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Intel Advanced/ML (Marl) securing a bios IC socket after repair ideas?

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First post, by Paul_V

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Hi all.

Recently, I've been given a broken Intel Advanced/ML (Marl) motherboard.
The motherboard itself checks fine, but its has some damage where the BIOS chip should have been placed.
N28F001 is a nasty chip with protected area and I guess this damage was a result of an unsuccessful attempt to desolder it.

I can repair the traces with no big trouble, I even have some spare trace&pad kits to glue and fix (used in smartphone repairs).

What really bothers me is how to solder an IC socket in a way that it would not rip off any more traces when the chip is pulled off.
I would appreciate some ideas, if anyone have experience with it.

So far I considered these options:
1) Fix IC socket in place with a dot of epoxy (a bad solution it terms of future repairs, may also rip off\corrode a chunk of the pcb)
2) Solder the chip as-is (Good enough to repair, but I would like to tinker with MR-BIOS and be able to take the chip out in case something goes wrong)
3) Find and solder TSOP chip instead (but these are rare and have even more rare expensive socket)

Reply 2 of 5, by Roman555

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Paul_V wrote on 2022-12-16, 09:06:
Hi all. ... I can repair the traces with no big trouble, I even have some spare trace&pad kits to glue and fix (used in smartpho […]
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Hi all.
...
I can repair the traces with no big trouble, I even have some spare trace&pad kits to glue and fix (used in smartphone repairs).

What really bothers me is how to solder an IC socket in a way that it would not rip off any more traces when the chip is pulled off.
I would appreciate some ideas, if anyone have experience with it.

So far I considered these options:
1) Fix IC socket in place with a dot of epoxy (a bad solution it terms of future repairs, may also rip off\corrode a chunk of the pcb)
...

If it's not epoxy than it may be two side sticky tape. Wires also can be fixed with (green) mask

[ MS6168/PII-350/YMF754/98SE ]
[ 775i65G/E5500/9800Pro/Vortex2/ME ]

Reply 3 of 5, by Paul_V

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weedeewee wrote on 2022-12-16, 09:29:

Use a plcc-32 socket ?

That's the initial idea. But using it puts stress on the joints every time you insert or pull off the chip.
1/3 of the joints are already ripped off and condition of the others are unknown.
There's a risk of ripping all joints off one day without reinforcing the socket.

Roman555 wrote on 2022-12-16, 10:16:

If it's not epoxy than it may be two side sticky tape. Wires also can be fixed with (green) mask

Tapes tend to dry off with time and some adhesives even may cause corrosion.

Have anybody considered using hot glue on the plcc socket?
In theory it could be reheated later to let go of the socket

Reply 4 of 5, by Roman555

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Paul_V wrote on 2022-12-16, 10:48:

Tapes tend to dry off with time and some adhesives even may cause corrosion.

Have anybody considered using hot glue on the plcc socket?
In theory it could be reheated later to let go of the socket

Do you mean to apply hot glue around the plcc socket? IMO it's a good idea but maybe it's a little bit not so esthetic. Anyway I would try this way.

Also a plcc extractor is "must have" in this case

[ MS6168/PII-350/YMF754/98SE ]
[ 775i65G/E5500/9800Pro/Vortex2/ME ]

Reply 5 of 5, by weedeewee

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if you got enough room for it, you could go for a plc32 zif socket .

i do not think using hot glue would offer much structural support.

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