N-Class DIMM usable in L3000?

[Ralph Grothe]

Hello,

do you know if I can reuse RAM from an N-Class in an L3000 server?

Rgds

Ralph

[Mike Shilladay]

Hi Ralph,

I believe that they are. We have used N-Class memory in A500's and they have worked perfectly.

Mike.

[Ralph Grothe]

Hi Mike,

that sounds promising.

Although I assume that the N-class which I might have at my disposal for scrapping would be a better iron to totally replace the current L-class which needs to be upgraded RAM-wise,
I on the other hand fear that the porting of OS and app SW would be more involved than simply juggling with the DIMMs until a suitable combination is found.

[Steven E. Protter]

Shalom,

You may want to confirm this with Hardware support or http://partsurfer.hp.com

Not everything that works is necessarily good for the machine. You may have service contract issues. I doubt that any of this will be a problem.

SEP

[Pete Randall]

I just tried PartSurfer and was unable to come up with a conclusive answer. My assessment on this is that the L class and N class were pretty much identical, with the N simply having more slots available for expansion. I would think the memory would be compatible in either and I think, if you check the CPUs, you'll probably find they're the same, so you won't be losing any horsepower moving your apps to the L class.


Pete

[Pete Randall]

Sorry - I should have said "wouldn't lose any horsepower by leaving your apps on the L-class".

Both the L and the N came with either PA8500 or PA8600 chips rated at 360, 440 or 550 MHz. The difference being that the N could have up to 8 of them, while the L could only have 4.


Pete

[Ralph Grothe]

Hi SEP,

the provided URL for partserver is really useful.

I a locker in our data center I discovered several memory carriers of A3639 filled with 512MB DIMMs of A4923.

When I entered consecutively both prod Nos. into partserver's search form it unfortunately only came up with N-class as devices that used these parts.
So does this mean that I won't be able to use my stock memory carriers in an L3000?

If I ignored partsurfer's result however,
and installed such a carrier on the vacant 2nd slot anyway (provided the sockets matched),
would that cause damage or simply wouldn't work at worst?
I mean just in the vein of doing the dumb trial and error to see if it works.

[Pete Randall]

Ralph,

If the memory is incompatible, the machine simply won't boot. You'll get some kind of error code during the self-tests and it will stop there.


Pete

[Ralph Grothe]

Thank you Pete.
This was also my notion.

[Torsten.]

I'm not sure, but the memory carriers might be slightly different. You risk to damage pins and the system board this way when you try to install the carrier for the L-class into the N-class or vice versa. Caution!

For the DIMMs it is worth to try if they work, but I guess it will work.
Please consider always the situation supported/unsupported config vs. contracted systems.