atf3doc
asked on
error POST code (audible) meaning?
I am working on an old AT machine which won't boot. No display. The audible POST error is 11 short beeps...pause...then 11 short beeps...ad infinitum. I plugged in a SOYO TechAid PCI card which gives a reading of 06 during the beeps and d3 at the pause. The only "06" that I can find in the TechAid manual is power supply. Does anyone know if the 11 short beeps corresponds to that?(power supply that is). I'm asking because it isn't that easy to just swap out a power supply on an AT.(at least I don't think it is) If anyone confirms that power supply is a good probability then I will go to the trouble to try a new one. Thanks for your help.
atf3doc
atf3doc
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
If your machine is more than 3 years old then I would say....don't bother me....if it is less than 3 years old...change out the cards one by one...if it comes down to your motherboard....bite the bullet and get a new machine...
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
The motherboard is a Tyan Tsunami S1830S and the BIOS is AMI.. Where is the cache memory located?
atf3doc
atf3doc
ASKER
I just downloaded the manual from Tyan..(I am impressed at the ease of finding old motherborad information from Tyan)...
Manual says on Pentium II cache memory is located on the processor so there is no need for cache on the motherboard..So...I guess that indicates that the CPU is bad...I may have an old Slot 1 processor kicking around here somewhere.
Glad to not change out the power supply. I know it isn't that hard...just more time consuming than an ATX, especially if the leads to the switch are soldered.
I'll keep you all posted on my progress. In the meantime if you have any other ideas, please let me know. Thanks
atf3doc
Manual says on Pentium II cache memory is located on the processor so there is no need for cache on the motherboard..So...I guess that indicates that the CPU is bad...I may have an old Slot 1 processor kicking around here somewhere.
Glad to not change out the power supply. I know it isn't that hard...just more time consuming than an ATX, especially if the leads to the switch are soldered.
I'll keep you all posted on my progress. In the meantime if you have any other ideas, please let me know. Thanks
atf3doc
Since you are getting codes on POST card, CPU is at least partly functional as is motherboard. On a PII, L2 cache is on CPU mounting card and not CPU itself, so CPU is a real possibility.
ASKER
Well....i replaced the slot 1 processor....same results. Of course I don't know whethter this PII is any good. I may dig around and see if I have one in my bone yard that I can check and try that one.
Motherboard is also a likely culprit. If a known good CPU returns same error, probably mobo. Also try different system memory if you have replacement available or use 1 stick at a time if there are multiple sticks.
Boy, it's hard to be sure since you didn't give us the BIOs manufacturer or the year of manufacture, but usually 11 beeps means: CMOs status register initialized; going to disable DMA and interrupt controllers . (AMI BIOS) ..Booda2us
My answer came from the 4th edition of Bigelow's 'Troubleshooting, Maintaining, and Repairing PC's'. Pages;684,681,671. Since we never told what year or what AMI bios it was how does the link above that NOBUS posted provide a better answer? >"Old AT Machine"< ...Booda2us
ASKER
I apologize if it seems that I didn't split the points to your liking; I based my awards on speed of response and input.
It appeared to me that you had not thoroughly read all threads before making your submision.I had listed the BIOS manufacturer and Motherboard manufacturer about three days prior to your entry. Nobus' link gave same report as did the Tyan manual,"cache memory error." Again, thanks for your input .
atf3doc
It appeared to me that you had not thoroughly read all threads before making your submision.I had listed the BIOS manufacturer and Motherboard manufacturer about three days prior to your entry. Nobus' link gave same report as did the Tyan manual,"cache memory error." Again, thanks for your input .
atf3doc