5V dummy load - what to use?

Chill-X · 12-21-2000, 10:34 PM

Well I found out that in order to get more than 1 amp out of the 12V line at 12V on my AT PS, I need a load on the 5V line.

So, what should I use as a dummy load (Need about 4-6 amps at 5V)? I currently grabbed all the 12V lights I could find and hooked them to 5V - that only got me about 3.5 amps, and not very practical. But I did get 7 amps out at about 11.9V that way.

Any ideas? Hopefully any cheap and/or creative ones?

Kevin · 12-21-2000, 11:51 PM

Someone once suggested a lightbulb to me...

Joe · 12-22-2000, 12:59 AM

Someone sudjested a Rheostat to me...

Chill-X · 12-22-2000, 01:13 PM

Now that I think about it, do some vehicles use a 6V power source (like motorcycles?)?

Anyway, I'll look for some high power 6V bulbs today.

I was already thinking of using a resistance load - but that doesn't do anything else useful.

Any other ideas?

Cryonosis · 12-22-2000, 08:19 PM

how about some neon lights?

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Chill-X · 12-22-2000, 11:41 PM

Well I picked up some 25W 1 ohm resistors today - they burn off plenty of power - especially if I use two of them in parallel. But they get damn hot! Duh! They come in a ceramic package - wonder why (scarcastically). I wonder if oven elements are made out similar materials.

In order to keep the temps on those tolerable (so I don't burn myself), I strapped two onto a celeron slot one heatsink I had laying around, and added a fan. But where should I put this heat producing package now? I was thinking inside the P/S, but it's just a bit too big.

But I know 50W of lights would be hot as well. Oh well.

Joe · 12-23-2000, 02:01 AM

Slap on a 5V Pelt and cool yer Chipset with it

( I am pondering that right now for DH3's setup)

Chill-X · 12-23-2000, 06:06 PM

Well I did see that RadioShack has 8V Max TECs in theinr newest catalog (special order), but are rather expensive. I suppose these will work at 5V and do a decent cooling job, but where can I get some more cheaply?

Joe · 12-24-2000, 12:40 AM

Tedist?

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C-ya
Joe - Owner/Editor
www.ProCooling.com
Where the Completely Addicted Come to Cool Off

Somebody set up us the bomb.

Kevin · 01-04-2001, 10:00 PM

Hmmm. Who thought of 5v pelts

?

Quote:

Originally posted by Joe:
Slap on a 5V Pelt and cool yer Chipset with it ( I am pondering that right now for DH3's setup)

mfpmax · 01-04-2001, 10:33 PM

You can proably get low voltage TECs cheap from some surplus site.

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Watercooled K6-2 450 at 600

Austin · 01-05-2001, 12:19 AM

I tried 2 hard drives on a 300 watt AT power supply. The 122 Watt pelt does not get enough juice to perform better than without the pelt. Take a look at this power supply: http://www.mpja.com/product.asp?product=12611+PS

12-21-2000, 10:34 PM	#1
Chill-X Cooling Neophyte Join Date: Dec 2000 Location: Tucson, AZ, USA Posts: 27	5V dummy load - what to use? Well I found out that in order to get more than 1 amp out of the 12V line at 12V on my AT PS, I need a load on the 5V line. So, what should I use as a dummy load (Need about 4-6 amps at 5V)? I currently grabbed all the 12V lights I could find and hooked them to 5V - that only got me about 3.5 amps, and not very practical. But I did get 7 amps out at about 11.9V that way. Any ideas? Hopefully any cheap and/or creative ones?

12-21-2000, 11:51 PM	#2
Kevin Slacking more than your weird uncle Join Date: Nov 2000 Location: San Diego, CA (UCSD) / Los Angeles, CA (home) Posts: 1,605	Someone once suggested a lightbulb to me...

12-22-2000, 12:59 AM	#3
Joe The Pro/Life Support System Join Date: Dec 1999 Location: Denver, CO Posts: 4,041	Someone sudjested a Rheostat to me...

12-22-2000, 01:13 PM	#4
Chill-X Cooling Neophyte Join Date: Dec 2000 Location: Tucson, AZ, USA Posts: 27	Now that I think about it, do some vehicles use a 6V power source (like motorcycles?)? Anyway, I'll look for some high power 6V bulbs today. I was already thinking of using a resistance load - but that doesn't do anything else useful. Any other ideas?

12-22-2000, 08:19 PM	#5
Cryonosis Cooling Savant Join Date: Nov 2000 Location: Idaho, and that's all your gonna get : ) Posts: 101	how about some neon lights? ------------------ ©×××××§=============== »»»»»»»»Cryonosis««««««««« ©×××××§===============

12-22-2000, 11:41 PM	#6
Chill-X Cooling Neophyte Join Date: Dec 2000 Location: Tucson, AZ, USA Posts: 27	Well I picked up some 25W 1 ohm resistors today - they burn off plenty of power - especially if I use two of them in parallel. But they get damn hot! Duh! They come in a ceramic package - wonder why (scarcastically). I wonder if oven elements are made out similar materials. In order to keep the temps on those tolerable (so I don't burn myself), I strapped two onto a celeron slot one heatsink I had laying around, and added a fan. But where should I put this heat producing package now? I was thinking inside the P/S, but it's just a bit too big. But I know 50W of lights would be hot as well. Oh well.

12-23-2000, 02:01 AM	#7
Joe The Pro/Life Support System Join Date: Dec 1999 Location: Denver, CO Posts: 4,041	Slap on a 5V Pelt and cool yer Chipset with it ( I am pondering that right now for DH3's setup)

12-23-2000, 06:06 PM	#8
Chill-X Cooling Neophyte Join Date: Dec 2000 Location: Tucson, AZ, USA Posts: 27	Well I did see that RadioShack has 8V Max TECs in theinr newest catalog (special order), but are rather expensive. I suppose these will work at 5V and do a decent cooling job, but where can I get some more cheaply?

12-24-2000, 12:40 AM	#9
Joe The Pro/Life Support System Join Date: Dec 1999 Location: Denver, CO Posts: 4,041	Tedist? ------------------ C-ya Joe - Owner/Editor www.ProCooling.com Where the Completely Addicted Come to Cool Off Somebody set up us the bomb.

01-04-2001, 10:33 PM	#11
mfpmax Cooling Savant Join Date: Oct 2000 Location: Rockledge,FL,US Posts: 731	You can proably get low voltage TECs cheap from some surplus site. ------------------ Watercooled K6-2 450 at 600

01-05-2001, 12:19 AM	#12
Austin Cooling Neophyte Join Date: Nov 2000 Location: tulsa, ok Posts: 16	I tried 2 hard drives on a 300 watt AT power supply. The 122 Watt pelt does not get enough juice to perform better than without the pelt. Take a look at this power supply: http://www.mpja.com/product.asp?product=12611+PS

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