am guessing it should be an 8088 board, as an 8086 would normally have a BIOS spread across two ROMs.
AppleDash wrote:As stated, when I power on the system, all I get is a blinking cursor in the upper left corner of the monitor. Any ideas what I'm doing wrong? And... if anyone could help me identify the unknown parts, that would be great!
derSammler wrote:AppleDash wrote:As stated, when I power on the system, all I get is a blinking cursor in the upper left corner of the monitor. Any ideas what I'm doing wrong? And... if anyone could help me identify the unknown parts, that would be great!
You probably did nothing wrong apart from not showing enough patience. The XT just shows a blinking cursor when turned on while testing memory. With a full 640k, this can take up to 90 seconds.
derSammler wrote:AppleDash wrote:As stated, when I power on the system, all I get is a blinking cursor in the upper left corner of the monitor. Any ideas what I'm doing wrong? And... if anyone could help me identify the unknown parts, that would be great!
You probably did nothing wrong apart from not showing enough patience. The XT just shows a blinking cursor when turned on while testing memory. With a full 640k, this can take up to 90 seconds.
Scali wrote:Another explanation could be that it is not configured correctly.
XTs generally have jumpers or dip switches on the motherboard to select between mono and color display adapters. In this case, probably the blue block of switches (that is the same as on a real IBM XT, so chances are they also work the same, so if you can't find docs for your specific board, try this: http://minuszerodegrees.net/5160/misc/5 ... ttings.htm, switches 5 and 6. In your picture they are both on, so it expects a VGA card or such, try 5 on and 6 off)
If it is jumpered to mono, then the BIOS will send all text and video commands to an MDA/Hercules-compatible card. The CGA card will work, and boot up in textmode, but all you'll see is a cursor, because it never receives any other data or commands.
If this is the case, the machine should actually be able to boot, so you could try to boot from a DOS floppy, and then you can type 'mode co80' to switch to CGA.
Moogle! wrote:Incidentally, are you sure that is a CGA card and not an EGA card? I don't think I have ever seen a CGA with the two RCA jacks on it. I believe monochrome and EGA use the same dip setting, but I could be wrong.
Also, is that not the same XT board Red Hill talks about?
EDIT: Nope, Google says CGA.
PTherapist wrote:1701 is a HDD controller error, as per the info on this link:
http://minuszerodegrees.net/5150_5160/h ... lities.htm
You say you tested that HDD on another system, was it tested with the same HDD controller? If not, it's possible that the controller doesn't like the ST-412 or something else as suggested in that link is wrong.
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