Re: Please help

ganesh.khamait@gmail.com napisał(a):

> Sorry i didnt knew thats this group is for polish speking PC users
> only. Anyways.
> Yes all the ram modules are registered ECC. Total i have got 6 Dram
> stick . i even tried using 8 dram stick i.e 1gb x 8 but gives me the
> same error. three short beeps.
> but if i continue to use 4g( 1gb x4) the system works fine. I just
> wanted to know whether such combination is supported or not . I have in
> all 21 server with the same configuration. Each one has 4 gb installed
> in the same ratio as i described earlier. For one of the companies
> project i need more than 4 GB of ram. I have tried this doing on
> atleast 7 other servers but none of them seems to be working. Also what
> are the possible combination of ram that can be used to achieve my
> target ?
> Thanks for the quick reply :)

ASR#1: It should work. :>

>From the guide:

The IntelÂŽ Server Board SE7520BD2-DDR2 has eight DIMM slots, or four
DIMM banks. Both DIMMs in a bank should be identical (same manufacturer,
CAS latency, number of rows, columns and devices, timing parameters
etc.). Although DIMMs within each bank must be identical, the BIOS
supports various DIMM sizes and configurations allowing the banks of
memory to be different. Memory sizing and configuration is guaranteed
only for qualified DIMMs approved by Intel.

The minimum allowed memory is 256 MB, using a single 256 MB DIMM in DIMM
slot 1B. The system operates in single channel when only a single DIMM
is installed. The maximum allowed usable memory is 16 GB of DDR2-400,
using 2 GB DIMMs. DIMMs must meet the following requirements:
􀂃 Use only 240-pin, DDR2-400 ECC, registered DIMM modules
􀂃 Have a DIMM organization x72 ECC
􀂃 Support the following sizes: 256 MB, 512 MB, 1 GB, 2 GB
􀂃 A minimum of one 256MB DIMM is required in DIMM socket 1B. This uses
single-channel interleave.
However, for dual-channel interleave, providing optimum performance, a
minimum of two DIMMs should be installed in DIMM sockets 1A and 1B.
Except for the option of installing a single DIMM in socket 1B, DIMMs
must be installed in pairs and populated as follows:
DIMM 1A and DIMM 1B: Populate these two sockets together first
DIMM 2A and DIMM 2B: Populate these sockets in addition to DIMM 1A and
DIMM 2A if four DIMMs are to be used.
DIMM 3A and DIMM 3B: Populate these sockets after DIMM 1A, DIMM 1B, DIMM
2A, and DIMM 2B have been populated.
DIMM 4A and DIMM 4B: Populate these sockets after DIMM 1A, DIMM 1B, DIMM
2A, DIMM 2B, DIMM 3A, and DIMM 3B have been populated.

So according to this, taken from Intel's website, try if a 6 X 1 GB
config works first (pair of identical sticks per bank), an if it does,
check the power supply - you could also try updating the boards bios
(wild guess).

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