Ultra 10 is Ultra Broken?

Hey everyone, I recently bought an Ultra 10 off of eBay and when I tried to boot it the power supply turned on and the fans spun but I wasn't getting any video... so out came the serial cables!

After starting POST it gets about half way through (maybe?) and then just stops with a repeating error:

RED State Exception

TL=0000.0000.0000.0005 TT=0000.0000.0000.0010

TPC=0000.0000.0000.4200 TnPC=0000.0000.0000.4204 TSTATE=0000.0044.1500.1500

TL=0000.0000.0000.0004 TT=0000.0000.0000.0010

TPC=0000.0000.0000.4200 TnPC=0000.0000.0000.4204 TSTATE=0000.0044.1500.1500

TL=0000.0000.0000.0003 TT=0000.0000.0000.0010

TPC=0000.0000.0000.4200 TnPC=0000.0000.0000.4204 TSTATE=0000.0044.1500.1500

TL=0000.0000.0000.0002 TT=0000.0000.0000.0010

TPC=0000.0000.0000.0600 TnPC=0000.0000.0000.0604 TSTATE=0000.0044.1504.1400

TL=0000.0000.0000.0001 TT=0000.0000.0000.0030

TPC=0000.01ff.f000.1f68 TnPC=0000.01ff.f000.1f6c TSTATE=0000.0044.1500.0400

... I've looked online and in the service manual but I have no idea what is causing this error, it appears after what I think is the completion of POST perhaps?

...testing stuff...

Status ofthis POST run:PASS

manfacturing mode=OFF

Time Stamp [hour:min:sec] 00:25:26 [month/date year] 07/28 2006

Power On Selftest Completed

Status = 0000.0000.0000.0000 ffff.ffff.f00b.4378 0002.3333.0200.00Software Power ON

@(#) Sun Ultra 5/10 UPA/PCI 3.15 Version 2 created 1998/11/10 10:35

Clearing E$ Tags Done

Clearing I/D TLBs Done

Probing Memory Done

MEM BASE = 0000.0000.0000.0000

MEM SIZE = 0000.0000.0000.0000

MMUs

RED State Exception

...

I've looked on Google and people have had similar problems but no mention that I could see of a possible cause/solution, I've tried switching DIMMs in and out, reseating CPU, removng PCI cards, etc but to no avail... anyone wanna take a stab at what might be wrong here?

Thanks,

John

[2083 byte] By [SliceDog] at [2007-11-26 9:23:15]
# 1

the only reference to red hat exception on google has been to memory... do y ou have more than 2 sticks in it? if so, you can try 2 at a time... I don't think the u10 can take one at a time...

I hope you didn't spend too much for this thing... it won't be worth the headaches!!!!

good luck,

haroldkarl

haroldb at 2007-7-6 23:57:30 > top of Java-index,Sun Hardware,Workstations - General Discussion...
# 2

Thanks for the reply,

The U10 has 4 sticks; 3 x 64Mb and 1 x 128Mb DIMMs... I tried every combination of 2 I could think of with the same results (RED STATE)

On a hunch, I tried booting with no sticks of RAM, and with the exception of a error message telling me I had no ram, the POST/RED STATE happened the same way...

My guess is that it might be MMU related (because the last thing to be checked is the MMUs before the error).. so my question now is.. are MMUs part of the motherboard or CPU?

(And don't worry about spending too much for this, it cost me a whooping $15 canadian)

Thanks,

John

SliceDog at 2007-7-6 23:57:30 > top of Java-index,Sun Hardware,Workstations - General Discussion...
# 3

Hello John,

The U10 has 4 sticks; 3 x 64Mb and 1 x 128Mb DIMMs... I tried every combination of 2 I could think of with the same results (RED STATE)

you have to use pairs (same capacity) of DIMMs. Use a pair of the 64MB DIMMs to test.

Get another 128MB DIMM or better 2 or 4 128MB DIMMs (one as as spare) -- if the system is working otherwise get another U10 with (333 or 440MHz /2MB Cache) CPU and memory (128MB or 256MB modules).

The error might be caused by a bad CPU module, bad system board (error appears later due to a termic problem), bad memory module or bad power supply.

I tried booting with no sticks of RAM, and with the exception of a error message telling me I had no ram, the POST/RED STATE happened the same way...

I guess the CPU module is bad. Have you checked that none of the pins of the CPU module are bent or missing ?

These systems are very cheap today, except for the higher shipping charges, a complete system costs less than the individual components in sum.

Michael

MAALATFT at 2007-7-6 23:57:30 > top of Java-index,Sun Hardware,Workstations - General Discussion...