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Old 02-17-2014, 10:31 AM   #31
FishTail74
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It was a pain to un-wire things but I did, and discovered that the low-end TiVo Roamio power supply (brick) is only rated for 24 watts. And the ORIGINAL 500GB TiVo HDD is less than 2w, vs more than 8w on the upgraded HDD. So Being as the power supply is marginally strong enough to sustain the TiVo, it is possible at start up it struggles even more, and maybe this is the cause of the internal Blue light no-start-up issue.

This suggest that maybe the unit is fine, and I'm simply pushing it's power limit, so I think I'll keep it. I really don't want to return it because if I do I'll loose out on more than $200 of savings that I can't get any longer. (paid $400 total, for Roamio unit w/ LTS, due to a very special circumstance with an older unit, that they won't honor any more)

I appreciate all the good suggestions! But if anyone does directly know the answers to my questions, please do still reply. -Thanks!


Un-Answered Questions:
1) What's the INTERNAL blue light (on the motherboard) mean ?
(Current suspicion is it means "start-up prevented, due to low power", since upgraded HDD is 6.5 watts more, and power brick has only a 24 watt total rating)

Last edited by FishTail74 : 02-17-2014 at 12:37 PM. Reason: Updated based on inspection...
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Old 02-17-2014, 03:17 PM   #32
lessd
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Quote:
Originally Posted by FishTail74 View Post
It was a pain to un-wire things but I did, and discovered that the low-end TiVo Roamio power supply (brick) is only rated for 24 watts. And the ORIGINAL 500GB TiVo HDD is less than 2w, vs more than 8w on the upgraded HDD. So Being as the power supply is marginally strong enough to sustain the TiVo, it is possible at start up it struggles even more, and maybe this is the cause of the internal Blue light no-start-up issue.

This suggest that maybe the unit is fine, and I'm simply pushing it's power limit, so I think I'll keep it. I really don't want to return it because if I do I'll loose out on more than $200 of savings that I can't get any longer. (paid $400 total, for Roamio unit w/ LTS, due to a very special circumstance with an older unit, that they won't honor any more)

I appreciate all the good suggestions! But if anyone does directly know the answers to my questions, please do still reply. -Thanks!


Un-Answered Questions:
1) What's the INTERNAL blue light (on the motherboard) mean ?
(Current suspicion is it means "start-up prevented, due to low power", since upgraded HDD is 6.5 watts more, and power brick has only a 24 watt total rating)
Other people have upgraded the low end Roamio with 3Tb drive without problems, why yours ?
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Old 02-17-2014, 05:12 PM   #33
FishTail74
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Quote:
Originally Posted by lessd View Post
Other people have upgraded the low end Roamio with 3Tb drive without problems, why yours ?
I said "suspicion", because I don't know if this is the problem or not, I only suspect it.... But being as my problem is intermittent and only at start-up, an increase of 25% more demand on the power supply, it's not unreasonable to suspect it's on the edge of their "enough" power limit. Factor in that maybe my Towns VAC is on the low end vs the average, and the fact that I have something like 8 things plugged in to that 1 outlet (which might be above average)... to suspect that might pull the voltage down low enough to trip the problem half the time, isn't that far fetched. But I'm still hoping someone with facts will answer my below question, vs the rest of us speculating.

Un-Answered Questions:
1) What's the INTERNAL blue light (on the motherboard) mean ?
(Current suspicion is it means "start-up prevented, due to low power", since upgraded HDD is 6.5 watts more, and power brick has only a 24 watt total rating)
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Old 02-17-2014, 07:10 PM   #34
unitron
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If you've already replaced the original drive, even temporarily, then technically you've voided your warranty already.

Can you tell by looking at the original power supply for that TiVo if it puts out AC or DC and at what voltage?

Because if it's just a +12V DC supply, find another one (+12V DC supply) with the same connector (with the polarity wired the same way!!!!!) and more current capability and see if that makes the blue light go away.
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Old 02-17-2014, 09:08 PM   #35
FishTail74
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Un-Answered Question...

Thanks, but I'm not looking for any more random test ideas. It's an intermittent problem, and sometimes it takes a half hour just to get the problem to happen. So proving the problem isn't there, isn't easy.

At this point I'm just hoping to leave it clear that my question is still unanswered, in hopes that some day someone might come along with the answer. But thank you all for the input.


Un-Answered Question:
1) What's the INTERNAL blue light (on the motherboard) mean ?
(Current suspicion is it means "start-up prevented, due to low power", since upgraded HDD is 6.5 watts more, and power brick has only a 24 watt total rating)
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