Hi,
i have a Sunray SR4 triple tuner with big problem. After 5 minute (sometiems during startup) FTP does not work, telnet connection does not work, crashing, opkg does not work, if i try to download a plugin through Plugin Panel (Green Button) i see (No new Plugin found).
I tried various images(Oplenpli 4.0) with flashing via http or Dreamup BSD but without solution. (other people said me the problem is RAM).

Please Help Me!

Mem test...

Test the box without the tuner.
See if it's keep working with Iptv, or some hd movie file from a hdd or usb stick.

This is memtest:

root@dm800se:~# memtester 80
memtester version 4.1.3 (32-bit)
Copyright (C) 2010 Charles Cazabon.
Licensed under the GNU General Public License version 2 (only).

pagesize is 4096
pagesizemask is 0xfffff000
want 80MB (83886080 bytes)
got 80MB (83886080 bytes), trying mlock ...locked.
Loop 1:
Stuck Address : ok
Random Value : ok
Compare XOR : ok
Compare SUB : ok
Compare MUL : ok
Compare DIV : ok
Compare OR : ok
Compare AND : ok
Sequential Increment: ok
Solid Bits : ok
Block Sequential : ok
Checkerboard : ok
Bit Spread : ok
Bit Flip : ok
Walking Ones : ok
Walking Zeroes : ok

Loop 2:
Stuck Address : ok
Random Value : ok
Compare XOR : ok
Compare SUB : ok
Compare MUL : ok
Compare DIV : ok
Compare OR : ok
Compare AND : ok
Sequential Increment: ok
Solid Bits : ok
Block Sequential : ok
Checkerboard : ok
Bit Spread : ok
Bit Flip : ok
Walking Ones : ok
Walking Zeroes : ok

Loop 3:
Stuck Address : ok
Random Value : ok
Compare XOR : ok
Compare SUB : ok
Compare MUL : ok
Compare DIV : ok
Compare OR : ok
Compare AND : ok
Sequential Increment: ok
Solid Bits : ok
Block Sequential : ok
Checkerboard : ok
Bit Spread : ok
Bit Flip : ok
Walking Ones : ok
Walking Zeroes : ok

root@dm800se:~# echo $?
130

Did you tried as asked by Johnny, to remove the Tuner from the box, and use it for IPTV and playing recordings ?

This is an important test, and needs to be done not only few minutes but much longer as it seems as per your description that the problem comes after 5 minutes.

Your mem test should be done also after these 5 minutes, when problems seems to appear.

Admin

removing the tuner, it seems to work. Plugin ok, IPTV and mediaplayer ok but with continuos crash!! I have not solved anything. after crash memtest see me:

root@dm800se:~# memtester 80
memtester version 4.1.3 (32-bit)
Copyright (C) 2010 Charles Cazabon.
Licensed under the GNU General Public License version 2 (only).

pagesize is 4096
pagesizemask is 0xfffff000
want 80MB (83886080 bytes)
got 80MB (83886080 bytes), trying mlock ...locked.
Loop 1:
Stuck Address : ok
Random Value : ok
Compare XOR : ok
Compare SUB : ok
Compare MUL : ok
Compare DIV : ok
Compare OR : ok
Compare AND : ok
Sequential Increment: ok
Solid Bits : ok
Block Sequential : ok
Checkerboard : setting 61Killed


how do I proceed?.

If the removal of the tuner not helps, and in this case the memory seems to work.

Than it could be the wifi network, or at least related to the network.
See if it helps if you disable the wifi network.
Some receivers have this option in the bios if it's build onboard.

nothing! same problem! but i see on motherboard 5 red led:
-OFF D201
-ON D200
-ON D202
-OFF D204
-ON D203

Motherboard status leds are controlled by the cpu and the behavior could be different than the older receivers due the difference of programming which is programmed into the cpu.
In any case, I can not tell if it says something.

But..
1. without the tuner does not help.
2. No wifi either.
3. Memory Test indicates that it is good.

What remains is ..
Nand flash chip, upload an image file with bad sectors recovery enabled, and see if it has bad sectors ..

If not, then it may be a poor/low voltage output of one of the DC to Dc IC's.

And otherwise, it is a more difficult, probably a not be solvable problem as a problem with the cpu.
This is not repairable because the appropriate cpu's are difficult, most likely can not be found.
Older dm800se cpu's won't work on the newer (Sunray/Estar) motherboards.
They are different programmed and locked for reprogramming.

i tried to flahs with bad Sector recovery with JapharFlasher but I have not seen any bad Sector (if they were present, where they saw?).

i think the solution will change the motherboard....

If you think you are not capable of replacing some parts on the motherboard, as suggested by Johnny, replacing the full motherboard would be the next solution instead of repairing it, but sunray looks like be more and more bad quality, so be careful on what you will buy.

TS