Issue with NAS: Repairable?

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I’ve got an issue with my QNAP HD251+ NAS. It fails to boot up properly. The QNAP troubleshooting webpage has this…
Problem #2: The NAS does not pass the POST (Power-On Self-Test).
Does the NAS produce a short beep about 5 to 10 seconds after being powered on? If not, the system has failed to pass the POST. The most common causes of this are a faulty motherboard or faulty RAM.

I certainly don’t get that beep suggesting an issue with motherboard or RAM. Is this repairable or not worth the bother on a 10-year old NAS? I’m guessing that I can salvage the discs (which I think are newer).

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I think the following is likely to yield better answers for this:

QNAP NAS Community Forum - Index page

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If it is 10 years old i would suggest replacing it.
Qnap have a compatability site where you can check if the drives in your NAS are compatable with another model. If they are just put them in and away you go again. I dont think it is cost affective or worth the trouble to replace motherboards even if they are available.

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One thing you could try is to remove the drives and see if it boots up then. If it does insert 1 drive and see if it is visable on the network. Failing this just replace it.

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Do you have a back up? You may get lucky and stick the disks in a newer qnap it might pick them up, but thats no guarantee sadly.

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Yes, all backed up :slight_smile:

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Could be a dead CMOS battery.

If your Nas has one. :grin:

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Perhaps try reseating the ram?

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I have one of these of a similar age too. I’ve just had to replace both the hard drives as one failed and in looking for a how to (or more likely what not to do) I came across a few comments of ‘Celeron disease’ in relation to these units which I took to mean failing processors or motherboards… Oh joy, I thought, but didn’t dig into it any further.

Fingers crossed it’s nothing like that but might be worth thinking of a replacement even if you are able to get it up and running again.

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Hi.
Log into your NAS and submit a ticket through the HelpCentre. I did this when I had an issue and QNAP where helpful and sorted the issue out, and it is all free.

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Perhaps you are experiencing the Intel CPU LPC Clock degradation issue, as I did with a QNAP TS-251 several years ago.

I repaired mine by adding a 100 ohm pull-up resistor, as described in the QNAP forum’s “TS-453 Pro stuck on system booting” thread (any model with an Intel CPU in the Silvermont family is vulnerable to this issue).

Even with the pull-up resistor repair, the problem can eventually reoccur as the LPC clock continues to degrade.

So once I was able to boot it up again, I recovered my files, and promptly sold it as-is, with a full disclosure of the issue and repair. And then I purchased a new NAS.

TLDR; Replace it with a current model, which will have a newer CPU and not be subject to this particular failure.

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As per @Tamarin post. This model definitely has this failure. If you’ve kept up with the latest firmware revisions the disks 1 and 2 can be booted in a new QNAP.

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