P55-UD6 socket burn

[LardArse]

Lotes.

I think this is far from over yet. Question is what is really causing this now.....1156 power design? Faulty cpus? or intels 1156 socket spec?

http://www.ocforums.com/showthread.p...63#post6295863

here is the initial autopsy of this board:















too inconclusive maybe, but other than the soot in the crack line depth , if the crack only developed due to heat than it should be at the higher end area where its thinner and closer to the cpu pad (where it should be hottest) and not at the fat end.

[STEvil]

the lower "fat" area would receive most of the stress as it flexes the most before the mounting is complete (the bowed area flexing will cause it more stress as well) and may also already be stressed from the stamping process (assuming thats what is used - stamp tons of pins from a sheet)

[chew*]

Are you saying that possibly pin fatigue or defective pins lardarse?

That in theory could definitely create resistance, resistance = heat causing domino effect.

Same thing as a bad connection.

[LardArse]

im saying even autopsy cant tell much , still all sorts of possible deductions it seems

[chew*]

im saying even autopsy cant tell much , still all sorts of possible deductions it seems

It's really odd that that board burnt in a diff location.

I wonder if it has the same pin designation.

Edit: looking closely at the pics now I notice the contact points are still shiny which denotes that the "resistance" or poor connection was not cpu side.

Any way you can remove the actual socket without disturbing to much?

[RNeon]

@raju

hi,

did you noticed the burning problem on a P55 Classified?

[Raja@ASUS]

@raju

hi,

did you noticed the burning problem on a P55 Classified?

No.

[LardArse]

heheh just met the LOTES FAE to discuss again, Raja I asked the cute Sales lady to speak to you on my msn but she's scared

[saaya]

Talk to Hicookie then, this is what we officially got at the Giga event as explenation for this... you don't have to believe me... there was a bad batch of sockets, which tended to deform slightly under heat/cold and massive Vcore use : this leading to bad contacts : even more heat generated. End result : finally socket burn... and damaged CPU's

the pins should never get hot to begin with... if they get hot then something is already wrong. i dont know sht about socket designs but the pins getting hot sounds more like the problem, not the plastic being too weak to hold the hot pins in place...

Doesn't that make sense?
Pins are attached to socket plastic; pins get hot and heat up plastic. Plastic can't hold heat and melts.

why do they get hot to begin with? unless the socket starts to melt at 50C i dont see how the plastic is the main problem...

interesting autopsy pics shamino, thx for sharing!
if the pins break or bend because they are too thin or stamped out of the metal sheet in a bad way, or soldered to the board in a bad way... that would explain everything... they bend or break and still make contact, but barely, which heats them up, plastic melts, which then causes a cascade effect of more pins bending or breaking...

[Raja@ASUS]

heheh just met the LOTES FAE to discuss again, Raja I asked the cute Sales lady to speak to you on my msn but she's scared

Lol, tell her I'll play nice..

[K404]

Bet thats what ya say to allllll the girls

[chew*]

or soldered to the board in a bad way... that would explain everything... they bend or break and still make contact, but barely, which heats them up, plastic melts, which then causes a cascade effect of more pins bending or breaking...

This is why I'm curious whats going on under the socket.

From what lardarse posted the concentration point seems to be further in the socket than at the tip where pins contact cpu.

This is really weird and has my curiosity peaked.

[HDCHOPPER]

I wonder if there is any correlation between using dielectric in socket and not using any at all ...

Or has there been any burn with dielectric in socket ?

[cowpuppy]

If it were the socket poorly conected I would think that at least one manufacturer could get it right as the boards are not made at the same place.

If no burns with dielectric grease have been found........possible reasoning could be that the dielectric grease is keeping the pins cool and helping dissipated the heat from the over heating pins. If the pins were even to start to glow red from to much draw it would weaken the pins and eventually result in failure.

[Dahaka]

This is the biggest WTF in along time for INTEL and he's partners.

So, if foxconn haven't responsability, who is it? Intel, manufacturer? user? all of them?.

i5, the worst upgrade EVER!. Sell it all and buy x58 and i7

[Nelly]

Just to add I'm in a similar situation, I'll explain.

I have installed 4GB of RAM (2x2GB) in slots A1 & B1 as per the manual, but the Bios & OS using Windows 7 64bit only sees "1.99 GB Usable."

The manual says I can only use either A1 OR B1 to boot, so I tried slot A1 on it’s own and the system boots showing 2GB of RAM in the Bios & Windows - Correct, so now if I use B1 on it’s own the system will not boot up with any 4 sticks of RAM I try using - I get AMI BIOS POST CODE: EA which isn't in the Manual to explain what’s wrong – the RAM works perfectly in another system by the way.

Now if I populate all 4 RAM DIMM slots 8GB of RAM (4 x2GB) I have 4GB out of 8GB show in Bios & Windows.

I then began to switch out RAM & found that if I put RAM in slots A1 & A2 - 4GB of RAM (2x2GB) I have 4GB of RAM show correctly, but using slots B1 & B2 fail to show any RAM, so it must be the two faulty DIMM slots out of a process of elimination.



I did some more investigating of this problem & it seems that the issue can arise to misaligned pins, bent pins, missing pins on the socket.

Upon close inspection of the socket this is what I found, all the other pins are totally fine nothing wrong.



I've stated this in my RMA which has been recieved back today to where I purchased, I will let you know the outcome but I'm not very confident.

I'm really really worried that a Novatech Tech/Engineer will just say "ahhh end-user damage, warranty not covered" because Scan & Ebuyer have done this with customers I have looked it up! OcUK have replaced. (omg amazed!!)

With the amount of exact same problems arising I think theirs more to it than it seems, I'll probally take further action if that is the outcome as I simply cannot afford to replace the motherboard.

[Erklat]

So,there is nothing that you,as an end-user,could do to avoid this from happening?
Over here there is definitely not a vast selection of motherboards to choose from,only Asus and GB.
All Asus boards use Foxconn's sockets,but I have heard that after this GB switched over to Lotes - how to
know whether socket is Lotes-made?
My first pick was P7P55D Pro,but then I heard they are all Foxconn.Then I decided to buy GB P55-UD6,it is overall better board
I suppose,some great OC with her I saw,and then I notice this thread and realize that all started with UD6

Is there any way to stay on the safe side?Clamp the socket and then carefully examine pads on CPU for pin-to-pad contact?
Does this problem occur only in extreme conditions (ln2,phase) or normal day to day usage,too?

[Koen]

This is the biggest WTF in along time for INTEL and he's partners.

So, if foxconn haven't responsability, who is it? Intel, manufacturer? user? all of them?.

i5, the worst upgrade EVER!. Sell it all and buy x58 and i7

Yep, AMD really missed an opportunity there :/ It has been more than a year since Intel released I7 and AMD still has nothing to show in this class. Now, if you're not sure if faulty (?) P55 is a good choice, what else do you have? More expensive X58 So in both cases Intel and Foxconn get your money.

[Eldonko]

Im interested to know which manufacturers are doing RMAs for burned sockets and which are blaming everyone else.

[So_BAD]

So,there is nothing that you,as an end-user,could do to avoid this from happening?
Over here there is definitely not a vast selection of motherboards to choose from,only Asus and GB.
All Asus boards use Foxconn's sockets,but I have heard that after this GB switched over to Lotes - how to
know whether socket is Lotes-made?
My first pick was P7P55D Pro,but then I heard they are all Foxconn.Then I decided to buy GB P55-UD6,it is overall better board
I suppose,some great OC with her I saw,and then I notice this thread and realize that all started with UD6

Is there any way to stay on the safe side?Clamp the socket and then carefully examine pads on CPU for pin-to-pad contact?
Does this problem occur only in extreme conditions (ln2,phase) or normal day to day usage,too?

This issue, is inadmissible... I get some weeks ago a P7P55D Deluxe + i5 750 and, until the moment, my fear is too much, I couldn't mount it in my system...

Right now, I will put for sale in our local Ebay (www.mercadolivre.com.br). So, I reading about Rampage Gene II + i7 920...

Im interested to know which manufacturers are doing RMAs for burned sockets and which are blaming everyone else.

Me too...

[youngpro]

okay so i havnt read the whole thread so forgive me if i am double posting information, but here are two seemingly identical dfi p55 boards, one is an old revision, second is the new one


old revision


new revision


seems this is DFIs approach to this problem..

[Eldonko]

Yeah most manufacturers seem to be switching from foxconn socket on their newer boards. They should do a recall on it TBH, like car manufacturers do if there is a defective part.

[chew*]

Pro can you pull the covers so we can see the socket mold?

[Dahmer]

I'm here with a bit of a problem....in the process of trying to build a system for a friend that'll mainly be busy editing/encoding videos so should be rather high load on the cpu for long periods. Downside is I have to keep it as cheap as possible...so I can't really go higher than p55 & i5
I'm also limited a bit by the site I want to order from, they only have gigabyte P55A boards that (from what I read here) are foxconn free.

Basically my question is this :
Can I stick to a P55-UD3 (or another board in same pricerange) or should I really go for P55A-UD4 that costs about €50 more? (ps : she doesnt want me to overclock it either)

[groove]

Very interesting and disturbing info's here, especially bad for me because, roughly 3 weeks ago I put together a system for the Wife using this same motherboard.

System Config:
i5-750, Gigabyte P55-UD6(yes foxconn socket with smaller side-tabs on latch, box says rev.1), 2x4gb Corsair Dominator ddr3-1600, GTX 275, Prolimatech Meghalems rev.2 w/2 120mm fans, TX750w, Vertex 60gb, caviar black 1tb, HAF932.

She play's most of the "heavier" games, GTA4, Crysis, etc.
Some video encoding will be done on this system as well.

I need an educated guess/opinion please.
Do you think this setup is still going to be prone to socket burn running at bone-stock settings, but relatively high/max cpu loads?
I know this is probably a silly thing to consider after all that's been said already but, doesn't the heatsink/mount help apply positive pressure to the cpu and clamp?

Thanks guys.