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Old A8V Deluxe running mem at 100Mhz


AsktheLameGuy

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Hello there,

 

I have recently put together a system for my son. Problem is, I can only get the system to run the memory modules at 100 Mhz. Anyone got any good ideas? Memory checks out ok with memtest, both pairs work as dual channel when I run only that poair. I have tried many different settings among them running at 333.

 

What follows is an excerpt from CPU-Z.:

 

 

------------------------------------------------------------------------------

 

Mainboard Model A8V Deluxe (0x356 - 0x15257268)

 

 

Processors Information

------------------------------------------------------------------------------------

 

Processor 1 (ID = 0)

Number of cores 2 (max 2)

Number of threads 2 (max 2)

Name AMD Athlon 64 X2 4600+

Codename Manchester

Specification AMD Athlon 64 X2 Dual Core Processor 4600+

Package Socket 939

CPUID F.B.1

Extended CPUID F.2B

Brand ID 5

Core Stepping BH-E4

Technology 90 nm

Core Speed 2403.2 MHz (12.0 x 200.3 MHz)

HT Link speed 1001.3 MHz

Stock frequency 2400 MHz

Instructions sets MMX (+), 3DNow! (+), SSE, SSE2, SSE3, x86-64

L1 Data cache 2 x 64 KBytes, 2-way set associative, 64-byte line size

L1 Instruction cache 2 x 64 KBytes, 2-way set associative, 64-byte line size

L2 cache 2 x 512 KBytes, 16-way set associative, 64-byte line size

FID/VID Control yes

max FID 12.0x

VID range 1.100 V - 1.350 V

Features XD

K8 Thermal sensor yes

K8 Revision ID 4.1

Attached device PCI device at bus 0, device 24, function 0

Attached device PCI device at bus 0, device 24, function 1

Attached device PCI device at bus 0, device 24, function 2

Attached device PCI device at bus 0, device 24, function 3

 

 

Chipset

------------------------------------------------------------------------------

 

Northbridge VIA K8T800 Pro rev. 00

Southbridge VIA VT8237 rev. 00

Graphic Interface AGP

AGP Revision 3.0

AGP Transfer Rate 8x

AGP SBA supported, enabled

Memory Type DDR

Memory Size 2048 MBytes

Channels Dual

Memory Frequency 100.1 MHz (CPU/24)

CAS# 2.0

RAS# to CAS# 3

RAS# Precharge 3

Cycle Time (tRAS) 6

Bank Cycle Time (tRC) 12

DRAM Idle Timer 16

Command Rate 2T

 

 

Memory SPD

------------------------------------------------------------------------------

 

DIMM #1

 

General

Memory type DDR

Manufacturer (ID) Corsair (7F7F9E0000000000)

Size 512 MBytes

Max bandwidth PC3200 (200 MHz)

Part number CMX512-3200C2

Serial number FFFFFFFF

Manufacturing date Week 255/Year 255

 

Attributes

Number of banks 2

Data width 64 bits

Correction None

Registered no

Buffered no

Nominal Voltage 2.50 Volts

EPP no

XMP no

 

Timings table

Frequency (MHz) 200

CAS# 3.0

RAS# to CAS# delay 3

RAS# Precharge 3

TRAS 8

 

 

DIMM #2

 

General

Memory type DDR

Manufacturer (ID) Corsair (7F7F9E0000000000)

Size 512 MBytes

Max bandwidth PC3200 (200 MHz)

Part number CMX512-3200C2

Serial number FFFFFFFF

Manufacturing date Week 255/Year 255

 

Attributes

Number of banks 2

Data width 64 bits

Correction None

Registered no

Buffered no

Nominal Voltage 2.50 Volts

EPP no

XMP no

 

Timings table

Frequency (MHz) 200

CAS# 3.0

RAS# to CAS# delay 3

RAS# Precharge 3

TRAS 8

 

 

DIMM #3

 

General

Memory type DDR

Manufacturer (ID) Corsair (7F7F9E0000000000)

Size 512 MBytes

Max bandwidth PC3200 (200 MHz)

Part number CMX512-3200XL

 

Attributes

Number of banks 2

Data width 64 bits

Correction None

Registered no

Buffered no

Nominal Voltage 2.50 Volts

EPP no

XMP no

 

Timings table

Frequency (MHz) 200

CAS# 2.0

RAS# to CAS# delay 2

RAS# Precharge 2

TRAS 5

 

 

DIMM #4

 

General

Memory type DDR

Manufacturer (ID) Corsair (7F7F9E0000000000)

Size 512 MBytes

Max bandwidth PC3200 (200 MHz)

Part number CMX512-3200XL

 

Attributes

Number of banks 2

Data width 64 bits

Correction None

Registered no

Buffered no

Nominal Voltage 2.50 Volts

EPP no

XMP no

 

Timings table

Frequency (MHz) 200

CAS# 2.0

RAS# to CAS# delay 2

RAS# Precharge 2

TRAS 5

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Plus it looks like you are mixing them in the different channels modules should be installed that match in slots A1 and B1 and A2 and B2. But all of the modules would need to be matched and with more than two modules installed on this platform DDR333 would be suggested.
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Thank you for your reply.

 

Actually, the memories are paired properly in 1, 3 and 2, 4 (A1, B1 etc) repsectively. Why CPU-Z chooses to report it otherwise is beyond me.

 

Thus the matching pairs are running in 1, 3 and/or 2, 4. Both pairs work properly when only that pair is being used in 1, 3 or 2, 4 and get reported as 200Mhz. Any other suggestions beside buying new memory? The fact that these memories don't mix is nothing that is evident on the packaging.

 

I have also tried 333 to no avail. So...where does one buy cheap 1 gb mem capsules nowadays? :D

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Try setting this memory in the banks 1 & 2 and 3 & 4. Match them in this configuration. However, you have to face the possibility that you will not get the ideal performance when you mix and match DRAM in a system. AMD of that era was quite finicky about setting to dual channel and very likely reading the SPD gives errors to the recognition algorithm of the on CPU memory controller. For a future rule of thumb, do not expect memories that are not identical to work with boards. IF they do, it is a plus, if they don't, well that's to be expected. Different timings effects dual channel and bandwidth on many boards.
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