Hold time

[Max0r]

From time to time the power to this apartment flickers momentarily off and back on (you can see it in the lights). Sometimes it'll do this several times in the span of a couple minutes.

My main system is powered by a PCP&P 510 SLI, and doesn't restart, it keeps on tickin. My secondary system is powered by an FSP AX500-A and always restarts when this happens.

The 510 has a hold time spec of 20ms, the FSP a hold time spec of 16.6ms.

Has anyone else noticed certain PSUs tend to withstand power flickers better than others? What are their hold times/models? Certain PSU OEM's do better?

[shirker]

if your power tends to go out like that, I'd wonder why you aren't using a UPS yet. I'd imagine the less power draw your computer is current pulling, the longer the hold time. where ayou getting those 20ms/16.6ms specs?

[thideras]

if your power tends to go out like that, I'd wonder why you aren't using a UPS yet. I'd imagine the less power draw your computer is current pulling, the longer the hold time. where ayou getting those 20ms/16.6ms specs?The specs are presented by the manufacturer.


I'd second getting a PSU, it will help when you get brownouts like that.

[shirker]

The specs are presented by the manufacturer.

I'd second getting a UPS, it will help when you get brownouts like that.fixed :p
manufacturer specs? figures, it's one of those bits of information you really have to go digging for to find, since I've never come across a hold time specification when I was looking for a psu

[Max0r]

Good points gentlemen.

I hear hold-time is also a key factor when using a UPS. Supposedly it takes a certain number of milliseconds for the UPS to kick in to battery mode when power goes out.