[SOLVED] New RAM on NAS made the NAS unable to boot

[System32x2]

I have a NAS with a ASUS Z10PA-U8 board and a Intel Xeon i5-2660 v4 and it was using a 16gb ECC DDR4 RAM, all of this was booting fine with no problems, it was bought from ebay. I recently bought a new RAM stick a 64gb DDR4 ECC 2666MHZ on ebay and tried removing the old one and replacing with the new one on DIMM_A1.

b7 Error "Memory Init"

I thought okay let's get back to the old RAM and see what's going on.

b7 Again

Reset the bios, same thing, I saw 2 people on the web having the same problem but with a catch their system booted with one stick, mine doesn't and I have no idea what's going on.

 

https://www.manualslib.com/manual/961421/Asus-Z10pa-U8-10g-2s.html [Manual] Please trow any sugestion, at this point I don't know what to do.....

[strange13930]

5 minutes ago, System32x2 said:

I have a NAS with a ASUS Z10PA-U8 board and a Intel Xeon i5-2660 v4 and it was using a 16gb ECC DDR4 RAM, all of this was booting fine with no problems, it was bought from ebay. I recently bought a new RAM stick a 64gb DDR4 ECC 2666MHZ on ebay and tried removing the old one and replacing with the new one on DIMM_A1.

b7 Error "Memory Init"

I thought okay let's get back to the old RAM and see what's going on.

b7 Again

Reset the bios, same thing, I saw 2 people on the web having the same problem but with a catch their system booted with one stick, mine doesn't and I have no idea what's going on.

 

https://www.manualslib.com/manual/961421/Asus-Z10pa-U8-10g-2s.html [Manual] Please trow any sugestion, at this point I don't know what to do.....

Where the ram stick pushed in till they clicked? It will take some force.

[System32x2]

Yes the RAM could not go forward at all and it clicked

[System32x2]

Extra info: For some reason if both RAM modules are in DIMM_A1 and DIMM_C1 as the Manual says, the error code is b0, which is the same as if no RAM is connected.

[StDragon]

If the MB booted with the previous DIMM, and now it won't (even after clearing CMOS), seems that you've got a problem with the DIMM socket.

It's one thing for a new DIMM to have issues, but the fact you can't get the old one to work as it was before is telling of a physical connectivity issue.

[System32x2]

What could I do then?

 

[System32x2]

1 hour ago, StDragon said:

If the MB booted with the previous DIMM, and now it won't (even after clearing CMOS), seems that you've got a problem with the DIMM socket.

It's one thing for a new DIMM to have issues, but the fact you can't get the old one to work as it was before is telling of a physical connectivity issue.

Could I use Isopropal Alcool to try to clean the connectors or is that a bad idea?

 

[Guest]

1 hour ago, StDragon said:

seems that you've got a problem with the DIMM socket

Folks seem to think sockets (mechanical devices) have unlimited lifetimes.  That is, of course, naive.

 

What you don't realize is how FEW insertion cycles the sockets are designed to handle!  I've seen this figure as low as six (6!).  Here's the datasheet for some with a rating of "25" insertions.  Ask yourself how quickly you use those cycles.  Then, wonder how many were used prior to your receiving the unit!

[System32x2]

15 minutes ago, serverfarm said:

Folks seem to think sockets (mechanical devices) have unlimited lifetimes.  That is, of course, naive.

 

What you don't realize is how FEW insertion cycles the sockets are designed to handle!  I've seen this figure as low as six (6!).  Here's the datasheet for some with a rating of "25" insertions.  Ask yourself how quickly you use those cycles.  Then, wonder how many were used prior to your receiving the unit!

By that logic it's dead.

[System32x2]

But even in other slots it give the same error.

[System32x2]

Only DIMM_A1 was ever used

[Guest]

1 hour ago, System32x2 said:

By that logic it's dead.

There's no guarantee that a socket WILL fail after the Nth insertion.  Rather, the socket's specification says "you will get AT LEAST N insertions".  If you watch to see how folks so nonchalantly swap memory in and out, youve got to wonder just how many insertions have taken place.  And, how careful they were in performing those actions.

 

[StDragon]

Read page 62 of your MB manual. It supports "ASUS CrashFree BIOS 3". Updating the BIOS to the latest revision from a USB thumb drive might resurrect the MB.

[System32x2]

On 4/19/2025 at 10:17 PM, StDragon said:

Read page 62 of your MB manual. It supports "ASUS CrashFree BIOS 3". Updating the BIOS to the latest revision from a USB thumb drive might resurrect the MB.

SIR. THANK YOU