touched what table? LN2 to LHE isnt much of a difference and LN2 is fully capable of causing something to become brittle.
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touched what table? LN2 to LHE isnt much of a difference and LN2 is fully capable of causing something to become brittle.
Well around 3 months later I finally got my RMA sorted out, it was a total nightmare because the retailer as well as the supplier who sort out RMA for Biostar in the UK refused warranty, so I took legal advice from Trading Standards which is part of the UK goverment.
I spoke to Trading Standards/Consumer Direct as I read in the Sales Act that in the first 6 months of a purchase if the damage cannot be proven to be done by the end user then a warranty claim still exists.
Finally after stating this & quoting the Trading Standards Reference number to Novatech I got a call from them saying they would offer a refurbished Asus P7P55D worth £113, my original motherboard cost £138 so I refused this & asked if they would agree if I could purchase a brand new Gigabyte GA-P55A-UD4 for (£75ish) around 50% of its purchase value to which after another day they rang back & agreed.
I think part of the problem is the Foxconn retention bracket, the new P55A Gigabyte models all use the Lotus retention bracket - all in all this took over 3 months to sort out but now I'm happy.
All goes well I'll be installing my new motherboard at the weekend, definitly sticking with Gigabyte all the time now.
Also to note, I also spoke to Gigabyte & their Tech said if it was as issue with their motherboards they would issue an RMA anyway. - http://forum.giga-byte.co.uk/index.php/topic,917.0.html
The future is bright, its blue & white, its Gigabyte! :yepp: :up: :clap:
mine has foxconn socket EVGA P55 FTW. no problems here when it comes to burning. it does bork up the mem controller every now and again if I tighten my block down to hard. I cant seem to find anywhere how much pressure should be used on 1156 setups anywhere. i dont know if its just my board or what but I have to run my cpu block super loose or it only shows 2GB of ram.
Killing boards != socket burn. As far as I can see, many of the socket burned mainboards are still working.
Even with an extra -20 pins rofl! ...gat the Lotes one on FTW, well I'll see when Wprimin under SS though :/
does anybody know if there is any documentation on how much pressure the cpu's should have?? i know the venomous-x does up to 70lbs but if I tighten my cpu block tighter than about 20lbs it screws the memory controller and only shows 2gb of ram. im not exactly sure why but after I have to either re seat the cpu or loosen the block till its not even touching for it to show the whole 4gb of ram.
Its not the memory controller, its probably the motherboard warping.
POST, you mean. Letting something get beyond that with no heatsink is just asking for things to burn up.
Is the mobo out of the case ? check for warping, bend pins... you could have got unlucky with eVGA too... nothing to do with a particular brand...
Anyone get socket burn while using dielectric grease? Im thinking it could be condensation shorting the cpu and grease could stop it.
I prefer silicon paste ;)
I've tested two evga's p55 and they are by FAR the most sensible board with this issue.
I guess manufactures take 'warping' event as a real world factor and evga just didn't do the research as much as the others.
If you warp or tighten a p55 evga too much or too little be ready for hell (ram problems and errors, ff-d4 reboot loop, bsod's etc).
The problem there is when enough is not enough?! :shakes::up:
This is from Intel tech doc 322167 . Intel I7 800 and I5 700 Thermal/Mechanical Spec's .
As per the spec's the heatsink min presure is 0lbf min to 50lbf max :shocked:
It appears that the ILM does most of the socket loading . If the the heatsink manufacturers are making the heatsink spring load from 70lbf to 125lbf . Then in my opinion you would need to either mod the stock ILM plate to provide from 10lbf to 60lbf max . Or remove the load plate completely and mount the heatsink with a spring force of 80lbf to 185lbf . This would then make the static load of the ILM and heatsink match the total static load spec for the socket . :shrug:
Attachment 101826
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Someone should get a micrometer and a dead 1156 board and measure the deflection amount of the board with a few different sinks mounted... would be nice to have pressure statistics too but not sure how we could measure that..
Anyone noticed similar discoloration of LGA1366 CPU contact pads... just without any apparent socket damage? For any reason whatsoever? Also, any idea what sort of voltage/current/heat would be required to cause this discoloration of the contact pads?
I ask because I appear to have a board that turned nasty after one year of good hard use. At first I thought I cooked my 920 with my overclock and over a year of 24/7 Folding@home load... but then I saw what it did to my three week old Core i7 930 I replaced it with. With the 930 I was using 1.36vcore (by CPUZ), 1.60v RAM, and 1.225QPI/VTT @ 4Ghz under an Apogee GTZ.
The photos don't show it well, but the discoloration is more clearly apparent in natural light and can even be visibly seen in a few of the same pads in the 920. The 930 is on the right, which is astounding given I've used the 930 for less than 3 weeks... much of that time not even overclocked.
http://i111.photobucket.com/albums/n..._IMG_0647b.jpg http://i111.photobucket.com/albums/n..._IMG_0645b.jpg
Suffice to say the 920 is no longer stable at stock frequencies regardless of voltages, and the 930 is no longer stable at 3.5GHz+. The 920 seems to only respond to 1.42+ VTT, and worryingly the 930 seems to require unusually high VTT now as well just to run stable. The ASUS Rampage Extreme II is defaulting to 1.36v VTT just for stock operation.... when I first tested the 930 before installing it into the Gigabyte UD5, the Rampage defaulted to <1.20v VTT. Not happy at all just now...
What board was that on that the damage was caused to the 920 and 930 originally? Maybe its a board issue as the board should use the default VTT of the CPU and not pick something it wants to use itself..
well couple months going on strong. no burns nothing. but with the issues of this thread it still seems to me intel rushed this whole socket replacement thing. i fixed the issue of the memory probs and no posts. simply tightened the crap out of my HK 3.0 backplate that sraightened the board right up. no probs now. using foxconn socket. maybe its a luck thing and foxconn QC isnt that great. I mean its well known the job cuts and layoffs at foxconn, maybe QC got the worst i guess.
The Gigabyte EX58-UD5 in my sig caused the damage to both CPUs. It's the one at fault here... I am trying to determine how to proceed. I am certain it was the motherboard, I never once used voltages or temperatures that could cause such vivid discoloration. The Core i7 930 spent half of those 3 weeks at stock settings! CPU socket pins appear pristine, you would never know it kills CPUs.
The ASUS board does not have "NORMAL" or "STOCK" settings, if I select failsafe defaults it will feed 1.85V to my 1600MHz RAM, and 1.36v VTT to the damaged 930 with the CPU at stock settings. I have to manually set each voltage setting to a number... score one for the Gigabyte BIOS. Before the 930 was damaged, the ASUS board would auto to ~1.18v VTT as reported by its BIOS.
Honestly the discoloration worries me.. really the only thing that could cause it would be the traces in the cpu substrate packaging being too small causing excessive resistance, or the pins which touch the cpu pads having poor contact also causing resistance and either one of those could cause fires.
I see that mainly it's a problem of Asus and Gigabyte boards. I have MSI P55 GD65, I was using it on ln2 with i3 530, it's also my daily board. No issues at all. Even high voltages about 1,4v on air cooling doesn't make any problems. MB has Foxconn socket. I haven't seen in this thread any MSi board, which had burned socket. Maybe only few people use it, due to problems with voltage (above 1.7v vmod is necessary), so it can be a reason.
Anyway, my friend had burned socket in his Asus board, cpu was fried a bit too (i5 750). And he received new parts from RMA, although this combo has been still working. :)
Well, it isn't just cosmetic discoloration. The 920 is 100% unstable at stock settings, the 930 can't even overclock anymore. Before I put it in the Gigabyte UD5 I tested it on the ASUS Rampage.... it did 4Ghz easy using only a minor hike in CPU voltage. Ever since I put it in the UD5 and the discoloration appeared it no longer overclocks at all... vcore doesn't change a thing and only absurd levels of VTT stabilize it. The Ud5 has "killed" the 920 and crippled the 930...
Any thoughts on how to approach Gigabyte about this? The board is easy enough to RMA, but I've just lost $600 in CPUs and they should replace one of them. I highly doubt Intel would warranty it given the discoloration (and my heavy overclocking on the 920 for over a year anyway negates any warranty).
gigabyte will do the board but no way will they replace a cpu, they just wont.
there are a new foxconn clip?
i read this in a review of p55a ud7, new clip fix the old problem... is it real?
From what I'm reading, this seems to be a problem with both socket types 1156 and 1366. None of you are considering that Intel may be at fault here partly in the materials they're using on their processors. Pads being ripped off the chips is extremely disturbing considering that this has never happened to me even when I have ripped out inadvertently pinned chips while the socket was still locked (chip glued to heatsink with dried paste).
I used to be devoted to AMD, recently I've taken a keen interest in Intel's stuff because of lack of true SSE4 with AMD's stuff, but now I have to strongly consider getting an AMD platform for my new rig.
No one has reported any sort of problem like this with their pin schema.
In general I think Intel's idea of offloading the responsibility of damaged CPUs to the motherboard manufacturer by making the chips pinless was a low blow to the already struggling PC motherboard industry. Abit is already basically non-existent (Yes, I'm aware that they shot themselves in the foot with substandard capacitors) and now there is this debacle.
Well I haven't heard much lately concerning socket burn, maybe some things have been rectified. Also don't believe everything you read as some users try to cover up for their errors :p
Guys,
This problem persist... it's not was solved for the new rev. of motherboards/cpu socket?
Now, interested to buy a new Core i5 MoBo. But only if this issue was solved.
Thanks!
high vcore = 2v
@Hondacity
The vcore is not the problem. I've ran one setup under DICE with high vcore and vtt and everything went well. But what happened? I have ran it on air and I've got burned pins. Asking why? Answer is - cooler pressure and I guess that's the only reason for getting such a problems. When I OCed that setup without mounting kit everything was ok but after installing the mounting kit the problem has come.
Ouch, I should have read all this before buying my i5 setup.
Basically I decided to do more research after seeing my asus p7p55d-E has a foxconn socket and bracket (unlike what reviewers have said). Was trying to find out if foxconn have revised their socket so new foxconn is ok now or not, otherwise I think its very bad showing from the likes of asus and intel to continue to sell a problematic hardware platform. I compared my bracket to the pictures showed and it matches the bracket on the burned socket. This is on asus new 2nd gen p55 board.
However I take heart from the UK poster who pointed out that in the UK during the first 6 months the retailer has to prove end user fault to deny a waranty claim. So because of this will likely proceed with installing my i5. I plan to o/c but only on stock voltages. Also I did buy a 3rd party heatsick/fan but it seems now its reccomended to use the stock fan?
The revised Foxconn socket has been qualified by us, Intel and many others now. To date, there have not been any reported issues with this setup. Believe me, I tried for socket burn based on our original tests and the sockets held up fine. That said if you want to create a socket burn situation with any of the sockets, it is possible but then you are probably running stupid levels of VCore and VTT through the system for a one shot screenshot.
Foxconn says... blah blah
My P55A-UD7 sample disagrees though ( occured on air cooled [ Ultra-120 Extreme ] Core i3 540 @ 1.3V @ 4GHz running Vantage )...
http://i48.tinypic.com/2n4par.jpg
interestingly I found this.
http://www.intel.com/support/process.../CS-030850.htm
Seems this socket is very easy to damage such as dropping the cover in place instead of placing it carefully. I will inspect my socket as this intel guide says before I try to use it, and hopefully all my pins are fine before installation.
Is there a reason why pins are now in the socket instead of the processor? it seems the old system was much safer and robust to damage.
Can I ask how do I know if I have the revised socket? is it a certianty having brought a 2nd gen p55 board?
BenchZowner sh.t man, sorry!
I'll wait for SB:(
Well before I proceed I may post a pic.
the asus rep I see didnt post again. Some updates here.
1 - I checked the pins before installation all look correct.
2 - I checked again the bracket and socket to the pics posted here, and it matches the foxconn on the burnt socket (if its revised I dont see it).
3 - I have now installed the cpu and it looks unbalanced, the right bit on the bracket that sticks in has good contact with the cpu, but the left bit is barely covering the cpu which would indicate unbalanced cpu fitting in the socket, this is not something I can adjust as the bracket is lined up with the screw at the front inside the gap on the bracket. I have not installed a fan yet so I can I guess take the cpu out to check if all pads have contact but if its going to fail it will fail either way.
STEvil if its only for cost reasons then I think its clear intel have balls'ed up here, pins going into holes in a socket is a massive improvement over this.
are all reported burnouts on the left side of the socket? as to me the left side of the bracket looks to be a manufacturing process defect.
got my system posted outside of a case, seems I cant test all 4 ram slots without 4 sticks of ram tho, the ram failure light came on using 3rd and 4th slots but it seems when only 2 dimms by design only the first 2 slots will work.
cpu temp in bios seems high compared to my overclocked core2duo, 38C idle on a i5 750 using a arctic freezer 7 pro v2. we in summer but right now its 4am here.
I will leave it running for an hour or so and then this weekend prep my pc for the change as need to backup some files etc. ready for windows reinstall and mb swap.
one thing odd is when I turn it on, it comes on for 1 sec and then goes off again and then comes on again, is this normal for p55 boards? although since this thread is primarily for gigabyte ud6 and burning sockets I will post the question in a new thread if noone here knows. :)
also the pics of cpu in socket and bracket down are on my phone but until I find a usb cable or bluetooth dongle I cant get them on the pc, but will post asap so people can compare to gen1 socket pictures.
ok I attached a drawing now of what I mean.
color code is as follows.
Black area is bracket that covers socket.
Green area is motherboard circuitry around socket which is not covered, to me seemed unusual. On pics of lotes brackets that isnt exposed.
Blue is outer part of cpu
Yellow is raised inner part of cpu where thermal contact is made with heatsink.
The bit on the left where the black is further out is deliberate and is what my socket looked like with the bracket down, the left part of the bracket/clamp was barely on the cpu and my guess is as a result the left part of the cpu will have weaker contact.
On a video I watched below with a 1366 lotes socket the problem is not there and the bracket covers both sides of cpu evenly.
http://www.mindbites.com/lesson/7272...er-7-pro-rev-2
I repeat that I have a 2nd gen asus p7p55d-E not a first gen p55 board, the pictures I took I deliberatly show the board model printed on the board conveniantly just below the cpu socket so it will be proven, I will get them online asap but need to get a usb cable first to transfer the pics to my pc. Some may argue only the premium/pro boards should have proper sockets but I disagree, asrock is asus budget brand, not asus. The higher boards are for features not quality.
well it may be that this uneven bracket is not a problem, but it certianly doesnt look right when in place.
I have now found a pic of a p7p55d-e premium using foxconn, however the bracket appears more central and not showing circuity outside the socket when down, there is no cpu fitted tho so harder to compare but it doesnt look like its too far to the left like mine is.
I have my system running now and so far appears ok, no stress tests ran yet tho but windows was left running whilst I slept and was fine when I woke up. bingo13 if I scared you off sorry :)
I obviously had concerns over my socket with the uneven bracket but ultimately if its stable thats what counts.
well bad news guys its not stable for me and ram does pass memtest86. if I cant fix it via software changes I guess I will be having a look at the state of my socket and cpu.
This is worrisome. I have two motherboards, one Biostar TH55B HD and Gigabyte H55M-S2H, and the gigabyte has the foxconn socket. I have a i3-530 in the biostar motherboard and am planning to put in a i7-860 in the gigabyte. Both system will be pushed daily at 3.8-4.0 Ghz overclock, with short benching session at 4.8Ghz or beyond.
Do I have to worry about this issue, especially since I see some people in this thread have socket burns from a i3 and I am planning to put in a i7-860?
ok I now know I can send pics from my phone to email, so I am sending it now but its taking ages. isnt a 3g phone. I will edit it on to this post when its done.
my board seems stable now at least but I will still post the pic so others can see what I meant on the socket.
You can see pictures earlier in thread of socket clips with offset marks as well. Its poor design for sure.
If you connect your phone to your computer through USB it will be a lot faster and cheaper than emailing the pictures to yourself.
Is this still something to be concerned about? I ordered a P7P55D-E Pro because this review showed a Lotes socket onboard. Unfortunately, mine's a Foxconn. The scratch marks will be evident after latching down the lever, right? As long as they're all spotted, I'm ok? Thanks!
Wait, how did you get a Foxconn socket? From memory, they replaced all of them with LOTES.
Great...that inspires confidence. I'm guessing its an old board sittin on neweggs shelf? Or foxconn's revised their sockets. The CPU as from September 3rd tho. And its a pretty popular board.
Even the older (pre-USB 3.0 | SATA 6Gb/s) were replaced with LOTES. So I don't understand why Asus made anything now with Foxconn unless the issue was fixed. :shrug:
Well, it looks easy enough to check. Put CPU in socket, pull out and look for marks on pads.
check that the back of the board doesnt warp with the CPU installed, or the socket, or that the CPU retention tabs attached to the cam lock are evenly spaced on each side of the cpu so they dont create uneven pressure.
guys Asus are still using foxconn sockets on many of their boards, i have never melted / burnt a socket and ive given my cpu's 2v. There was a bad batch of sockets but there doesnt seem to be an issue anymore.
As I said before, high voltage isn't the factor why socket gets burned. It is all about cooler pressure. That can happen on X58 board too (the pins gets another color) so I'm telling you guys not to screw up your mounting kits too heavy. On X58 platform it usually effects the IMC pins. You "lose" one DIMM so your board detects only 2/4GB of memory. The solution is to clean the socket pins with the tooth brush. With P55 is a little bit heavier and once you've got burned socket you can nothing to do except praying because of warranty.
Think you got a point there Bullet92. W edid an OC demo with a UD3R. We wer elocked at 220Bclock, redid the CPU mount and got way higher... though after an hour ( with not exuberant voltages ) we got socket burn again... it's not all about the socket, but the way it all makes contact, usually the result of an inferior mounting...
Not good?
Youtube video
Picasa Gallery - 4 pics
who told you that?
Reviewers probably got sent lotes so people get misled. I have a p7p55d-e also and is foxconn. Whether or not I have an issue as a result I dont know, I had to increase voltage to MCH and reduce ram timing to 2T to make stable, I read 1T instability can be related to bad ram controller which of course is now on cpu.
like this socket?
http://www.xtremesystems.org/forums/...&postcount=549
Ohnoes, not again.
What volts used? And what's exact socket model and vendor affected?
Have no issues yet with M4E and UD7 (both foxconn skt), during 2 weeks of 5G+ usage with 1.45-1.6V range, with 50+ socket temps.