I acquired an Asus DSBF-DE dual Xeon Socket 771 mainboard recently. The board is "dead", doesn´t start as I was told. So why not give it a try?
First I removed the heatsinks to find the thermal compound was dry and shrunk under the northbridge heatsink while it had dropped down to the bottom under the southbridge´s heatsink. (This of course is not the reason for not starting up.)
I nevertheless cleaned everything and applied some fresh thermal grease.
Next I found a pin in one of the LGA sockets that had been bent over backwards, some more pins were out of position.
I adjusted everything as good as possible. Fortunately the bent pin did not break so far.
Right beside the first RAM-slot in the voltage regulator section there was a "TK" 820uF 6.3V that was bulged and had only a capacity of 9 nF left (see northbridge picture).
I replaced this one and most of the other 820uF TKs with Rubycon ZLH.
I looked up some Pictures of this board on the net and most of them have Panasonics whrere there are TKs on my board.
Next I have to dig ot some socket 771 xeons and some 667 MHz FB-DIMM in the basement to give it a try.
First I removed the heatsinks to find the thermal compound was dry and shrunk under the northbridge heatsink while it had dropped down to the bottom under the southbridge´s heatsink. (This of course is not the reason for not starting up.)
I nevertheless cleaned everything and applied some fresh thermal grease.
Next I found a pin in one of the LGA sockets that had been bent over backwards, some more pins were out of position.
I adjusted everything as good as possible. Fortunately the bent pin did not break so far.
Right beside the first RAM-slot in the voltage regulator section there was a "TK" 820uF 6.3V that was bulged and had only a capacity of 9 nF left (see northbridge picture).
I replaced this one and most of the other 820uF TKs with Rubycon ZLH.
I looked up some Pictures of this board on the net and most of them have Panasonics whrere there are TKs on my board.
Next I have to dig ot some socket 771 xeons and some 667 MHz FB-DIMM in the basement to give it a try.
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