jonnyGURU Forums
Home Site Search Reviews Articles Contest Links PSU FAQs  

Go Back   jonnyGURU Forums > Computer Hardware > PC Power Supply Discussion

PC Power Supply Discussion Troubleshooting and discussion of computer power supplies

Thread Tools Display Modes
Old 09-21-2007
Oranje Oranje is offline
200W User
Join Date: Sep 2007
Location: Netherlands
Posts: 31
Thanks: 0
Thanked 0 Times in 0 Posts
Default ,,Stupid,, question.


Did annybody know which haetsinks are the ,,high voltage switching transistor heatsinks ,, in the 1000 watt unit from pc-cooling?

Are they one of the 3 big ones on top?
Ore the ,,tiny,, ones ,,downstaers,,?

Well i ask them

Is there any sort of current on the cooling-fins of the 1000 Watt unit?

The rason i ask is becouse i want to watercool this unit by adding a copper-plate with copper-tubing on these fins.

Tolgehter with a fan running on 5 volt

I know that i lost any warrent by doing that butt i dont care for that.

Looking forward to hear something from you.

And they replay

We do not recommend doing what you are trying. The output diode heatsinks are grounded but the high voltage switching transistor heatsinks are floating. Please do not connect the two. This can cause a serious safety issue


BTW great service overthere by pc-cooling
Mail this morning and few hours later this repl. GREAT
Core2Duo 6600
GTX 280
Gigabyte DQ6 P35
2GB 1060 GEIL
All watercool incl psu PC Power&Cooling 850

Groetje,s Oranje
Reply With Quote
Old 09-21-2007
jonnyGURU's Avatar
jonnyGURU jonnyGURU is offline
Site Founder
Join Date: Oct 2006
Location: jonnyGURU forums, of course!
Posts: 15,186
Thanks: 485
Thanked 1,962 Times in 1,215 Posts

He's right.

Im my past designs (that I may have to pick up again) for water cooled PSU's, I had TWO water blocks (one on the secondary and one on the primary) connected only with a non-conductive hose.

It's not that you'll zap anything BECAUSE you're grounding the two sinks together. That's harmless. The fun begins if and when something dies on the primary, grounding a hot AC lead and that crosses over to the DC side and kills everything hooked up to it (CPU, GPU, hard drives, user, etc.)
Rest in peace Mike Clements, aka "Yellowbeard"

Rest in peace Joerg Theissen, aka "GI Joe"
Reply With Quote
Old 09-23-2007
Per Hansson's Avatar
Per Hansson Per Hansson is offline
1kW User
Join Date: Jul 2007
Location: Sweden
Posts: 334
Thanks: 14
Thanked 40 Times in 31 Posts

Yea, agreed fully with the guru^^

Also, even connecting two blocks (i.e. both primary and secondary side of the power supply) is a safety hazard

Water isn't a good conductor of electricity but I sure would not like to risk getting live current inside the computer, or it's chassi for that matter.

Edit: You should also keep in mind that when the PSU goes through real testing (like S marking for Sweden) It gets exerted to a really heavy test. One is what happens when lightning hits it. The transformers must be able to withstand 2kV without arching over to the secondary side. Needless to say not many Deer PSU's pass testing :P

Last edited by Per Hansson; 09-23-2007 at 04:16 AM.
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Stupid electrical math question jonnyGURU Electronic Theory and Principle 30 08-18-2018 09:33 PM
Quick, stupid, repetitive....."Will this PS work for me?" question... C'DaleRider PC Power Supply Discussion 9 02-04-2009 10:40 AM
Risky or stupid? ryan_975 PC Power Supply Discussion 8 02-29-2008 08:58 PM
Stupid luck? Mugzy PC Power Supply Discussion 8 03-14-2007 05:46 AM
yeap, people are stupid. PaulTa Off Topic 24 02-20-2007 08:57 AM

All times are GMT -4. The time now is 09:34 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Copyright © 2000 -