Boo-Yah! 8GB (2x4GB) works in pro.

Greetings,

I just wanted to say that the pro (rndp6000) works w/4GB DIMMs.

Specifically, at least, these:
DDR2 8GB (2x4GB) PC6400 800MHz PATRIOT PSD28G800K

Frontview shows:
Firmware: RAIDiator 4.2.15
Memory: 8064 MB [6-6-6-18 DDR2]

I booted the thing just to see if it'd recognize any of it and grab some logs. Now it's running the memory test. I'll let that go overnight.

I was reticent to try it as no one else on here seemed to think it would work. I looked up the stats on the Q963 controller and ran a few information gathering tools like:

dmidecode
hwinfo
decode-dimms (After building and inserting the eeprom module)
lshw

And after seeing this:

Memory Controller Information
	Error Detecting Method: 64-bit ECC
	Error Correcting Capabilities:
		None
	Supported Interleave: One-way Interleave
	Current Interleave: One-way Interleave
	Maximum Memory Module Size: 4096 MB
	Maximum Total Memory Size: 16384 MB
	Supported Speeds:
		Other
	Supported Memory Types:
		DIMM
		SDRAM
	Memory Module Voltage: 3.3 V
	Associated Memory Slots: 4
		0x0009
		0x000A
		0x000B
		0x000C
	Enabled Error Correcting Capabilities:
		None

I figured since it claims to support 4GB modules it was worth a shot.

Here's the 'meat' from decode-dimms with the new memory installed.

Decoding EEPROM: /sys/bus/i2c/drivers/eeprom/0-0050
Guessing DIMM is in                             bank 1                          

---=== SPD EEPROM Information ===---
EEPROM Checksum of bytes 0-62                   OK (0x34)                       
# of bytes written to SDRAM EEPROM              128                             
Total number of bytes in EEPROM                 256                             
Fundamental Memory type                         DDR2 SDRAM                      
SPD Revision                                    1.2                             

---=== Memory Characteristics ===---
Maximum module speed                            1600MHz (PC12800)               
Size                                            4096 MB                         
tCL-tRCD-tRP-tRAS                               6-6-6-18                        
Supported CAS Latencies                         6, 5, 4                         
Minimum Cycle Time (CAS 6)                      2.5 ns                          
Maximum Access Time (CAS 6)                     0.4 ns                          
Minimum Cycle Time (CAS 5)                      3 ns                            
Maximum Access Time (CAS 5)                     0.45 ns                         
Minimum Cycle Time (CAS 4)                      3.75 ns                         
Maximum Access Time (CAS 4)                     0.5 ns                          

---=== Manufacturing Information ===---
Manufacturer                                    Patriot Memory                  
Manufacturing Location Code                     0x02                            
Part Number                                     PSD24G8002                      
Manufacturing Date                              2010-W38                        
Assembly Serial Number                          0xB2151B28                      


Decoding EEPROM: /sys/bus/i2c/drivers/eeprom/0-0052
Guessing DIMM is in                             bank 3                          

---=== SPD EEPROM Information ===---
EEPROM Checksum of bytes 0-62                   OK (0x34)                       
# of bytes written to SDRAM EEPROM              128                             
Total number of bytes in EEPROM                 256                             
Fundamental Memory type                         DDR2 SDRAM                      
SPD Revision                                    1.2                             

---=== Memory Characteristics ===---
Maximum module speed                            1600MHz (PC12800)               
Size                                            4096 MB                         
tCL-tRCD-tRP-tRAS                               6-6-6-18                        
Supported CAS Latencies                         6, 5, 4                         
Minimum Cycle Time (CAS 6)                      2.5 ns                          
Maximum Access Time (CAS 6)                     0.4 ns                          
Minimum Cycle Time (CAS 5)                      3 ns                            
Maximum Access Time (CAS 5)                     0.45 ns                         
Minimum Cycle Time (CAS 4)                      3.75 ns                         
Maximum Access Time (CAS 4)                     0.5 ns                          

---=== Manufacturing Information ===---
Manufacturer                                    Patriot Memory                  
Manufacturing Location Code                     0x02                            
Part Number                                     PSD24G8002                      
Manufacturing Date                              2010-W38                        
Assembly Serial Number                          0xC9131B28                      

Here's

hwinfo --memory

output:

01: None 00.0: 10102 Main Memory
  [Created at memory.61]
  Unique ID: rdCR.CxwsZFjVASF
  Hardware Class: memory
  Model: "Main Memory"
  Memory Range: 0x00000000-0x1f3791fff (rw)
  Memory Size: 8 GB
  Config Status: cfg=new, avail=yes, need=no, active=unknown

Not certain what else anyone might want for added 'warm and fuzziness' to take the plunge.

On another note, the corsair XMS2 twin2x4096-6400c5c did not work for me contrary to many other posts claiming they do. I will qualify that a bit further by stating that I could not get either DIMM to boot in the first socket. The one closest to the cpu. If I put one in the other socket and nothing in the one closest to the cpu it booted fine. If I left the 1GB stock in its shipped socket (closest to the cpu) and put one of the corsair modules in other socket it would boot and show ~3GB - 128MB (shared video ram reservation?).

In any case I robbed some memory out of my son's machine. A pair of supertalent T8UB2GC5 modules also DDR2-800 PC6400. They show up as [4-5-5-15 DDR2] in frontview.

I hope that's helpful.
Thanks,
--Gary