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  HTPC restarting 
 
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Bungle Oct 13, 2010, 02:38pm EDT Reply - Quote - Report Abuse
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Edited: Oct 13, 2010, 02:41pm EDT

Replies: 2 - Views: 1492
I have an issue with my HTPC restarting whenever i'm using my entertainment center to play music loud music.

I'm relatively certain that its some sort of power issue simply because it only happens when the music is turned up loud and contains a substantial amount of bass. I'm just not sure how exactly I can address this issue. All this stuff is setup on a single 20amp circuit and without gutting my living room thats all I have to deal with.

The setup includes these components.

HTPC:

C2D E6600 @ 2.4GHz (stock)
Gigabyte P45 motherboard
4GB DDR3 RAM
Corsair VX 450w PSU
Radeon 4350 video card

TV:

65" Samsung DLP

Audio: 6.2 surround sound

Onkyo TX-SR806 Reciever (130w x7)
Polk Audio VM20 Speakers x3 (front LRC)
Polk Audio VM10 Speakers x3 (rear LRC)
Polk Audio DSW PRO 600 Subs x2 (12" 500W)

Would a power conditioner or a UPS be enough to electrically isolate the HTPC from the rest of the system? Would a bigger PSU in the HTPC be enough to take care of this? any other thoughts or ideas?


Core i7 4770K @ 4.4GHz | Corsair H110 | Gigabyte GA-Z87X-UD5H | 32GB 1866MHz Corsair Vengeance
2x EVGA GTX 780 SLI | 256GB OCZ Vector SSD | 4TB Hitachi 7K4000
Corsair AX1200 PSU | Corsair 650D | Windows 7 Ultimate x64
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john albrich Oct 14, 2010, 02:16am EDT Reply - Quote - Report Abuse
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Edited: Oct 14, 2010, 02:31am EDT

 
>> Re: HTPC restarting

A UPS with Automatic Voltage Regulation (AVR) would be a good step in general.

Does the system go through any kind of shut-down/hibernation/saving settings sequence or does it just suddenly switch-off and restart as though the power failed?

But if you haven't done so already, you might take a few moments to check to see if your problem is mechanical. There's a chance the the power or reset switch (if you have one) is sensitive enough to be triggered by really heavy bass vibration especially if near or on a woofer. I've seen a couple reset buttons at "hair-trigger"...just barely touching them caused the systems to do a reset. Depending on how you have your power button configured might make a difference, too. Or, it could be simply that a connector/wiring is loose enough that vibration makes it appear as a state-change to the system and it starts the process...or even an internal power connection/wiring could be loose. IF your PSU has a 110/220 select switch you might gently tap it and make sure it's not defective, and WHILE THE PSU IS UNPLUGGED FROM AC MAINS, switch the 110/220 selector back and forth a few times and then set it back to the right voltage.


edit to add:
You might also check the Event Viewer to see if anything in-common was entered by the system at the time of the restarts. Might say why a restart was triggered. Depending on the OS:
Start>Settings>ControlPanel>AdministrativeTools>EventViewer


edit to add:
Just noticed in your sig you have Vista. If that's on your HTPC too...
Start>Control Panel>System and Maintenance>Administrative Tools>Event Viewer

Bungle Oct 14, 2010, 11:43am EDT Reply - Quote - Report Abuse
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>> Re: HTPC restarting
john albrich said:

Does the system go through any kind of shut-down/hibernation/saving settings sequence or does it just suddenly switch-off and restart as though the power failed?


It just immediately restarts like someone walked up and pushed the reset button.


john albrich said:

But if you haven't done so already, you might take a few moments to check to see if your problem is mechanical. There's a chance the the power or reset switch (if you have one) is sensitive enough to be triggered by really heavy bass vibration especially if near or on a woofer. I've seen a couple reset buttons at "hair-trigger"...just barely touching them caused the systems to do a reset. Depending on how you have your power button configured might make a difference, too. Or, it could be simply that a connector/wiring is loose enough that vibration makes it appear as a state-change to the system and it starts the process...or even an internal power connection/wiring could be loose. IF your PSU has a 110/220 select switch you might gently tap it and make sure it's not defective, and WHILE THE PSU IS UNPLUGGED FROM AC MAINS, switch the 110/220 selector back and forth a few times and then set it back to the right voltage.


hmmm... I didn't think of that. Maybe I'll try and simulate the vibration by stomping on the floor next to the system and see if I can trigger a restart that way.


john albrich said:

Just noticed in your sig you have Vista. If that's on your HTPC too...
Start>Control Panel>System and Maintenance>Administrative Tools>Event Viewer


The HTPC uses XP Pro

Core i7 4770K @ 4.4GHz | Corsair H110 | Gigabyte GA-Z87X-UD5H | 32GB 1866MHz Corsair Vengeance
2x EVGA GTX 780 SLI | 256GB OCZ Vector SSD | 4TB Hitachi 7K4000
Corsair AX1200 PSU | Corsair 650D | Windows 7 Ultimate x64

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