770 MEMORY SLOT ONE BAD

[Turbovend]

After extensive testing and gnashing of teeth, I've isolated the problem in my "new" 770: Memory slot one is bad. Not so bad that you can't post and get a successful memory test, but bad enough to cause constant freezes once warmed up.

This is compounded by the fact that slot 2 only recognises half of a 128mb stick of RAM. Max memory is 96mb.

I've tried cleaning with a tootbrush, etc. but no luck. The machine is VERY clean so it's a shame. All I can come up with is to change the mainboard, sell or use as is--it's just adequate.

Any other suggestions are highly welcomed.

[Laptop_wizard]

This may be a stupid question, but are you sure the Ram stick it's self is not bad?

[tfflivemb2]

What are the specs of the ram? If the second slot if only reading half, then you might be using the wrong speed ram.

If this is a vanilla 770, then you can use either EDO ram, or PC66....not sure about PC100.

[Turbovend]

To answer both questions:
I did start out with PC100 RAM, but when I ran into these problems, switched to PC66 RAM. I've tried 4 different sticks in slot one and the machine always freezes, but no problems when only slot 2 is used. The RAM works fine and is fully recognized in another machine, but that's a 770X, I don't have another plain 770 to test with.