Badcaps.net Forum
Go Back   Badcaps Forums > Search Forums
Register FAQ Calendar Search Today's Posts Mark Forums Read

Showing results 1 to 25 of 500
Search took 0.03 seconds.
Search: Posts Made By: Per Hansson
Forum: General Capacitor Questions & Issues Yesterday, 12:57 PM
Replies: 119
Views: 57,446
Posted By Per Hansson
Re: How to Recondition (Reform) Electrolytic Capacitors and Why

That's not how it works, this is only to prevent failure.
There will be no improvement in the capacitor.
The only difference is if it did require reforming but you don't do it: Then it will fail...
Forum: Troubleshooting Computer Displays Yesterday, 05:21 AM
Replies: 19
Views: 2,001
Posted By Per Hansson
Re: Dead but clicking Hanns-G HC194D?

You might be able to do that but it could cause more damage too.
Better would be to lift the input leg of the 7812
Then power it up and see what voltage you have on the input then.
Forum: Troubleshooting Computer Displays 11-09-2021, 11:41 AM
Replies: 69
Views: 27,312
Posted By Per Hansson
Re: W241D (W240D) flickering Problem

A belated thanks to the both of you for visiting Badcaps.net!
Be interesting to hear about the improvement the extra bypass cap can make :)
Forum: General Electronics Technical Discussion 11-09-2021, 11:20 AM
Replies: 91
Views: 4,579
Posted By Per Hansson
Re: Has anyone had issues with Rayovac Alkaline batteries leaking

It is not that high, it is just the open circuit voltage.
I.e. with an actual load it comes down a bit, check the datasheets.
Forum: General Electronics Technical Discussion 11-06-2021, 02:33 AM
Replies: 91
Views: 4,579
Posted By Per Hansson
Re: Has anyone had issues with Rayovac Alkaline batteries leaking

I would use Energizer lithiums, they do have a higher open circuit voltage but if you want you can discharge them a bit to get a lower OCV.
Forum: General Computer & Tech Discussion 11-05-2021, 01:18 PM
Replies: 78
Views: 17,261
Posted By Per Hansson
Re: HMMM....What could this be.... ;) TC's first X8DAi Build!

Yup^^
Just realized it's 6 rearms too, and I guess you have to count the initial eval period too so that makes it over 3 years!
You can check remaining rearm count with: slmgr.vbs -dlv
Forum: General Computer & Tech Discussion 11-05-2021, 11:45 AM
Replies: 78
Views: 17,261
Posted By Per Hansson
Re: HMMM....What could this be.... ;) TC's first X8DAi Build!

Do remember you can also run "slmgr.vbs /rearm" up to 5 times.
I installed my Server 2016 machine in 2018-05-27 and I still have 104 days to go on my last rearm ;)
Forum: Troubleshooting Computer Displays 11-02-2021, 10:53 AM
Replies: 6
Views: 317
Posted By Per Hansson
Re: Acer Ferrari F-20" monitor display interference and replacement capacitor selecti

I would use the Wurth capacitor in this case, they do have a good price/performance ratio and I have not read anything bad about them yet...

That said if price is no concern then the United...
Forum: Troubleshooting Power Supplies and Power Supply Design 11-02-2021, 10:39 AM
Replies: 5
Views: 249
Posted By Per Hansson
Re: Antec BP500U APFC Coil

That is a FSP power supply, you may be able to use this thread linked below to at least judge the original color of the coil, as that narrows it down....
Forum: General Capacitor Questions & Issues 11-02-2021, 12:01 AM
Replies: 8
Views: 306
Posted By Per Hansson
Re: Dell Optiplex GX260 - Advice Needed for Polymodding Motherboard

That's probably fine but as you mentioned yourself be sure that the diameter and length is not an issue as those are 10mm caps.
As for servicing the PSU it is usually quite safe to work on a working...
Forum: General Capacitor Questions & Issues 11-01-2021, 01:56 PM
Replies: 8
Views: 306
Posted By Per Hansson
Re: Dell Optiplex GX260 - Advice Needed for Polymodding Motherboard

Forgot to write that, yes caps have a tolerance of 20% so you can pretty much call that as the same rating ;)
And +1 about the PSU, don't overlook it, and especially the small caps in such an old...
Forum: General Capacitor Questions & Issues 11-01-2021, 11:49 AM
Replies: 8
Views: 306
Posted By Per Hansson
Re: Dell Optiplex GX260 - Advice Needed for Polymodding Motherboard

Leakage you can ignore, Polymer caps have higher leakage than ultra low ESR electrolytic caps.
But as you have correctly found out those are not made anymore so they are not a possible choice......
Forum: General Electronics Technical Discussion 10-10-2021, 07:40 AM
Replies: 8
Views: 545
Posted By Per Hansson
Re: My Uni-T died... looking for a replacement

Well the big thing is what you are willing to pay?
The new Brymen BM789 (Or EEVBlog branded Brymen BM786) are very nice meters, more aimed at electricians.
The Brymen BM869 is more for electronics...
Forum: General Capacitor Questions & Issues 10-09-2021, 03:23 PM
Replies: 10
Views: 498
Posted By Per Hansson
Re: Cap replacement on a GA-8KNXP motherboard

That's a Pentium 4 board that supports up to Prescott 3.4Ghz according to Gigabytes website so I would say the CPU is VRM definitely running from +12v
And then the 3300F 6.3v caps supply the...
Forum: General Capacitor Questions & Issues 10-09-2021, 10:37 AM
Replies: 10
Views: 498
Posted By Per Hansson
Re: Cap replacement on a GA-8KNXP motherboard

Those will be more than good enough, you have made good choices.
The only way to reach parity or better is with solid polymer capacitors.
But they are more expensive.
Forum: General Electronics Technical Discussion 10-09-2021, 09:15 AM
Replies: 91
Views: 4,579
Posted By Per Hansson
Re: Has anyone had issues with Rayovac Alkaline batteries leaking

While we are on the subject of off topic: look at this picture, setting up a sign infront of the other stores sign.
Yea I can imagine that not ending well if they start trying to once over each...
Forum: Troubleshooting Computer Displays 10-09-2021, 01:55 AM
Replies: 20
Views: 1,996
Posted By Per Hansson
Re: Dell 2209wa - momentarily blinks every two seconds [ Video + Audio + Service Manu

Good work on getting it fixed!

I'm not sure if I misunderstood if this was a question but here you go:
With 230VAC RMS line voltage the rectified DC voltage will be: √2 x 230VAC = 325VDC
The...
Forum: Troubleshooting Power Supplies and Power Supply Design 10-09-2021, 01:45 AM
Replies: 1,699
Views: 433,958
Posted By Per Hansson
Re: the gutless, bloated, and fried power supply hall of shame

Agreed: putting the QC sticker on so carelessly like that.
WHAT where they thinking in an otherwise so immaculate build?:lolsign:
Forum: General Computer & Tech Discussion 10-04-2021, 12:58 PM
Replies: 10
Views: 640
Posted By Per Hansson
Re: best software to test a HITACHI 2.5" hard drive?

It does support some USB bridges, just not all of them:

https://www.hdat2.com/hdat2_faq.html#q16

Here is en example of an unsupported controller, but I can get it to work in Linux:
...
Forum: General Computer & Tech Discussion 10-04-2021, 05:26 AM
Replies: 10
Views: 640
Posted By Per Hansson
Re: best software to test a HITACHI 2.5" hard drive?

Looking at the SMART attribute data is always a good idea.
I like the software "HDAT2" for that.
Forum: Troubleshooting Audio Equipment 10-04-2021, 05:24 AM
Replies: 11
Views: 564
Posted By Per Hansson
Re: JVC CA-NXPS1 compact component system AC/DC charger

I would agree with SMDFlea: there is MTZJ20B, a 20v Zener (D802) that drops the incoming voltage to 20v for GVDD.
So you probably don't want to go much lower than 20v as that seems to have been the...
Forum: Troubleshooting Computer Displays 10-04-2021, 05:13 AM
Replies: 19
Views: 2,001
Posted By Per Hansson
Re: Dead but clicking Hanns-G HC194D?

Yes if you anyway need to order the parts do replace the main 400v capacitor too.
They do go bad, especially when the unit has a PFC booster stage.
Forum: Troubleshooting Computer Displays 10-03-2021, 12:58 AM
Replies: 19
Views: 2,001
Posted By Per Hansson
Re: Dead but clicking Hanns-G HC194D?

Normally this would be the small startup cap on the primary side that is dead (C8 or C10).
However I can visually see that the small green caps inside the heatsink (C62 for example) are bulging.
So...
Forum: Troubleshooting Computer Displays 10-03-2021, 12:51 AM
Replies: 20
Views: 1,996
Posted By Per Hansson
Re: Dell 2209wa - momentarily blinks every two seconds [ Video + Audio + Service Manu

I was going to suggest you to measure the voltage on the main bulk cap.
It should be around 400v when the PFC is working, or around 325v when it is not, so that would have been a tell-tale sign too....
Forum: Troubleshooting Computer Displays 10-02-2021, 03:46 PM
Replies: 20
Views: 1,996
Posted By Per Hansson
Re: Dell 2209wa - momentarily blinks every two seconds [ Video + Audio + Service Manu

It should not get crazy hot, however the datasheet says it dissipates 1W so it will not be exactly cold either.
Do check all the passive components around it, and if nothing bad found then I would...
Showing results 1 to 25 of 500

 
Forum Jump


Badcaps.net Technical Forums 2003 - 2021
Powered by vBulletin ®
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 09:28 PM.
Did you find this forum helpful?