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Old Jan 21, 2012, 12:01 PM
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United Kingdom, City of Derby
Joined Jan 2012
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Hi All,
I'm new to this forum, I came across it when searching how to build/convert a 1000w pus, and this thread has been exactly what I've been looking for.

I have bought a DL580 1300W PSU (from ebay for 26!)
My intention is to remount it in an aluminium project box.

I have just powered it up using a servo conector across the three pins as detailed in jj604's original post.

I've taken a voltage reading from the output pins and it reads 12+ volts when it first starts up then after 10 seconds or so the fan speed reduces and the voltage reduces to 5v.

I've checked the connections on the servo lead but all seems fine, does anyone know what I might be doing wrong?

I've had a look through this thread but it is so long I may have missed something!

Any help would be appreciated!
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Old Jan 21, 2012, 01:37 PM
Steven
xandrios's Avatar
United States, CT, East Hartford
Joined May 2010
504 Posts
Hey seansparkle,

check to see if both fans are actually turning.
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Old Jan 21, 2012, 02:31 PM
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United Kingdom, City of Derby
Joined Jan 2012
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Hi Xandrios,

Just checked and both fans are turning, any ideas?

Also, when first turned on the main green led lights up (solid light not flashing), then when it slows down, the first led turnes off and the other one illuminates.

Sean
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Old Jan 21, 2012, 04:07 PM
Steven
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United States, CT, East Hartford
Joined May 2010
504 Posts
Hey seansparkle,

What your describing usually indicates some type of fan problem.

That could mean the fans aren't running fast enough.

Or it's possible you have a bad tach output from one of the fans.

Let's try a voltage bump to speed the fans up a little to see what happens.

Connect pin D1 to pin D3. This will kick up the output voltage of the power supply

and make the fans run slightly faster.

http://www.rcgroups.com/forums/showp...&postcount=495

If that doesn't work, then try connecting together the white tach wires from each fan.

Hope this gets it running..
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Old Jan 22, 2012, 12:16 AM
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Joined Apr 2011
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Quote:
Originally Posted by Xargon321 View Post
Try plugging the pins

. . . . . .
x . . . . .
. . . . . x
x . . . . .

and it should turn on i have a dell and that the ones i had to plug together to get to turn on and provide power
huh???? can you put that in layman terms? better yet, a picture or even a video on how to do this...... obviously i'm totally ignorant on the subject.
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Old Jan 22, 2012, 03:08 AM
Whoops was it always in 2 bits
bionicbone's Avatar
United Kingdom, England, Rotherham
Joined Oct 2008
1,364 Posts
Dell Poweredge 6850 1470 Watt Power Supply

I ordered one of these as an impluse decision (not like me at all LOL).
http://www.ebay.co.uk/itm/Dell-Power...d=308729298729

I cant see me using anything more than half of the output this should deliver, so I'm not too worried about the PS not having any fans (for the moment at least). Or at least thats what I'm picking up from here.

I'm trying to find out if this is the same as the more popular Poweredge 6800 of which there seems to be two models JD200 & KD175.

Is there anything I should know before I start this challenge?

PS. I am in the UK so the 220v thing is perfect for me. Thanks

Cheers
Kev
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Old Jan 22, 2012, 06:49 AM
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United Kingdom, City of Derby
Joined Jan 2012
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Quote:
Originally Posted by xandrios View Post
Hey seansparkle,

What your describing usually indicates some type of fan problem.

That could mean the fans aren't running fast enough.

Or it's possible you have a bad tach output from one of the fans.

Let's try a voltage bump to speed the fans up a little to see what happens.

Connect pin D1 to pin D3. This will kick up the output voltage of the power supply

and make the fans run slightly faster.

http://www.rcgroups.com/forums/showp...&postcount=495

If that doesn't work, then try connecting together the white tach wires from each fan.

Hope this gets it running..
Thanks so much for your help, the connection between D1 +D3 didn't make a difference, but connecting the white tach wires did the trick.

I'm thinking of sending it back though, as it was described as manufacturer refurbished and has a 90 day rtb warranty, what do you think is the fault, would it be a faulty fan?

Regards

Sean
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Old Jan 22, 2012, 08:16 AM
Steven
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United States, CT, East Hartford
Joined May 2010
504 Posts
Yeah. It would be a faulty tach output from one of the fans. Connecting the two white wires together allowed the tach output from the good fan to supplant the bad tach output of the other fan..
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Old Jan 22, 2012, 05:43 PM
Ennnnncommmming!!!!!
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Bellevue, WA
Joined Sep 2008
920 Posts
Hi guys! Well my Poweredge 6800 showed up yesterday,but instead of the KD175 I ordered, the one that showed up was the JD200.

So I pulled it apart and xandrios, you're right, the components in the JD200 are really small. I'm really not sure I could solder the small points onto the boards....

So in an effort to make some lemonade out of lemons, I used the settings xandrios has posted in this thread. I tapped A1 to B6 to ground and got it booted up. I tied C1 to C2 and got the fans to kick down significantly. And lastly I got a 560 ohm 1/2 watt resistor and tied D3 and D4 together and got the volts increased from 12.0 to 14.06.

So thanks Steven- much appreciated!

M question regards the fans and whether inserting the 39 ohm resistor will noticeably change the fan noise from where I have it now with C1 and C2 tied together.

Thanks!
Andy
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Old Jan 22, 2012, 06:05 PM
Steven
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United States, CT, East Hartford
Joined May 2010
504 Posts
Hey Cougar Zeke,

If you can live with the fan noise, I'd leave things as they are.

The 39k resistor mod will make a huge difference in fan speed if you are up to the task.

But it is easy to make a mistake with the surface mount components.

You could also try using a resistor in line with the fans if noise is a problem.

Or try running them in series.

No possibility of mistake there.

Just use your best judgement.
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Old Jan 23, 2012, 09:04 AM
Use the 4S Luke
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USA, TX, Euless
Joined Aug 2003
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I know you guys are all about the fan noise but remember what the fans are there for. Especially if you are taking these to the field, it may be hot in the summer and you run the risk of destroying your power supply.
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Old Jan 23, 2012, 11:02 AM
Registered User
United Kingdom, City of Derby
Joined Jan 2012
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DL580 PSU output pins

Hi All,

Another question about the HP DL580 PSU, I've read something in this thread but can't seem to find a definative answer, If I was to have just one output from the psu should I collect all the + and - outputs together (i.e 2+ from the left side and 2+ from the right etc) to allow the unit to spread the load evenly under high draw applications?

Does this make any difference or could I just have a set of outputs from either side?

I'm looking at using it for quite high loads (10S battery packs etc at high C charge rates)
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Old Jan 23, 2012, 11:18 AM
Steven
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United States, CT, East Hartford
Joined May 2010
504 Posts
Yup. We hear ya feathermerchant.
For field use it would be best to leave the fans alone.
These things can go through a beating out there.

Cougar Zeke is interested in making the JD200 his home charger and has a 1300w DL580 Proliant for the field.

The JD200 is about the size of an 18 pack of beer. It's huge.
After drinking all that beer to cool myself down, the JD200 could fit snugly inside the now empty beer case to help isolate it when running them in series.
I wouldn't want to take it out to the field.
Fortunately though, it also has alot of open space inside which allows
the fans to work very efficiently. It's very good for running quietly at home.

The KD175 is a close second when it comes to open internal space.

As a general rule of thumb, the higher the power density(Watts/cubic inch) a PS has, the more it will need to be fan cooled.
The lower the power density the less fan cooling.

Some high power density PSUs:

DL580 G3 1300w: Hyper black hole fans
IBM DPS-2000BB A 2000w: So small fans can't fit inside. Needs alot of cooling.
IBM xSeries x336 585w: Internal copper heat sinks need high CFM fan to get rid of the heat that the copper holds on to.

Some low power density PSUs:

Dell PE 6800 JD200 and KD175: can be modified safely because it's HUGE!!
Dell PE 6650: large and very quiet
Compaq HP ESP114 :medium to large and very quiet
Dell NPS-730AB :quiet

The fans on the very compact PSUs shouldn't be messed with to much.

As feathermerchant says,

"Especially if you are taking these to the field, it may be hot in the summer and you run the risk of destroying your power supply."
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Old Jan 23, 2012, 11:28 AM
Steven
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United States, CT, East Hartford
Joined May 2010
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Hey seansparkle,

jj604 suggests to connect them all together.
He has the most experience with the DL580 G3 1300w PSU.
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Old Jan 23, 2012, 01:31 PM
Whoops was it always in 2 bits
bionicbone's Avatar
United Kingdom, England, Rotherham
Joined Oct 2008
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Quote:
Originally Posted by feathermerchant View Post
I know you guys are all about the fan noise but remember what the fans are there for. Especially if you are taking these to the field, it may be hot in the summer and you run the risk of destroying your power supply.
I'm guessing your not from where I am
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