[SOLVED] mwe 550w v2 ticking noise

[maverick5252]

hello everyone. my new mwe 550w v2 makes a strange ticking noise like a quartz clock .This only happens when the fan is still, under <10% load. at higher loads the fan starts spinning and the ticking noise is gone. Any help?

 

[jonnyguru]

Exactly. It's an appropriate sized psu for the pc load. But far too many are under the belief that bigger = better, therefore geniuses hoping to capitalize on that idiocy will take a 350w platform and add it all up to equal a 700w pos psu that sells for $39.99 and they'll label it SuperPower Plus Gold with 10 molex connectors and 1 6pin pcie and a 4pin EPS. That weighs @ 3 oz.

With a 550w psu, your 2% load requirement to kick in the 'tick' is @ 11w, which can usually be soaked up by fans, keyboard, mouse, gpu, cpu, motherboard in a high sleep mode, not the C-4 and lower sleep modes which really start shutting everything down fully, and not keeping it in a 'ready' state.

If you can add to the psu required output, it'll not see a load low enough to trip the burst mode and tick. With a better class 700w psu, or higher, that 2% would be set at @ 14w or more and just make it all the harder to bypass. In this case, the lower wattage psu is a benefit.

Ppl have been doing this for years, ever since Haswell release, disabling the lower sleep modes, because the psu created issues with waking from sleep at C-4 or lower. Dc-dc fixed that, but not everyone immediately went out and swapped out their somewhat new, group regulated psu.

The burst mode switches over @ < 10%. Not 2%.

The 2% number came up as a requirement to have efficiency of 70% at 2% load. But burst mode is not only at 2%. It's all the way up to 10% before it switches to resonant mode.

 

[maverick5252]

Exactly. It's an appropriate sized psu for the pc load. But far too many are under the belief that bigger = better, therefore geniuses hoping to capitalize on that idiocy will take a 350w platform and add it all up to equal a 700w pos psu that sells for $39.99 and they'll label it SuperPower Plus Gold with 10 molex connectors and 1 6pin pcie and a 4pin EPS. That weighs @ 3 oz.

With a 550w psu, your 2% load requirement to kick in the 'tick' is @ 11w, which can usually be soaked up by fans, keyboard, mouse, gpu, cpu, motherboard in a high sleep mode, not the C-4 and lower sleep modes which really start shutting everything down fully, and not keeping it in a 'ready' state.

If you can add to the psu required output, it'll not see a load low enough to trip the burst mode and tick. With a better class 700w psu, or higher, that 2% would be set at @ 14w or more and just make it all the harder to bypass. In this case, the lower wattage psu is a benefit.

Ppl have been doing this for years, ever since Haswell release, disabling the lower sleep modes, because the psu created issues with waking from sleep at C-4 or lower. Dc-dc fixed that, but not everyone immediately went out and swapped out their somewhat new, group regulated psu.

well i totally agree with you regarding to the overpowered psu,s and i did try to get a 400w psu. it seems to me that the 300w,350w 400w psu are vanished from the market.Concerning the burst mode it.s like jonnyguru explained it climbs up to 10%!

 

[Karadjgne]

Pretty much, because that's the upper end of OEM psus, and gaming pc's have gpus that'll require a little more 'umph'. You'll also see trends like x50 watt psus tend to be much higher rated and able, whereas x00 watt usually top out at mediocre. Not always the case, but there's many very good or better 450w/550w/650w/750w and almost no very good 400/500/600w/700w at all.

Ah, ok, thanks Jon for the clarification. I'm kinda hoping this thing doesn't become more popular in 2021+ psus, going to be a lot of ppl unhappy with psus that tick like a clock and could potentially change the balance of power when it comes to sales imho.

 

[Darkbreeze]

Or, you could simply buy a better power supply, that doesn't have this problem. Although, right now, that's probably not likely or perhaps even possible.

 

[maverick5252]

i.m surprised that this isn,t mentioned in the cybenetics labs report for this unit.

 

[jonnyguru]

i.m surprised that this isn,t mentioned in the cybenetics labs report for this unit.

It's because he's testing from a meter away.

What we do is test from a meter away, but also put a mic right up against the exhaust grill of the PSU and measure frequency response. That's how you pick up those annoying little chirps like this.

 

[maverick5252]

I just discovered that when i scroll the mouse wheel up and down the noise gets even more annoying.

 

[Darkbreeze]

https://forums.tomshardware.com/threads/mwe-550w-v2-ticking-noise.3608439/post-21765427

 

[Nils_Skills]

I just discovered that when i scroll the mouse wheel up and down the noise gets even more annoying.

I have the exact same, when I scroll and stuff. I have the same PSU but @ 750 watt

 

[maverick5252]

I have the exact same, when I scroll and stuff. I have the same PSU but @ 750 watt

yes, i heard many people complaining about the noise in 550 and 750w units . I dont get it , the psu is most of the time very quiet and works jut fine . but that damn ticks gets on my nerves !

 

[refillable]

yes, i heard many people complaining about the noise in 550 and 750w units . I dont get it , the psu is most of the time very quiet and works jut fine . but that damn ticks gets on my nerves !

Just do folding@home, it'll prevent your PSU from going into burst mode. It'll help with research as well so nothing gets lost.

 

[Darkbreeze]

LOL.