Memory Query

medicnick83

medicnick83

Paramedic
Joined
Aug 23, 2006
Messages
21,158
Reaction score
565
Location
CBD, Cape Town
Hi all,

I have a question related to servers / memory for servers.

I got 4x 8GB chips today for 2x servers.

In each of these servers (currently) is only 4GB of memory.

When I put in the NEW memory, be it 1 chip or 2 (and remove the chip that was in) the servers (both) do not boot, they just beep alot.
I put in the old chip and all is fine.

The servers in question are:

A Dell PowerEdge T20 and a Lenovo ThinkServer TS140 and I did BIOS updates and tried again after.

I'm slightly confused as to why the new 8GB chips don't work.

Any advice?

More information;

The chip that does work has specs (on it) that read: 4GB 1Rx8 PC3L - 12800E - 11 - 13 -D1

The chip that doesn't work has specs (on it) that read: 8GB 2Rx4 PC3 - 12800R - 11 - 11 - E2 - D3

Thoughts?
 
medicnick83 said:
Hi all,

I have a question related to servers / memory for servers.

I got 4x 8GB chips today for 2x servers.

In each of these servers (currently) is only 4GB of memory.

When I put in the NEW memory, be it 1 chip or 2 (and remove the chip that was in) the servers (both) do not boot, they just beep alot.
I put in the old chip and all is fine.

The servers in question are:

A Dell PowerEdge T20 and a Lenovo ThinkServer TS140 and I did BIOS updates and tried again after.

I'm slightly confused as to why the new 8GB chips don't work.

Any advice?

More information;

The chip that does work has specs (on it) that read: 4GB 1Rx8 PC3L - 12800E - 11 - 13 -D1

The chip that doesn't work has specs (on it) that read: 8GB 2Rx4 PC3 - 12800R - 11 - 11 - E2 - D3

Thoughts?
Click to expand...

PC3L modules are low voltage - use 1.35V.

The ones you are trying to use are 1,5V so they probably are not getting sufficient voltage. Possibly you can adjust the voltage in the BIOS.

Additionally, the E stands for ECC. The R is Registered (Non-ECC). The server may require ECC RAM.
 
UrBaN963 said:
PC3L modules are low voltage - use 1.35V.

The ones you are trying to use are 1,5V so they probably are not getting sufficient voltage. Possibly you can adjust the voltage in the BIOS.
Click to expand...

I'm going to try check the BIOS settings tomorrow morning first thing and see if that resolves it.

I speak under correction here, but normal memory is (Non-ECC) memory isn't it? This is the memory any average Joe would get for their home computers?
 
medicnick83 said:
I'm going to try check the BIOS settings tomorrow morning first thing and see if that resolves it.

I speak under correction here, but normal memory is (Non-ECC) memory isn't it? This is the memory any average Joe would get for their home computers?
Click to expand...
Yes, normal memory is non ecc
 
medicnick83 said:
I'm going to try check the BIOS settings tomorrow morning first thing and see if that resolves it.

I speak under correction here, but normal memory is (Non-ECC) memory isn't it? This is the memory any average Joe would get for their home computers?
Click to expand...

No. Normal memory is unregistered (also called unbuffered). But R is Registered - has additional bits, a buffer between the DRAM and memory controller.
Registered (also called buffered) memory modules have a register between the DRAM modules and the system's memory controller. They place less electrical load on the memory controller and allow single systems to remain stable with more memory modules than they would have otherwise. When compared with registered memory, conventional memory is usually referred to as unbuffered memory or unregistered memory. When manufactured as a dual in-line memory module (DIMM), a registered memory module is called an RDIMM, while unregistered memory is called UDIMM.
Click to expand...
Registered memory can be ECC or non-ECC - you'd have to check that exact module's specs.
 
Can you give the exact part number of the R memory you have?
 
Per the server specs from the links you shared, they are both using non-registered ECC RAM. What you have is Registered ECC, so won't work.
 
Just return it if you can, otherwise sell it and buy the right thing?
 
Yea they won't - normal mobos don't support Registered memory, it's server specific.
 
You must log in or register to reply here.
Back
Top
Sign up to the MyBroadband newsletter
X