HP9000 K260 memory configuration

[Koen Verboven]

Hello,

i'm planning a memory upgrade of a K260. Can anyone confirm that this is the correct configuration with the available memory:

Total Phys Configured
Board Size (MB) Total (MB)
------------ ---------- ----------
EXT0 0a/0b 512 512
EXT0 1a/1b 512 512
EXT0 2a/2b 512 512
EXT0 3a/3b 512 512
EXT0 4a/4b 256 256
EXT0 5a/5b 256 256
EXT0 6a/6b 512 512
EXT0 7a/7b 256 256
---------- ----------
System Total: 3328 3328

And just for curiosity: what do you think about the current configuration :

Total Phys Configured
Board Size (MB) Total (MB)
------------ ---------- ----------
EXT0 0a/0b 256 256
EXT0 1a/1b 256 256
EXT0 2a/2b 256 256
EXT0 3a/3b 256 256
EXT0 4a/4b 256 256
EXT0 5a/5b 256 256
EXT0 6a/6b 512 512
EXT0 7a/7b 512 512
---------- ----------
System Total: 2560 2560

Thanks !

Koen.

[Stefan Stechemesser]

Koen,

the first configuration is a good one. Memory configuration rules say (a module= 2 Simms):

Module Installation is a 6-step process
1. Remove any currently installed memory modules.
2. Combine the removed and new memory modules and organize them into four groups:
??? 512MB modules
??? 256MB modules
??? 128MB modules and 64MB modules (combined in the same group)
??? 32MB modules
3. Divide each group into pairs of modules (4 SIMMs) and single modules (2 SIMMs), if any.
4. Identify each slot by its slot number and letter (0a, 0b, 1a, 1b, and so on) on the extender.
5. Install any pairs of modules as follows:
A. Install from largest to smallest memory size.
B. Install from lowest numbered to highest number slots.
6. When all pairs of modules have been installed, install any remaining old or new modules:
A. Install from largest to smallest memory size.
B. Install from lowest numbered available slots to highest number slots.

Please note that you must not mix simms of different sizes in one module.
The 2nd configuration does not follow 5A.

However, both configurations will work, but performance is not optimal for the 2nd config.

Best regards

Stefan

[Jesse Dougherty]

Hi Koen, you can up-grade the memory in the K460 to 4GB by using 8 x A3737A HP 512MB memory kits. The A3737A HP kits sell for about $500.00 each in the used market and the third party one usually sell for about $350.00 each.

Hope this helped
Jesse Dougherty

[Eugeny Brychkov]

Koen,
in addition to Stefan's: this complex procedure is needed to allow system to interleave SIMMs in the best way. If you'll not follow described procedure, system will work, but on boot it will be telling 'memory configuration is not optimal'
Eugeny

[Charlie_17]

According to the rules Stefan supplied, the first configuration is not coptimal either as far as I see: we have 512MB DIMMS in 6a/b while 4a/b and 5a/b have 256MB DIMMS.

According to rule 5A the DIMMs from 6a/b should be exchanged with the ones in 4a/b.

Or did is misunderstand something?