I have an Antec TP-550 connected to a Biostar TPower i45 and I am seeing a weird Post scenario.
When I first power up, posts fine and computer will run forever - no problems, no hiccups. If I restart, no problems at all. Restarts all day long. If i power down and try to power up again, mobo will not post - no error codes, nothing - lights are on but absolutely no post.
To get it to post again, I have to remove power from the PS and let it set for at least 15 minutes are so, and then it will post first time again with no problem. Even a minute or two later, if I power down the system and power up again, it will not post. I can remove power and plug back in a minute or two later and no post - I have to wait like before.
At first I thought memory, but there seems to be a time related issue with the PS itself. Anyone have any thoughts?
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That's a not uncommon problem. You have a flaky PSU. If it's new, RMA it.
Flaky is good in a pie crust, not so good elsewhere.
Flaky is indeed bad. I removed the TP-550 and put in an Antec Earthwatts 650 as a temporary test....
All works fine now. The question I wonder now is was 550 too small or was it a bad PS? Here is what is in there:
- Biostar TPower i45 - 1 sata dvd - 1 sata 320G - 1 ATI 4850 - 2 - 2G DDR2 1066 - Antec 300 case - running stock, no overclocking. - Antec Earthwatts 650 (will move to a Corsair 750 via RMA)
I don't think your system was underpowered. The general rule of thumb is a high qaulity 500 to 550 watt power supply with sufficient current (amps) on the 12 volt rail(s) can easily handle a system with any single video card made. In addition you do not have a power hungry system.
No. I do not think so. Inadequate power would have given you a different set of symptoms. This looks to be a control problem tied to the voltage monitoring circuits inside the PSU.
I am powering an OC'd Q6600, 4 GB RAM, an old 640 MB 8800GTS, and 3 drives with an old Antec 550 TP3. Everything runs reliably and cool.
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