02-12-2014 02:01 AM
It's renew for This Topic
I have a similar problem.
We have 5 computers Compaq 500b.
In two of them, we install CPU INTEL Core 2 Quad Q9300 with 1333, and they worked fine.
Then we set memory CORSAIR DDR3-2x2Gb, 1333 and do not start with black screen and RAM Error beep code (1 short, 1 Long, 3 second pause).
CORSAIR CMV4GX3M2A1333C9 DDR3-2x 2GB, 1333, DIMM, Ret
2 × 2048 MB
9-9-9-24 / CL9
Memory spec by SPD from CPUZ is 9-9-9-24 on bus 666MHz
Intel Core 2 Quad work normally on Compaq 500b at 1333MHz Bus and old memory (HP Samsung) at 1066 (PC-8500)
Memory CORSAIR DDR3-2x2Gb tested on another computer, it work normally at 1333 (PC-10660).
Memory CORSAIR DDR3-2x2Gb work normally on Compaq 500b with the Intel Celeron E3200 at 800MHz Bus and memory at 800 PC-6400
Compaq 500b with Lastest Bios version.
Intel Celeron E3200 Wolfdale (2400MHz, LGA775, L2 1024Kb, 800MHz)
Intel Core 2 Quad Q9300 Yorkfield (2500MHz, LGA775, L2 6144Kb, 1333MHz)
HP Samsung DDR3 1 x 2GB, 1066, DIMM
HP Samsung DDR3 2 x 1GB, 1333, DIMM
CORSAIR DDR3 2 x 2GB, 1333, DIMM
Why this memory will not run at Compaq 500b with once or dual whith Intel Core 2 Quad?
02-19-2014 01:07 AM - edited 02-19-2014 01:13 AM
I happened to pick up memory.
This old 16chips Hunix and NPC.
Both DIMM memory marked as 10600 SPD 9-9-9-24 (on 1033) and only as 8500 (on 1066).
This clinical pattern is repeated on all computers Compaq 500B.
I think Mother Board foxconn 2a8ch not support real 1033mhz memory bus.
Can i use HP 500b bios on Compaq 500B?
(Lastest Bios for Compaq and For HP 500b:
HP Compaq Business Desktop ROMPaq Firmware (ROM Family CPT006) 5.13 Rev. A 16 Apr 2010
HP Compaq Business Desktop ROMPaq Firmware (ROM Family CPT006) 6.05 Rev. A 12 Jan 2011)
Can solve memory speed problem lastest Bios?
05-10-2014 02:08 PM
The 500B does not document its dependances on single and double sided memory. I have several 500B system and came to learn that those with E8600 CPUs would only accept 2 GB modules that are double sided (you'll see this referenced as 2Rx8 (double) vs 1Rx8). Then with other CPUs, it may accept single sided.