[HOW TO] Recover no beep / dead Intel based Qnap x53/x51 (2014~2016?)

[Droopie007]

Hello, I have a 451, few years old now. Booting works, but from the beginnening at startup I have 3 Red HDD leds and 1 blue USB led. I have 4 hdd's in the unit, but only two of them are working, 1 and 2. 3 and 4 nothing works, even if I swap the tested HDD's. At startup I hear a click and immediately the three red hdd ligts and 1 blue USB. Can I fix this problem with the 100 ohm resistor? I already changed battery CR2032, still the same problem.

Thanks for help / info.

Kind regards.

Eugène

[dolbyman]

Sounds more like booting does NOT work...no?

Try the 100Ohm resistor and test again

[Droopie007]

When I mount only one drive in sata 1, then everything is working fine.

[dolbyman]

So did you try the resistor?

It could be a HDD power mosfet issue as well if the problem comes up with more than one HDD

[Koepa]

Hi everybody,
Since monday i am part of the family. No beep, no green, just red lights. The problem occurs on a TS- 453U rack system. So the design of the board is different from the described solutions here.

Does anYone have an idea where to find the connector on the board to apply the 100 ohm trial?

I really appreciate your help.

[dolbyman]

Post some pictures so we can have a peek

[Koepa]

Here are some pictures of the mainboard. Hope that helps.

[Koepa]

To whom it may concern - good news to my LPC problem on TS-453U-RP. I found the location of the LPC and was able to bridge with the ominous 100 Ohm resistor. The solutions works fine for me - the system is up and running. Please see the following fast forward solution on the pic.

[afleischer]

Another QNAP back from the dead here! I've got a TS-251+ that was failing to boot entirely, and the LPC-CN1 pins were underneath the metal frame that the hard drive chassis attaches to. I had to remove the hard drive chassis and then remove the circuit board from the frame to be able to access the pins easily. Then I just soldered a 100 Ohm resistor to pin 1 and pin 8, put everything back together, and the NAS is now running normally! Worth noting: there was no pin 10 on this board, just an empty socket, so I'm guessing that's the default for this board. Backing up now, and we'll see how much extra life this fix manages to eke out of my QNAP.

[theycanrun]

Big up Yujung and this thread as a whole - just recovered a 853 pro unit, bridged 100 ohm resistor to the chassis screw hole as suggested by the other guy who mentioned this model. Easier than going to pin 8.
Backing up everything to a JBOD scenario for the time being, but wondering what new model I should get with similar functionality.

[dolbyman]

Similar functionality as in....simple data storage ? Check the migration guide what 8+ bay you can swap over to (if you want to migrate the disks)

[afleischer]

Another QNAP back from the dead here! I've got a TS-251+ that was failing to boot entirely, and the LPC-CN1 pins were underneath the metal frame that the hard drive chassis attaches to. I had to remove the hard drive chassis and then remove the circuit board from the frame to be able to access the pins easily. Then I just soldered a 100 Ohm resistor to pin 1 and pin 8, put everything back together, and the NAS is now running normally! Worth noting: there was no pin 10 on this board, just an empty socket, so I'm guessing that's the default for this board. Backing up now, and we'll see how much extra life this fix manages to eke out of my QNAP.

Well, it turns out the fix gave me about 3 weeks of functionality before the NAS failed to boot again. I'm going to try using a 150 Ohm resistor instead of the 100 Ohm one I originally used to see if that brings it back again, because of course I didn't back up the drives when it came back from the dead. I figured the follow-up would be useful for anyone wondering what the minimum amount of NAS lifetime might be after resurrection.

[PIRATA!]

The detail is in the link from the original post

QNAP TS-453 Pro stuck on "SYSTEM BOOTING"
viewtopic.php?f=45&t=135089&start=150#p767546

Scope or measure the LPC-CN1(10-pin connector, next to 4-pin COM1 connector), pin 1 (LPC CLK, normal ~1.7V)
If the voltage is ~2.4V, solder 100 Ohm between pin 1 (LPC CLK) and ground (pin 8 or 10).
If the voltage is <1V, solder 100 Ohm to a 3.3V pin(since this does not apply to me, someone would have to spend time to find/test it).

So did you try the resistor?

It could be a HDD power mosfet issue as well if the problem comes up with more than one HDD

So let me get this straight.
I have a TS-251+ and I might consider my self lucky for not having any issue till now, right?

I have read the open post and frankly understood not that much, rather than the fix consists in placing a 100 Ohm resistor between pins 1 and 8.

But I have a few questions (the first is for yujungchang and the second one is for dolbyman):

1) Why is the guy you mention in your first post talking about Hight Side and Low Side Clock Failure, with two different pinout solutions??
Source: https://youtu.be/UeiphU73ubo

2) When you speak of HDD power mosfet issue, do you refer to the fix by replacing the AP4957AGM transistor on the hdd card pcb?
Source: https://youtu.be/STxDPAxd3L0

Said so, how should I recognize which issue I have and consequently which fix should I apply??
I don't have (apparently) any issues for now, but I would like to start investigate for signs, but I don't understand how to start.
My unit is from that years of production, but I built my machine 7+y after that time, so I might have some extra time left, and I would like to prepare my self, maybe even in changing the unit.

Btw, is there a list of non-affected QNAP models somewhere so to look into a possible alternatives?
Would it be possible to get a 2-bay unit in which just place my drives into and boot up with not having to set up everything from scratch?

Thank you.

[dolbyman]

the mosfet issue is discussed gere

viewtopic.php?f=25&t=134212

and the migration guide is here

https://www.qnap.com/en-us/nas-migration

[PIRATA!]

Thank you very much.

Can you point me a valid list of all QNAP models that are NOT affected by ANY hardware bug/issue, so to be considered SAFE models?

Thank you.