Re: Power Supply Antec 500W + Mobo Questions

thanks gonzo0815

Actually I read FM as 0.26 and Suntec as 0.18. (missed the 0) but yes, there is a HUGE difference between 26 and 180.

What are the risks with a High impedance?

opernsys

Re: Power Supply Antec 500W + Mobo Questions

Hello gonzo0815

How did you calculate ESR?

Pana FM:
10V 1000uf 10x16
1790 ripple
0.026 Impedance
4000 hours

Suntan CD263
10V 1000uf 10x16
0.18 Impedance
615 ripple
2000 hours

opernsys

Re: Power Supply Antec 500W + Mobo Questions

Hello,

The ripple is 615, inpedance is 0.18: See:
I emailed Suntec who told me about this PDF.

Yes, I think I might replace the accessable caps with Panasonic FM's.

All voltages were taken from the hardware chips. I did not use a DMM/DVM.

Since my PC is important, I might just replace the PSU, and use this PSU in another space PC i will build once I re-cap my old spare mobo.

Thanks

opernsys

Re: Power Supply Antec 500W + Mobo Questions

Hello,

Well it's a warm day today (24oC). The Sys temp is at 33oC Chassis RPM @ 2800, CPU @ 37oC RPM fixed at 3100RPM.

Now, the PSU RPM is at 1500 RPM, which can go up to 3800RPM depending on temp (smart fan). So my PSU runs quite cool.

Going on this, Panasonic FM's should be OK?

Another note, I had the PSU Fan cable plugged into the mobo pickup labelled PSU Fan. Funny thing is I am not sure if this is a sensor, or something else because the mobo only has two RPM sensor according...

Re: Power Supply Antec 500W + Mobo Questions

Correction, the RPM values for the PSU were incorrect, i have the sensor connected to the chassis fan not PSU. I let the PSU cool down connected the PSU to sensor and the RPM Idle was approx 1400rpm. Tomorrow it should be warmer and I will get some better RPM figures. I am guessing my PSU does not get too warm, say 40oC tops.

opernsys

Re: Power Supply Antec 500W + Mobo Questions

Well looks like I will be opening to count how many caps need replacing if i am to re-cap everything below 1000uf.

I will open it up and see what i can re-cap easily. Some were is hard to get places, so I will just do the easy ones with good quality caps. If that doesn't work, screw it, i will get a new PSU.

The temp of the PSU (well the output air) is 34oC, the PSU RPM is around 2700-2800.

How should i measure PSU temp?

It seems that I can not get FC's. I also need 8mm 10V 1000uf....

Hello,

First off, great site. I hope i picked the right section to post in.

Anyway I have a PSU 500W Antec ATX (about 4 years old) that started playing up. The +5V rail was down to 4.3-4.5V so I opened it up and had a look around. I noticed that 2 caps had gone, so i replaced them with Suntan 105c 10V 1000uf (See which I got at my local electronics store.

After the re-cap, the +5V was at 4.9-5.1V, so I was over the moon.

1 Month later, over the last 2 weeks, the voltage has been getting lower and lower day by day. It currently around...