Memory: Stick fully inserted even though no click? One slot affects another?

M

mm

Memory: Stick fully inserted even though no click?
One slot affects another?

I finally have this fixed, subject to my quesiton in my previous
thread, but at least 6 times I had installed RAM in the slots and it
didnt' regeister correctly.

Alone, each pair of sticks seem fine. When I put just the two 512 or
the two 1gigs in alone, and run the latest version Memtest86, two full
passes, I get no errors with either pair.

When I use all the slots, every slot feels fine except slot four.

A basic question related to that:
1) Is it normally possible for the levers at the ends of the ram slots
to come up and go into the notch at the end of each stick of RAM
without properly seating the RAM?

I figured -- but I'm not sure --that just because it goes in quietly,
and doesn't click, as long as it's in far enough to put the lever tabs
into the notches, it's in right.

I have one slot on a new-to-me mobo that doesn't make the "click" the
other slots make, but with effort, I can push the stick far enough in
that those levers come up and engage.

And indeed, that slot, slot 4, registers as having the full 512M in
it. But something has been causing the first slot to register 512
when it really holds 1G, and causing the *3rd* slot to be viewed as
empty, when it has 512M. (Maybe, a couple days ago the fourth slot
was listed as empty when it wasn't.)

2) Can a poorly inserted stick cause *other* slots to register
incorrectly? If so, is this rare?


The slots themselves couldn't be that bad, because now that I have put
the 512M in bank 0, and the 1 gigs in bank 1, all of them register
fully! I have 3gigs showing.

But when it was the other way around, it was:

Slot Installed Viewable
A0 1 gig 512M
B0 1 gig 1G
A1 512M empty
B1 512M 512M Total recognized 2 gig.

When only 3 sticks were installed, it was:

A0 1 gig 512M
B0 1 gig 1G
A1 512M empty Total recognized 1.5 gig
B1 empty empty
 
B

Ben Myers

Memory: Stick fully inserted even though no click?
One slot affects another?

I finally have this fixed, subject to my quesiton in my previous
thread, but at least 6 times I had installed RAM in the slots and it
didnt' regeister correctly.

Alone, each pair of sticks seem fine. When I put just the two 512 or
the two 1gigs in alone, and run the latest version Memtest86, two full
passes, I get no errors with either pair.

When I use all the slots, every slot feels fine except slot four.

A basic question related to that:
1) Is it normally possible for the levers at the ends of the ram slots
to come up and go into the notch at the end of each stick of RAM
without properly seating the RAM?

I figured -- but I'm not sure --that just because it goes in quietly,
and doesn't click, as long as it's in far enough to put the lever tabs
into the notches, it's in right.

I have one slot on a new-to-me mobo that doesn't make the "click" the
other slots make, but with effort, I can push the stick far enough in
that those levers come up and engage.

And indeed, that slot, slot 4, registers as having the full 512M in
it. But something has been causing the first slot to register 512
when it really holds 1G, and causing the *3rd* slot to be viewed as
empty, when it has 512M. (Maybe, a couple days ago the fourth slot
was listed as empty when it wasn't.)

2) Can a poorly inserted stick cause *other* slots to register
incorrectly? If so, is this rare?


The slots themselves couldn't be that bad, because now that I have put
the 512M in bank 0, and the 1 gigs in bank 1, all of them register
fully! I have 3gigs showing.

But when it was the other way around, it was:

Slot Installed Viewable
A0 1 gig 512M
B0 1 gig 1G
A1 512M empty
B1 512M 512M Total recognized 2 gig.

When only 3 sticks were installed, it was:

A0 1 gig 512M
B0 1 gig 1G
A1 512M empty Total recognized 1.5 gig
B1 empty empty

The short answer is: Yes, you can have a motherboard with a defective
DIMM slot. I have one here. It is missing one of the clips. But a
clip that is broken or working its way out from proper attachment can
cause a defective DIMM slot... Ben Myers
 
B

Ben Myers

Memory: Stick fully inserted even though no click?
One slot affects another?

I finally have this fixed, subject to my quesiton in my previous
thread, but at least 6 times I had installed RAM in the slots and it
didnt' regeister correctly.

Alone, each pair of sticks seem fine. When I put just the two 512 or
the two 1gigs in alone, and run the latest version Memtest86, two full
passes, I get no errors with either pair.

When I use all the slots, every slot feels fine except slot four.

A basic question related to that:
1) Is it normally possible for the levers at the ends of the ram slots
to come up and go into the notch at the end of each stick of RAM
without properly seating the RAM?

I figured -- but I'm not sure --that just because it goes in quietly,
and doesn't click, as long as it's in far enough to put the lever tabs
into the notches, it's in right.

I have one slot on a new-to-me mobo that doesn't make the "click" the
other slots make, but with effort, I can push the stick far enough in
that those levers come up and engage.

And indeed, that slot, slot 4, registers as having the full 512M in
it. But something has been causing the first slot to register 512
when it really holds 1G, and causing the *3rd* slot to be viewed as
empty, when it has 512M. (Maybe, a couple days ago the fourth slot
was listed as empty when it wasn't.)

2) Can a poorly inserted stick cause *other* slots to register
incorrectly? If so, is this rare?


The slots themselves couldn't be that bad, because now that I have put
the 512M in bank 0, and the 1 gigs in bank 1, all of them register
fully! I have 3gigs showing.

But when it was the other way around, it was:

Slot Installed Viewable
A0 1 gig 512M
B0 1 gig 1G
A1 512M empty
B1 512M 512M Total recognized 2 gig.

When only 3 sticks were installed, it was:

A0 1 gig 512M
B0 1 gig 1G
A1 512M empty Total recognized 1.5 gig
B1 empty empty

The short answer is: Yes, you can have a motherboard with a defective
DIMM slot. I have one here. It is missing one of the clips. But a
clip that is broken or working its way out from proper attachment can
cause a defective DIMM slot... Ben Myers
 

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