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Old Nov 29, 2011, 06:34 AM
Joe from New England
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United States, MA, Beverly
Joined Apr 2011
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I tried that.

Quote:
Originally Posted by Sandro's View Post
Hey pete236,

try pins A and B to ground combo as shown in the pic.

It seems to be a very common one for dell.

Also, use around a 500Ω resistor from each pin to ground to be safe.

Steve,

I tried that and it ran for a bit then would not restart. I'm going to check the internal fuse(s).

There is a dell 730 power supply out there with a different pin settings, so I'm sure I'm missing something, but thanks for the suggestion.

Oh, BTW, what do the resistor do?

Joe
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Old Nov 29, 2011, 08:36 AM
Steven
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United States, CT, East Hartford
Joined May 2010
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The resistors were used just in case we were trying to use the wrong pins to start the power supply.

How long did the supply run for?
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Old Nov 30, 2011, 07:46 AM
Joe from New England
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United States, MA, Beverly
Joined Apr 2011
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Run time

Quote:
Originally Posted by xandrios View Post
The resistors were used just in case we were trying to use the wrong pins to start the power supply.

How long did the supply run for?
Just long enough to get excited about it, maybe 3 minutes or so.

Long enough to get the multi-meter leads on it along with a 12 volt prop spinner to see how it would react with a load.

BTW, nice steady 12 volts.

The surprising thing is it stopped with no load! It stopped about a minute after my load test.

I checked all the connections (good) but, no restarting?

I haven't check the fuses yet. I'll probably do that later today.
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Old Nov 30, 2011, 08:50 AM
Steven
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United States, CT, East Hartford
Joined May 2010
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Those must have been the correct pins needed to start the PS.
Any other combination wouldn't start it.

Did you try directly connecting A1 and B6 to ground?
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Old Dec 01, 2011, 07:12 AM
Joe from New England
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United States, MA, Beverly
Joined Apr 2011
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Later

Quote:
Originally Posted by xandrios View Post
Those must have been the correct pins needed to start the PS.
Any other combination wouldn't start it.

Did you try directly connecting A1 and B6 to ground?
I had a root canal yesterday.

I'll poke around with the PS over the weekend and update this thread later.
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Old Dec 01, 2011, 08:26 AM
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Joined Jan 2009
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Hi I just wantd to post and say a big thank you to Xandrios for the IBM xseries 366 server power supply advice it worked great.
Thanks
Trev
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Old Dec 01, 2011, 03:00 PM
Steven
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United States, CT, East Hartford
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Thanks...
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Old Dec 01, 2011, 04:05 PM
Ennnnncommmming!!!!!
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Bellevue, WA
Joined Sep 2008
920 Posts
Xandios/jj604/anyone,

How loud are the fans in the Poweredge 6800?

As you might have seen from my recent posts I finished up a DL580 Proliant server PS. I love the power supply and its ability to run all eight of my lipo chargers simultaneously, but it does sound like a 747 taking off.

If the Poweredge was much quieter, i might be interested in making a Poweredge my house charger and the Proliant my field charger.

Thanks!
Andy
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Old Dec 01, 2011, 04:39 PM
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Quote:
Originally Posted by Cougar Zeke View Post
Xandios/jj604/anyone,

How loud are the fans in the Poweredge 6800?

As you might have seen from my recent posts I finished up a DL580 Proliant server PS. I love the power supply and its ability to run all eight of my lipo chargers simultaneously, but it does sound like a 747 taking off.

If the Poweredge was much quieter, i might be interested in making a Poweredge my house charger and the Proliant my field charger.

Thanks!
Andy
It should be a simple matter to substitute quieter fans-you don't need nearly so much CFM for simple charging.
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Old Dec 01, 2011, 08:48 PM
ancora imparo
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Melbourne, Australia
Joined Jul 2005
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You shouldn't need to substitute fans. Xandrios is the Poweredge expert, not me, but he has posted details on how to slow several Poweredge 68000's around about here. There are several different model 6800 supplies.

http://www.rcgroups.com/forums/showp...&postcount=610

Quote:
Originally Posted by Cougar Zeke View Post
Xandios/jj604/anyone,

How loud are the fans in the Poweredge 6800?

As you might have seen from my recent posts I finished up a DL580 Proliant server PS. I love the power supply and its ability to run all eight of my lipo chargers simultaneously, but it does sound like a 747 taking off.

If the Poweredge was much quieter, i might be interested in making a Poweredge my house charger and the Proliant my field charger.

Thanks!
Andy
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Old Dec 02, 2011, 09:37 AM
Steven
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United States, CT, East Hartford
Joined May 2010
504 Posts
Hey Cougar Zeke,

the PE 6800 PSU would make a great home charger.

It's a big PS at around 3 times the volume of the DL580 that you have.

Dimensions are 15" x 3.5" x 7.5".

It has a ton of room inside to install banana jacks, binding posts and Amperage meter.

It comes in two variants. The JD200 and the KD175.

I've been able to increase the Over Voltage Protection (OVP) to above 15v on both

models.

And also have been able to slow the fans down to almost being off on both models.

The KD175 will do 140A at 15v(2100W) while pulling 2400w(20A) from a 120v outlet with mod.

The JD200 will do 130A at 15v(1950W) while pulling 2200w(18.3A) from a 120v outlet with mod.

Thats around an efficiency of 87.5% at full power for both. Both are powerhouses!!

The KD175 is the easier to modify of the two because the JD200 incorporates newer technology.

It's just harder to solder inside the JD200 because of the extensive use of surface mount

components.

This post will give you the low down. Post 548 in this thread.

http://www.rcgroups.com/forums/showp...&postcount=548
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Old Dec 02, 2011, 11:04 AM
Ennnnncommmming!!!!!
Cougar Zeke's Avatar
Bellevue, WA
Joined Sep 2008
920 Posts
Big thanks Xandrios, jj and ReddiK!!!!

I'm on the hunt for one on fleabay right now. I'll fill you guys in as to my progress!

Cheers!
Andy
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Old Dec 04, 2011, 06:57 PM
Registered User
Brazil, São Paulo, Campinas
Joined Apr 2010
62 Posts
Parallel power supply

Hi guys..
I've been reading all this thread for some days.. learned a lot of info!!!

But I've a silly question.. Is it possible to wire two 12V server power supply to sum their current??

I'm planning to get 2x 12V 47A PS from feathermercant to build a 12V 80A PS. Will it work??

Thanks.

Alex.
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Old Dec 04, 2011, 08:19 PM
RC Helicopter Pilot
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United States, CA, Westminster
Joined Mar 2010
1,696 Posts
Quote:
Originally Posted by SkyRaptor View Post
Is it possible to wire two 12V server power supply to sum their current??

I'm planning to get 2x 12V 47A PS from feathermercant to build a 12V 80A PS. Will it work??

Thanks.

Alex.
It would work but why?
Wire is parallel to double the current, series to double the volts.

ALL high output chargers require 24V to get max output from.

What are you going to do with 80A of 12V?
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Old Dec 04, 2011, 11:01 PM
Use the 4S Luke
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USA, TX, Euless
Joined Aug 2003
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I think he's building a setup for his club.
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