My Antec TP-650C PSU keeps tripping off intermittently.

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kenwaldmann

kenwaldmann

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Mar 28, 2014
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My Antec TP-650C PSU keeps tripping off intermittently, usually when unattended and idle, and usually at night. I have to turn the PSU off then on again to reset it. Sometimes it will go for days without tripping. It's not overheating and not overloaded. It's in the basement, which is cool and it's winter so the air is dry. Any ideas? It's still under warranty. Perhaps I should just return/exchange it? I'd hate to disconnect and ship it back it if I don't have to.
 
Solution
antec support
Hi,

That UPS is the problem. It is a simple stepped sinewave type. That is the lowest category of UPS. better is simulated sinewaave and best pure sinewave. Many PSUs of any type have issues with stepped Sinewave and to some degree with simulated sinewave. The degree of issues varies upon circuitry and tech used in any given PSU. (Commonly, people think it has only to do with Active PFC parts being incompatible, but that is wrong)

So long story short, the PSU is ok, it just gets tripped by the stepped sine-waves of the UPS. So either you drop the UPS or use a better one or try a different type PSU. But the PSU is not faulty.

Also as a tip, common rule of thumb for sizing the UPS is 150% of PSU wattage => 650*1.5 = 975 VAC.

Sorry and...
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Thanks for your suggestion and fast reply. I've only checked the connections to the hard drives, as they are a little tight on the turns. I'll check the connections to the MB and and other hardware. (BTW, I neglected to mention that I have another PC that's used the same UPS without problems, so I doubt it's caused by problems with the input power.)
 
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I RMA'd the PSU to Antec, who sent me what appears to be a brand new unit. (There was no message from Antec either with the unit or via email.) The replacement PSU is exhibiting the same shut-down problem. I'll try to check any other possible sources of the problem before I pursue again with Antec on the assumption that it is unlikely that multiple units would have the same problem. Unfortunately, it usually takes hours or days before the problem recurs, making testing a lengthy process.
 
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Hi,

Can you take a picture of the set-up and give a component list. 2 failing units is quite unusual. Either there is something wrong with the set-up or the TP-650C is not compatible with your UPS.

please email again to europe.rma@antec.com .

Thanks and regards.
 
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Here's the component list, as requested, in no particular order. I will copy to <europe.rma@antec.com>:

- ASUS GT610-SL-1GD3-L Silent 1GB DDR3 Low Profile Graphics Card
- Gigabyte AM3+ AMD 970 SATA 6Gbps USB 3.0 ATX DDR3 1800 AMD Motherboard GA-970A-UD3P
- ASUS 24X DVD Burner - Bulk 24X DVD+R 8X DVD+RW 12X – OEM
- AMD FX-6300 Vishera 3.5GHz (4.1GHz Turbo) Socket AM3+ 95W Six-Core Desktop Processor FD6300WMHKBOX
- ZALMAN Z12 Plus Black Steel / Plastic ATX Mid Tower Computer Case
- Antec TruePower Classic series TP-650C 650W 80 PLUS GOLD Certified Power Supply
- G.SKILL Sniper Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1866 (PC3 14900) Desktop Memory Model F3-14900CL9D-8GBSR
- Crucial M500 240GB SATA 2.5" 7mm (with 9.5mm adapter) Internal Solid State Drive CT240M500SSD1
- TP-LINK TL-WDN4800 Dual Band Wireless N900 PCI Express Adapter, 2.4GHz 450Mbps/5Ghz 450Mbps
- 1 – Hitachi 1TB HDD
- 1 – Hitachi 500GB HDD
- 1 – Samsung 1TB HDD
UPS - APC Back-UPS ES 750
 
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Hi,

That UPS is the problem. It is a simple stepped sinewave type. That is the lowest category of UPS. better is simulated sinewaave and best pure sinewave. Many PSUs of any type have issues with stepped Sinewave and to some degree with simulated sinewave. The degree of issues varies upon circuitry and tech used in any given PSU. (Commonly, people think it has only to do with Active PFC parts being incompatible, but that is wrong)

So long story short, the PSU is ok, it just gets tripped by the stepped sine-waves of the UPS. So either you drop the UPS or use a better one or try a different type PSU. But the PSU is not faulty.

Also as a tip, common rule of thumb for sizing the UPS is 150% of PSU wattage => 650*1.5 = 975 VAC.

Sorry and regards,
 
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Solution


I appreciate your quick and informative response. This is the first PSU that has had a problem with the APC Back-UPS ES 750. It seems that there's no inexpensive solution - either I obtain a more expensive UPS, or I go with a different PSU (not knowing if that one will have a problem with the UPS.) I'll have to do some research before I decide what to do next. In any case, I now know what causes the problem. Thank you for your help!
 
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That PSU and UPS are in the cold basement can also be an issue. Both have starting operating temp of 0C. Dont know how cold it can get at night there. But you write that it happens mostly at night, maybe move it to a warmer place (5C) moght reduce the tripping.
 
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I am thinking in buy a psu like this. I am making some searching and I saw this post.
I have to say that this commitment, this "want to resolve" that you antec show in this post made my doubts be more clear, I will buy this PSU.

I have a gigabyte 990 xa ud3, fx 8230, sapphire r9 280, 1 ssd and 2hdd. And a antec 300 case with 5 fans.
What do you think???, this PSU its good for me ???
Thanks

One more question: I have a Antec 300 1st edition case, should i put the psu fan UP or Fan Down due to the especifications of the case !!! ???
 
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