Gigabyte GA-K8VM800M recap worked but now dead?

[socketa]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

looks like i'm dreaming to think that this can be done with a heatgun, as it makes sense that heat needs to be applied from the top side, not the back side.

[diif]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

I'm sure there is a thread on here, where someone replaced a socket. IIRC they used their IR station to prevent the plastic melting and removed it in one piece.

[ben7]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

Up until now, was thinking about desoldering each of the contacts, removing them with micro tweezers, and then soldering in 'new' ones from another socket.
Would that be possible? Has it being done before?

Hm, you do realize, that sounds VERY tedious!

Anyway, how to go about completely replacing it with this replacement socket?
Break out the heat gun,
heat up the back of the board and check temperature with a thermocouple,
pull it off,
clean the area of all the old solder using soldering iron, flux and braid.
heat it back up again and then pop in the new one?

Sounds like a plan to me.
Just be aware that removing the whole socket at once might be difficult. Every pin would have to be loose (solder melted) in order to remove the socket ... and that thing has a lot of pins!
You might also be able to use a desoldering iron to desolder each pin. That way you have less of a chance of damaging the PCB by heating it up too much.

-Ben

[socketa]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

Have had the board sitting beside the desk for a while.
It's got about 7 damaged contacts, and i just got onto ebay and noticed that the socket is for sale, then checked back here, and saw the replies.
Thankyou

Turning the motherboard over, i see that the opposite side of the socket is soldered where the CPU contacts are, so this socket looks like a through-hole type, with legs.
Up until now, was thinking about desoldering each of the contacts, removing them with micro tweezers, and then soldering in 'new' ones from another socket.
Would that be possible? Has it being done before?

Anyway, how to go about completely replacing it with this replacement socket?
Break out the heat gun,
heat up the back of the board and check temperature with a thermocouple,
pull it off,
clean the area of all the old solder using soldering iron, flux and braid.
heat it back up again and then pop in the new one?

If the board has lead solder, wouldn't the replacement socket also be presoldered with similar solder?
Or, does all of the old solder have to be removed first?

[diif]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

Depending on what kit you have a new socket isn't much. http://www.aliexpress.com/item/Origi...854569169.html

[TechGeek]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

Do you still have the board?

[socketa]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

As previously stated, the original caps were HM, and that is what they were replaced with. I don't think the board would now need HZ.
And retried tried several RAM sticks (both of which were working fine on the board)
Anyway, after straightening up the socket contacts as best as i could, still get the same response.
So i now regard the boad as scrap
Next time i will start with checking that the board is working.
That appears to be the moral of this story.

Thanks for the interest.

[ReeceyBurger123]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

[QUOTE=Sparkey55;523692]Some of Gigabytes motherboards require much lower ESR values than HM series. Especially the VRM outputs. Also we do not know exactly what he replaced the original caps with. Real or fakes? Also some socket 754 boards a finicky about the DDR choices. A lot yet to be confirmed.[/QUOTE

[Sparkey55]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

Yep.

Am also suspicious that there was some damage present before i brought the board, because as soon as i saw it had bloated caps, i thought it was better not to turn it on with them in.
Then after replacing them, it didn't boot, took of the heatsink (with CPU attached) and stuck it back together with new paste, and it booted - which may have repositioned the CPU just enough to make a pin contact.

It is like playing Russian roulette. I need to know if a mobo works befor a recap. If it dies, oh well.

[socketa]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

Yep.

Am also suspicious that there was some damage present before i brought the board, because as soon as i saw it had bloated caps, i thought it was better not to turn it on with them in.
Then after replacing them, it didn't boot, took of the heatsink (with CPU attached) and stuck it back together with new paste, and it booted - which may have repositioned the CPU just enough to make a pin contact.

[Sparkey55]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

Well got the top off, and only broke the back clip
Prying it off in each of those slots with one side of tweezers and using a toothpick to hold open the gap while moving on to the next slot.

I think there is a reasonable chance that this is why the mobo is not happy

One of the cubicles near the front only has one contact and quite a few in the problem corner look reasonably disorganized.

Now how to fix it?

Is the lower right corner that is shown in the photo the corner that you said you had to push down for the cpu to seat all the way?

[socketa]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

Ok
Tidied them up with a pin and magnifying glass,
and they look a lot better now, except for about 4 that look like they only have one contact instead of two.
Will get a microscope later in the week for a closer inspection

[socketa]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

Well got the top off, and only broke the back clip
Prying it off in each of those slots with one side of tweezers and using a toothpick to hold open the gap while moving on to the next slot.

I think there is a reasonable chance that this is why the mobo is not happy

One of the cubicles near the front only has one contact and quite a few in the problem corner look reasonably disorganized.

Now how to fix it?

[socketa]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

I just practiced on an a dead socket A board

On both sides there was a gap between the board and the top sliding cover,
so used a screwdriver to pry it up, but it still cracked and i managed to snap off two tab hooks at the back of it.

Now that it's off i see that i should have used the slots on the top to lever the sides outwards and unhook them

Now on this 754 socket, i tried to lever the sides outwards with a small screwdriver in either of the 3 side slots, but it's not moving easily
looks like i might need to make a 3-prongged 'screwdriver' to lever off the side in one movement?

Anyone done this before?

.

[Sparkey55]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

Well that was easy, but didn't achieve much because i thought that there might be some fastners, under the black plastic pad, that i could remove to get the CPU socket off.

How to i remove the sliding socket to access the CPU pin contacts?

It should snap off if done carefully. Although we are now treading in uncharted waters. i have not done this type of disassembly before. Good luck and god speed.

[socketa]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

Well that was easy, but didn't achieve much, because i thought that there might be some fastners, under the black plastic pad, that could be removed to get the CPU socket off.

How to i remove the white sliding socket pin-guide to access the CPU pin contacts?

[Sparkey55]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

In the famous words of Elvis - thankyou very much
Might have to open an ebay account

Ok

Started with a pin that was too wide,
so narrowed it down with a ginder
After a few proddings thought a bit of stripped telephone house wire might be the right size, since the grinder didn't produde a uniform rezized pin
the phone wire worked well
Perhaps fishing line might be a better option

On some holes the grip was questionable, and on a few of others it would not go down without some force
So then i got the lamp and a magnifying glass and compared to the rest of the paired contacts in the socket holes while moving the lever. Quite a few look out of alignment, On one i can't see any metal although the wire doesn't want to go down that hole, and a couple of contacts were right next to each other, rather than the v-shape (i, may have caused that when i forced the socket in).
After seperating them with the pin, the CPU still doesn't want to fall in to the socket.

I can also recall that when i removed the original CPU, i saw a tiny piece of copper on the board near the CPU socket, but ignored it, especially since afther reinserting it, the compter booted OK.
But am now thinking that it might have being one side of one of the socket contacts

Looks like i'm going to have to remove the socket housing and straighten the contacts up, back to their v-shapes, and see what damage has being done.

There is a black plastic pad on the reverse side of the board held in with two white plastic fastners on either side

Here's thumbnails of both sides of the fastner - how do i remove that, and then remove the CPU socket cover?

It looks like on the top of the fastner is a round plastic stake pin that pulls up then use needle nose pliers to squeeze the bottom spreaded tabs together and that should let you pull the retainer off.

[socketa]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

In the famous words of Elvis - thankyou very much
Might have to open an ebay account

Ok

Started with a pin that was too wide,
so narrowed it down with a ginder
After a few proddings thought a bit of stripped telephone house wire might be the right size, since the grinder didn't produde a uniform rezized pin
the phone wire worked well
Perhaps fishing line might be a better option

On some holes the grip was questionable, and on a few of others it would not go down without some force
So then i got the lamp and a magnifying glass and compared to the rest of the paired contacts in the socket holes while moving the lever. Quite a few look out of alignment, On one i can't see any metal although the wire doesn't want to go down that hole, and a couple of contacts were right next to each other, rather than the v-shape (i, may have caused that when i forced the socket in).
After seperating them with the pin, the CPU still doesn't want to fall in to the socket.

I can also recall that when i removed the original CPU, i saw a tiny piece of copper on the board near the CPU socket, but ignored it, especially since afther reinserting it, the compter booted OK.
But am now thinking that it might have being one side of one of the socket contacts

Looks like i'm going to have to remove the socket housing and straighten the contacts up, back to their v-shapes, and see what damage has being done.

There is a black plastic pad on the reverse side of the board held in with two white plastic fastners on either side

Here's thumbnails of both sides of the fastner - how do i remove that, and then remove the CPU socket cover?

[Sparkey55]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

found this on eBay. Never used one myself so do not know if they work but cheap.
http://www.ebay.com/itm/Desktop-CPU-...#ht_2829wt_842

[selldoor]

Re: Gigabyte GA-K8VM800M recap worked but now dead?

Something else to try: Try inserting a metal pin into the cpu socket pin holes in the corner that gives resistance. Open socket latch, insert pin into hole, close latch, then pull slightly on pin to check for tightness. Do this one pin at a time. Be sure to use a pin the same diameter as the cpu pins.

That is a great tip - I love it Thanks