Polymodding: Does it actually work?

[c_hegge]

http://hardwareinsights.com/poly-mod ... ally-work/

[shovenose]

Very interesting article

[Th3_uN1Qu3]

No IntelBurnTest? I'm disappointed. You should use that instead of Prime. Nice work on the motherboards, with the PSUs you probably confused the controller pretty bad. It can be made to work with changes in the feedback loop, but it's clear that poly modding a PSU by itself without any regard to other components, will not work.

[shovenose]

I'm curious, what changes would have to be done to make the polymer capacitors work in the power supply?

[c_hegge]

No IntelBurnTest? I'm disappointed. You should use that instead of Prime.

I would have, except that it doesn't run on some older PCs. IDK why, though.

with the PSUs you probably confused the controller pretty bad. It can be made to work with changes in the feedback loop, but it's clear that poly modding a PSU by itself without any regard to other components, will not work.

I know. I doubt it's worth the trouble of modding it, though, considering that good electrolytics are cheaper and will still last for ages.

[Th3_uN1Qu3]

I would have, except that it doesn't run on some older PCs. IDK why, though.

It runs on a PIII so i don't know what do you mean by "some older PCs". On the software side, it needs Net Framework 3.5 installed IIRC.

[c_hegge]

Ah, that may be it. I didn't install .Net framework on them. I would have expected it to give a more precise error message if that was the problem. All I got was "The application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem". I assummed it was probably a compatibility issue.

[Th3_uN1Qu3]

Ah, that may be it. I didn't install .Net framework on them. I would have expected it to give a more precise error message if that was the problem. All I got was "The application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem".

That's the standard net framework error message when the framework is not installed.

[Wester547]

Not to bump old threads, but....

These power supplies are very common in Compaq and HP branded computers, and I often run into them with a failed 5Vsb capacitor, which prevents the unit from starting. They usually use Teapo capacitors throughout the secondary side, although I occasionally come across units with LTEC capacitors. They use four 2200µF 16V (two on the 12V rail, two on the -12V rail), four 2200µF 10V (two on the 3.3V rail, two on the 5V rail), a 1000µF 6.3V and a 470µF 6.3V capacitor (both on the 5VSB rail).

5Vsb Filtering 1 1000µF 10V Teapo SC
1000µF 6.3V Nichicon FPCAP L8
5Vsb Filtering
1 470µF 10V Teapo SC
470µF 6.3V Sanyo OS-CON SEP

Were the original values 6.3V or 10V for +5VSB? Also, how come the "before" ripple is so much lower than that of the HP-D3057F3H review in very similar test conditions?

[c_hegge]

1. The caps were 10 V on the 5sb

2. They were different units and both were used. My guess is that the other one was older and had more worn out caps.