Motherboard has trouble with amount of RAM

[quixoticduck]

Ok when I go into BIOS with the two Micron sticks in 1 and 3 it shows 400Mhz and says timing mode is set to auto. It also says:
CAS latency: 3
min RAS active time: 8t
RAS to CAS delay: 3t
Row precharge time: 3t
Row cycle time: 11t
Row refresh cycle time: 14t
read-to-write time: 5t
write recovery time: 3t
memory timing: t2

but I think that when I put more sticks in it changes to 333mhz, I will double check that now. I found a post online which said:
"As it wasn't even getting to the POST I figured the board (or a slot) might be screwed, but I set the memory timings back to Auto, inserted the modules and now it's up with 4GB

Seems to auto-detect the RAM at DDR400 if there are 2 modules in dual channel, but DDR333 if all 4 slots are in use... I had the memory settings tuned manually to the ratings on the modules (DDR400 2-3-3-6 1T) which works perfectly for 2x1GB."

but I can't work out if they're saying that it was good or bad that it is switching to 333 and whether I should do anything. They seem to have their problem solved?

I'll put in more RAM and check the BIOS again.

 

[MoInSTL]

IIRC, the 1007 BIOS was the final one they used.

 

[quixoticduck]

Ok, with all RAM sticks in and Micron sticks still in slots 1 and 3 the BIOS memory timings now say:

timing mode: auto
memclock index mhz:333mhz
CAS latency: 2.5
min RAS active time: 7t
RAS to CAS delay: 3t
Row precharge time: 3t
Row cycle time: 10t
Row refresh cycle time: 12t
read-to-write time: 4t
write recovery time: 3t
memory timing: t2

The CPU-Z shows this with all sticks in:

Memory SPD
-------------------------------------------------------------------------

DIMM # 1
SMBus address 0x50
Memory type DDR
Manufacturer (ID) Micron Technology (2CFFFFFFFFFFFFFF)
Size 1024 MBytes
Max bandwidth PC3200 (200 MHz)
Part number 16VDDT12864AG40BDB
Serial number CD02F303
Manufacturing date Week 66/Year 05
Number of banks 2
Data width 64 bits
Correction None
Registered no
Buffered no
Nominal Voltage 2.50 Volts
EPP no
XMP no
AMP yes
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 2.0-2-2-6-n.a. @ 133 MHz
JEDEC #2 2.5-3-3-7-n.a. @ 166 MHz
JEDEC #3 3.0-3-3-8-n.a. @ 200 MHz
AMP profile
Min Cycle time 1.#IO ns (0 MHz)
Max CL -2147483648.0
Min tRP 1.#J ns
Min tRCD 1.#J ns
Min tRAS 1.#J ns
Min tRFC -1.#J ns
AMP timings table CL-tRCD-tRP-tRAS-tRC @ frequency
AMP #1 -2147483648.0--2147483648--2147483648--2147483648--2147483648 @ 0 MHz

DIMM # 2
SMBus address 0x51
Memory type DDR
Manufacturer (ID) Micron Technology (2CFFFFFFFFFFFFFF)
Size 1024 MBytes
Max bandwidth PC3200 (200 MHz)
Part number 16VDDT12864AG40BDB
Serial number CD02F302
Manufacturing date Week 66/Year 05
Number of banks 2
Data width 64 bits
Correction None
Registered no
Buffered no
Nominal Voltage 2.50 Volts
EPP no
XMP no
AMP yes
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 2.0-2-2-6-n.a. @ 133 MHz
JEDEC #2 2.5-3-3-7-n.a. @ 166 MHz
JEDEC #3 3.0-3-3-8-n.a. @ 200 MHz
AMP profile
Min Cycle time 1.#IO ns (0 MHz)
Max CL -2147483648.0
Min tRP 1.#J ns
Min tRCD 1.#J ns
Min tRAS 1.#J ns
Min tRFC -1.#J ns
AMP timings table CL-tRCD-tRP-tRAS-tRC @ frequency
AMP #1 -2147483648.0--2147483648--2147483648--2147483648--2147483648 @ 0 MHz

DIMM # 3
SMBus address 0x52
Memory type DDR
Manufacturer (ID) Corsair (7F7F9E0000000000)
Size 1024 MBytes
Max bandwidth PC3200 (200 MHz)
Part number VS1GB400C3
Number of banks 2
Data width 64 bits
Correction None
Registered no
Buffered no
Nominal Voltage 2.50 Volts
EPP no
XMP no
AMP yes
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 2.5-3-3-7-n.a. @ 166 MHz
JEDEC #2 3.0-3-3-8-n.a. @ 200 MHz
AMP profile
Min Cycle time 1.#IO ns (0 MHz)
Max CL -2147483648.0
Min tRP -1.#J ns
Min tRCD 1.#J ns
Min tRAS -1.#J ns
Min tRFC -1.#J ns
AMP timings table CL-tRCD-tRP-tRAS-tRC @ frequency
AMP #1 -2147483648.0--2147483648--2147483648--2147483648--2147483648 @ 0 MHz

DIMM # 4
SMBus address 0x53
Memory type DDR
Manufacturer (ID) Corsair (7F7F9E0000000000)
Size 1024 MBytes
Max bandwidth PC3200 (200 MHz)
Part number VS1GB400C3
Serial number 720C3B00
Number of banks 2
Data width 64 bits
Correction None
Registered no
Buffered no
Nominal Voltage 2.50 Volts
EPP no
XMP no
AMP yes
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 2.5-3-3-7-n.a. @ 166 MHz
JEDEC #2 3.0-3-3-8-n.a. @ 200 MHz
AMP profile
Min Cycle time 1.#IO ns (0 MHz)
Max CL -2147483648.0
Min tRP -1.#J ns
Min tRCD 1.#J ns
Min tRAS -1.#J ns
Min tRFC -1.#J ns
AMP timings table CL-tRCD-tRP-tRAS-tRC @ frequency
AMP #1 -2147483648.0--2147483648--2147483648--2147483648--2147483648 @ 0 MHz

So is it a problem that the two Corsair sticks only say @ 166 MHz, @200 MHz while the Microns say @133MHz @ 166 MHz, @200 MHz or is the problem that the Auto thingy is changing the settings?

Should I do that the guy said where he changed the settings with 4 sticks in to be what they'd been with only two? (e.g. 400mhz etc) or what someone here said about changing it to 266MHz? A bit confused.

Thanks

 

[kbp]

You need to put matching ram in slots 1 and 3. Then matching in 2 and 4. By "matching" I mean same BRAND (and timing) of ram. The slowest needs to be in the first or #1 and #3 slots.

 

[quixoticduck]

You need to put matching ram in slots 1 and 3. Then matching in 2 and 4. By "matching" I mean same BRAND (and timing) of ram. The slowest needs to be in the first or #1 and #3 slots.

That's so weird, I swear I put the matching pairs in 1 and 3 and 2 and 4. It's running dual channel and it's how they were placed when I got the computer with its two sticks in... but from the info I've put it looks like slot 1 and 2 match and then 3 and 4. Quite confused. And is Micron slowest? :|

Just to ask, the computer worked ok with 3.5gb of memory in but was single channel. If I can't get this to work is it best to go back to that or to 2GB dual channel? Thanks.

 

[quixoticduck]

You need to put matching ram in slots 1 and 3. Then matching in 2 and 4. By "matching" I mean same BRAND (and timing) of ram. The slowest needs to be in the first or #1 and #3 slots.

When I look physically in my computer it goes
first slot: micron
second: corsair
third: micron
fourth: corsair

but my CPU-Z txt file that I've pasted here seems to write it as
micron
micron
corsair
corsair

so I'm a bit confused. :|

 

[quixoticduck]

Also, if my RAM timings are set to 'auto' shouldn't that pick the best timings automatically?