Modular PCIe connector to PSU is a little loose

[adaseb]

I am talking about the blue end pictured below. If you wiggle it a little it moves, is there anyway to make the connection more solid to the PSU?

I noticed that one of the modular cables was at a slight angle and the cable was a little hotter than the other one.

[1714049483]

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[1714049483]

1714049483

[philipma1957]

I am talking about the blue end pictured below. If you wiggle it a little it moves, is there anyway to make the connection more solid to the PSU?

I noticed that one of the modular cables was at a slight angle and the cable was a little hotter than the other one.

Well a not code way that should work is get a thin copper wire strand  28 or awg maybe 30  awg  fold it into a u shape put it in the female sockets of the loose connection.


not code and could be done wrong causing a short.  but if done correctly it would be safe.

before you do it check all sockets for melting  check all rods for melting.

I will try to photo what I mean.

check for melting

 no melting in this psu




no melting in this cable


here is the hard part  copper wire  this one is 24awg and it is too fat but it was handy for demo



one wire in one socket  now the row of four are all the same  so do the row of four sockets


and the row of 3 are all the same do the row of 3 sockets

when you do this no loose wire from row of 3 can touch row of 4  or short
same as no wire from row of 4 can not touch row of 3.
this is why this fix is not code but it works if done correctly.

[Unacceptable]

So the wire strand acts as a shim between the plastic "housing" & the inner connector

[philipma1957]

So the wire strand acts as a shim between the plastic "housing" & the inner connector

no it is inside the  brass/copper socket so the socket  is a tighter fit   

it is not code and if done wrong can short.


    two rods in the same hole   1 is really thin but makes a tight fit for the normal rod.

there are other methods , but all of them are not that good.

  other then new virgin male and female parts that insure tight fit.

[adaseb]

Thanks for the suggestion however it looks like the female end can get destroyed if you put a small wire strand in there because it looks like a frigile piece of metal.

[adaseb]

I think the only solution here is maybe to stick some small pieces of paper on both ends to the blue connector doesn't sit at an angle.

[flameruk]

I am talking about the blue end pictured below. If you wiggle it a little it moves, is there anyway to make the connection more solid to the PSU?

I noticed that one of the modular cables was at a slight angle and the cable was a little hotter than the other one.

Gently and very gently bend the pins in the back of the PSU off centre by a very small amount.
Use a small jewellers screw driver.
Plug will then push in and make a better contact.

If you are feeling brave, use a molex extractor and drop the female terminal from the receptacle on the free lead.
Inspection under a magnifying glass will show the seam where the pins are folded.
A gentle squeeze with some plyers and some practice will close the terminal back up and improve the connection.

All crimps of this type wear over time. The industry could not have picked a worse type of power connector to use for mining machines.

When they come loose they get hot then burn out. They are changeable but I find it best to use a rework station on the of PCB end and use the hot air to replace the sockets in one go.

Good luck!

[philipma1957]

I am talking about the blue end pictured below. If you wiggle it a little it moves, is there anyway to make the connection more solid to the PSU?

I noticed that one of the modular cables was at a slight angle and the cable was a little hotter than the other one.

Gently and very gently bend the pins in the back of the PSU off centre by a very small amount.
Use a small jewellers screw driver.
Plug will then push in and make a better contact.

If you are feeling brave, use a molex extractor and drop the female terminal from the receptacle on the free lead.
Inspection under a magnifying glass will show the seam where the pins are folded.
A gentle squeeze with some plyers and some practice will close the terminal back up and improve the connection.

All crimps of this type wear over time. The industry could not have picked a worse type of power connector to use for mining machines.

When they come loose they get hot then burn out. They are changeable but I find it best to use a rework station on the of PCB end and use the hot air to replace the sockets in one go.

Good luck!

Replacement of them is best but many people do not have the gear.
Or like me some have older eyes that do not see close well.
He could buy a cable from the psu company. Some companies do sell replacement cables

[adaseb]

I am talking about the blue end pictured below. If you wiggle it a little it moves, is there anyway to make the connection more solid to the PSU?

I noticed that one of the modular cables was at a slight angle and the cable was a little hotter than the other one.

Gently and very gently bend the pins in the back of the PSU off centre by a very small amount.
Use a small jewellers screw driver.
Plug will then push in and make a better contact.

If you are feeling brave, use a molex extractor and drop the female terminal from the receptacle on the free lead.
Inspection under a magnifying glass will show the seam where the pins are folded.
A gentle squeeze with some plyers and some practice will close the terminal back up and improve the connection.

All crimps of this type wear over time. The industry could not have picked a worse type of power connector to use for mining machines.

When they come loose they get hot then burn out. They are changeable but I find it best to use a rework station on the of PCB end and use the hot air to replace the sockets in one go.

Good luck!

Replacement of them is best but many people do not have the gear.
Or like me some have older eyes that do not see close well.
He could buy a cable from the psu company. Some companies do sell replacement cables

I don't think its the cable because I tried different cables from different PSUs, it seems this issue is from the male end on the PSU.

[flameruk]

I am talking about the blue end pictured below. If you wiggle it a little it moves, is there anyway to make the connection more solid to the PSU?

I noticed that one of the modular cables was at a slight angle and the cable was a little hotter than the other one.

Gently and very gently bend the pins in the back of the PSU off centre by a very small amount.
Use a small jewellers screw driver.
Plug will then push in and make a better contact.

If you are feeling brave, use a molex extractor and drop the female terminal from the receptacle on the free lead.
Inspection under a magnifying glass will show the seam where the pins are folded.
A gentle squeeze with some plyers and some practice will close the terminal back up and improve the connection.

All crimps of this type wear over time. The industry could not have picked a worse type of power connector to use for mining machines.

When they come loose they get hot then burn out. They are changeable but I find it best to use a rework station on the of PCB end and use the hot air to replace the sockets in one go.

Good luck!

Replacement of them is best but many people do not have the gear.
Or like me some have older eyes that do not see close well.
He could buy a cable from the psu company. Some companies do sell replacement cables

I don't think its the cable because I tried different cables from different PSUs, it seems this issue is from the male end on the PSU.

Then gently bend the pin in the PSU socket half a mm.
It will have an instant effect.
My SP20's had the same problem and this cured them all.

[cloudnthings]

If you're feeling adventurous, you can replace the connectors.

http://nz.element14.com/webapp/wcs/stores/servlet/Search?pageSize=25&st=172063&catalogId=15001&categoryId=800000002505&langId=64&storeId=10189

Overkill?

[adaseb]

I am talking about the blue end pictured below. If you wiggle it a little it moves, is there anyway to make the connection more solid to the PSU?

I noticed that one of the modular cables was at a slight angle and the cable was a little hotter than the other one.

Gently and very gently bend the pins in the back of the PSU off centre by a very small amount.
Use a small jewellers screw driver.
Plug will then push in and make a better contact.

If you are feeling brave, use a molex extractor and drop the female terminal from the receptacle on the free lead.
Inspection under a magnifying glass will show the seam where the pins are folded.
A gentle squeeze with some plyers and some practice will close the terminal back up and improve the connection.

All crimps of this type wear over time. The industry could not have picked a worse type of power connector to use for mining machines.

When they come loose they get hot then burn out. They are changeable but I find it best to use a rework station on the of PCB end and use the hot air to replace the sockets in one go.

Good luck!

Replacement of them is best but many people do not have the gear.
Or like me some have older eyes that do not see close well.
He could buy a cable from the psu company. Some companies do sell replacement cables

I don't think its the cable because I tried different cables from different PSUs, it seems this issue is from the male end on the PSU.

Then gently bend the pin in the PSU socket half a mm.
It will have an instant effect.
My SP20's had the same problem and this cured them all.

Bend it which way? Opposite the way its leaning ?

[philipma1957]

I am talking about the blue end pictured below. If you wiggle it a little it moves, is there anyway to make the connection more solid to the PSU?

I noticed that one of the modular cables was at a slight angle and the cable was a little hotter than the other one.

Gently and very gently bend the pins in the back of the PSU off centre by a very small amount.
Use a small jewellers screw driver.
Plug will then push in and make a better contact.

If you are feeling brave, use a molex extractor and drop the female terminal from the receptacle on the free lead.
Inspection under a magnifying glass will show the seam where the pins are folded.
A gentle squeeze with some plyers and some practice will close the terminal back up and improve the connection.

All crimps of this type wear over time. The industry could not have picked a worse type of power connector to use for mining machines.

When they come loose they get hot then burn out. They are changeable but I find it best to use a rework station on the of PCB end and use the hot air to replace the sockets in one go.

Good luck!

Replacement of them is best but many people do not have the gear.
Or like me some have older eyes that do not see close well.
He could buy a cable from the psu company. Some companies do sell replacement cables

I don't think its the cable because I tried different cables from different PSUs, it seems this issue is from the male end on the PSU.

Then gently bend the pin in the PSU socket half a mm.
It will have an instant effect.
My SP20's had the same problem and this cured them all.

Bend it which way? Opposite the way its leaning ?

yes but depending on how the pin got off set  you could snap the pin


no melting in this psu

see all my pins are lined up  are yours all lined up?

is the one set of pins in the psu all just off by a little compared to the other sets of pins?

or is just one or two pins off on the one psu socket?

[adaseb]

To the naked eye, it looks perfectly straight.