PC3200 recognized as PC2500 ???????

Is your memory not fully recognized? (Intel VX chipset Memory recognition)
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U2foreverU2
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Posts: 13
Joined: Thu Aug 24, 2006 5:48 pm

Lately I had some boot problems with my PC. I changed PSU and updated BIOS. After resolving (at least it seems for the moment) by changing option AI overclocking [AUTO] into [STANDARD] in the Bios settings my pc didn't show any boot problems anymore but it seems my PC performance is not exactly as it was before. Maybe it's just my impression but because of that I would like if somebody could take a look at some of my bios settings and maybe can give me some suggestions of what is wrong or what could be better. But it has to be clear that I don't intend to overclock my PC. I just want a good performance of my PC. I have used program Everest to get some information of my PC. For example I found it strange that somewhere (northbridge information) it's "speaking" of DDR-SDRAM PC2500 memory type and somewhere else PC3200 (and I'm almost sure that the memory type is PC3200).
Maybe someone could also take a look at my FSB, Memory Bus & Chipset Bus Properties (speed, clock etc...)
Before maybe somebody answers.....you have to know that I'm not an EXPERT at all about HARDWARE material, BIOS SETTINGS, memory modules etc etc....
Underneath some PC information (I hope someone can have some suggestions for me):

General Information :
NorthBridge : VIA K8T800 Pro
NorthBridge : AMD K8 Bridge
SouthBridge : VT8237 PCI to ISA Bridge

NorthBridge Information :
Architecture : HUB
Manufacturer : VIA (ASUSTeK Computer Inc)
Revision : 00

NorthBridge Information :
Architecture : HUB
Manufacturer : AMD
Revision : 00
HTT Frequency : 200.3 MHz
Memory Frequency (max.) : 200 MHz

Memory Information :
Type : DDR-SDRAM PC2500
Frequency : 157.3 MHz
FSB/RAM Multiplier : CPU/14x
Supported Channels : Dual
Activated Channels : Dual
ECC Diagnostic : No
CAS Latency (tCL) : 2.5 clocks
RAS to CAS (tRCD) : 3 clocks
RAS Precharge (tRP) : 3 clocks
Cycle Time (tRAS) : 8 clocks
Bank Cycle Time (tRC) : 11 clocks
DRAM Idle Timer : 16 clocks

APIC Information :
Version : 0.03
Maximum Interrupts : 24
IRQ Handler enabled : Yes

Device Capabilities :
Latency Timer : 64 clocks
I/O Access : No
Memory Access : Yes
Bus Master Capable : Yes
Special Cycle Recognition : No
Memory Write & Invalidate : No
VGA Palette Snoop : No
Parity Error Response : No
Cycle Wait : No
System Error Line : Yes
Fast Back-to-Back : No
Detects Parity Errors : No
User Defined Format : No
PCI 66Mhz Bus Support : Yes
New Capability List : Yes
PCI Support : AGP
PCI Support : Power Management Interface
PCI Support : Hyper-Transport
PCI Support : Hyper-Transport

General Information :
DIMM0 (RAS 0, RAS 1) : 512 (Double Bank)
DIMM1 (RAS 2, RAS 3) : 512 (Double Bank)

Information SPD EEPROM (DIMM0) :
Manufacturer : Unspecified
Part Number : Unspecified
Serial Number : Unspecified
Type : DDR-SDRAM PC3200 (200 MHz) - [DDR-400]
Size : 512 MB (2 rows, 4 banks)
Module Buffered : No
Module Registered : No
Module EPP : No
Width : 64-bit
Error Correction Capability : No
Max. Burst Length : 8
Refresh : Reduced (.5x)7.8 µs, Self Refresh
Voltage : SSTL 2.5v
Manufacture : Week 255 of 2155
Supported Frequencies : 200 MHz
CAS Latency (tCL) : 2.5 clocks @200 MHz
RAS to CAS (tRCD) : 3 clocks @200 MHz
RAS Precharge (tRP) : 3 clocks @200 MHz
Cycle Time (tRAS) : 8 clocks @200 MHz

Information SPD EEPROM (DIMM1) :
Manufacturer : Unspecified
Part Number : Unspecified
Serial Number : Unspecified
Type : DDR-SDRAM PC3200 (200 MHz) - [DDR-400]
Size : 512 MB (2 rows, 4 banks)
Module Buffered : No
Module Registered : No
Module EPP : No
Width : 64-bit
Error Correction Capability : No
Max. Burst Length : 8
Refresh : Reduced (.5x)7.8 µs, Self Refresh
Voltage : SSTL 2.5v
Manufacture : Week 255 of 2155
Supported Frequencies : 200 MHz
CAS Latency (tCL) : 2.5 clocks @200 MHz
RAS to CAS (tRCD) : 3 clocks @200 MHz
RAS Precharge (tRP) : 3 clocks @200 MHz
Cycle Time (tRAS) : 8 clocks @200 MHz

Information SPD EEPROM () :
Manufacturer : Unspecified
Part Number : Unspecified
Serial Number : Unspecified
Type : DDR-SDRAM PC3200 (200 MHz) - [DDR-400]
Size : 512 MB (2 rows, 4 banks)
Module Buffered : No
Module Registered : No
Module EPP : No
Width : 64-bit
Error Correction Capability : No
Max. Burst Length : 8
Refresh : Reduced (.5x)7.8 µs, Self Refresh
Voltage : SSTL 2.5v
Manufacture : Week 255 of 2155
Supported Frequencies : 200 MHz
CAS Latency (tCL) : 2.5 clocks @200 MHz
RAS to CAS (tRCD) : 3 clocks @200 MHz
RAS Precharge (tRP) : 3 clocks @200 MHz
Cycle Time (tRAS) : 8 clocks @200 MHz

Information SPD EEPROM () :
Manufacturer : Unspecified
Part Number : Unspecified
Serial Number : Unspecified
Type : DDR-SDRAM PC3200 (200 MHz) - [DDR-400]
Size : 512 MB (2 rows, 4 banks)
Module Buffered : No
Module Registered : No
Module EPP : No
Width : 64-bit
Error Correction Capability : No
Max. Burst Length : 8
Refresh : Reduced (.5x)7.8 µs, Self Refresh
Voltage : SSTL 2.5v
Manufacture : Week 255 of 2155
Supported Frequencies : 200 MHz
CAS Latency (tCL) : 2.5 clocks @200 MHz
RAS to CAS (tRCD) : 3 clocks @200 MHz
RAS Precharge (tRP) : 3 clocks @200 MHz
Cycle Time (tRAS) : 8 clocks @200 MHz

Memory Controller Information :
Memory Controller : ECC, SIMM, DIMM, SDRAM
Number of connectors : 2
Max. Module Size : 1024 MB
Max. Memory Size : 2048 MB
Supported Speed : 70ns, 60ns, 50ns
Supported Voltages : 2.9v
Error Detection Method : 64-bit ECC
Error Correction Capability : Unspecified
Current/Supported Interleave : 1-way/1-way
--------------------------------------------------------------------------------------------------------------

Field Value
Motherboard Properties
Motherboard ID 63-1702-000001-00101111-111405-K8T800P$A0036001_BIOS DATE: 11/14/05 10:31:52 VER: 08.00.09
Motherboard Name Asus A8V Deluxe

Front Side Bus Properties
Bus Type AMD Hammer
Real Clock 200 MHz
Effective Clock 200 MHz
HyperTransport Clock 1000 MHz

Memory Bus Properties
Bus Type Dual DDR SDRAM
Bus Width 128-bit
DRAM:FSB Ratio CPU/14
Real Clock 157 MHz (DDR)
Effective Clock 315 MHz
Bandwidth 5035 MB/s

Chipset Bus Properties
Bus Type VIA V-Link
Bus Width 8-bit
Real Clock 67 MHz (ODR)
Effective Clock 533 MHz
Bandwidth 533 MB/s
Motherboard Physical Info
CPU Sockets/Slots 1 Socket 939
Expansion Slots 5 PCI, 1 AGP
RAM Slots 4 DDR DIMM
Integrated Devices Audio, Gigabit LAN, IEEE-1394
Form Factor ATX
Motherboard Size 240 mm x 300 mm
Motherboard Chipset K8T800Pro
Extra Features Asus Intelligence, JumperFree, Q-Fan 2, Stepless Freq Selection, Ultra-ATA/133, SATA, RAID

-----------------------------------------------------------------------------------------------------------------
Field Value
CPU Properties
CPU Type AMD Athlon 64 3500+
CPU Alias Venice S939
CPU Stepping DH-E3
CPUID CPU Name AMD Athlon™ 64 Processor 3500+
CPUID Revision 00020FF0h

CPU Speed
CPU Clock 2202.9 MHz (original: 2200 MHz)
CPU Multiplier 11.0x
CPU FSB 200.3 MHz (original: 200 MHz)
Memory Bus 157.3 MHz
DRAM:FSB Ratio CPU/14

CPU Cache
L1 Code Cache 64 KB (Parity)
L1 Data Cache 64 KB (ECC)
L2 Cache 512 KB (On-Die, ECC, Full-Speed)

Motherboard Properties
Motherboard ID 63-1702-000001-00101111-111405-K8T800P$A0036001_BIOS DATE: 11/14/05 10:31:52 VER: 08.00.09
Motherboard Name Asus A8V Deluxe (5 PCI, 1 AGP, 4 DDR DIMM, Audio, Gigabit LAN, IEEE-1394)

Chipset Properties
Motherboard Chipset VIA K8T800Pro, AMD Hammer
Memory Timings 2.5-3-3-8 (CL-RCD-RP-RAS)
Command Rate (CR) 2T

SPD Memory Modules
DIMM1 512 MB PC3200 DDR SDRAM (2.5-3-3-8 @ 200 MHz)
DIMM2 512 MB PC3200 DDR SDRAM (2.5-3-3-8 @ 200 MHz)
DIMM3 512 MB PC3200 DDR SDRAM (2.5-3-3-8 @ 200 MHz)
DIMM4 512 MB PC3200 DDR SDRAM (2.5-3-3-8 @ 200 MHz)

BIOS Properties
System BIOS Date 11/14/05
Video BIOS Date 05/09/16
DMI BIOS Version 1017.002

Graphics Processor Properties
Video Adapter Sapphire Radeon 9250
GPU Code Name RV280 (AGP 8x 1002 / 5960, Rev 01)
GPU Clock 241 MHz (original: 240 MHz)
Memory Clock 200 MHz (original: 200 MHz)
AMD Athlon 64 3500+ (Venice) - Socket 939 - 2 x 1024 MB TWINMOS PC3200 (CL3) DDR-DIMM - Motherboard Asus A8V Deluxe - Video Card Saphire Radeon 9250
Denniss
BIOS Guru
Posts: 3153
Joined: Thu Mar 21, 2002 8:16 pm
Location: Near Hannover (CEBIT) Germany
Contact:

It looks like you have four doible-sided 512MB memory sticks of PC-3200 grade installed. But the internal memory controller is not able to use four double-sided sticks with 200 MHz memory clock so it switched back a little and now uses them as PC-2700 though a little underclocked.

Your CPU should not have problems with 200 MHz memory operation if using four single-sided sticks of 512MB or two 1GB sticks.
U2foreverU2
New visitors - please read the rules.
Posts: 13
Joined: Thu Aug 24, 2006 5:48 pm

First of all thx for yr quick reply.
1) Could you pls explain me what's the internal memory controller ?

2) It seems that I have resolved (??????????) the problem of the PC3200 recognition. But because you're a BIOS guru I'll ask you if I did something terribly wrong.

Just a few minutes ago I posted another topic on another forum. I will copy it in here and I would like to please you if you can take a look and tell me what you think and / or you have some suggestions.

Here's the message I posted :

I have an AThlon 64 3500+ (ca. 2.2 Ghz) Revision DH-E3. Processor Core: Venice (socket 939). 4 x 512 MB DDR-SDRAM (manufacturer : S3+) PC3200. Video Card : RADEON 9250 (RV280)
Mobo Asus A8V Deluxe. Bios (latest) Update version 1017.002 (14/11/05).
Lately I have changed my PSU (now it's 500W) because due to some fall out (of electricty) in the house the old one was burned.
After installing the new PSU sometimes I got some message after boot: "System Failed Due to CPU overclocking". But I haven't ever overclocked. I had never changed before any settings in my Bios. I updated my Bios with the latest version, but still sometimes my PC won't boot up. The CPU fan and PSU fan are working, the LED light is green (on the left of the front board) and another light red (on the right). But now screen. Sometimes by turning on and off I can manage to enter into the BIOS screen. The I load the DEFAULT settings and then I can work !. If I do a re-boot fm Windows XP (service pack 2) my system is ALWAYS (!!) (re)booting up normally and I can keep on working. Sometimes also it starts up when my system (power off etc) is off just for a little while, but almost everytime when I want to start my system in the mornings it goes wrong. That's strange not. Somewhere I read that Asus A8V deluxe motherboards (or AMD processors) doesn't always "eat" the AUTO settings in the BIOS and it seems that some AUTO settings can create some problems. I don't know if it true because I almost don't know anything about the right settings.
For example one of the DEFAULT settings is AI overclocking AUTO. Also strange was that Everest recognized my PC3200 ram as PC2500. In my Bios my memclock mode was on AUTO. For curiousity i changed it into LIMIT and so that it was on Memclock Mode to CPU ratio 1:1. Only after I changed that to 2:1 DDR400 the program Everest recognized PC3200 ram. I don't know if I did the right thing by changing this. It was only because I had written it somewhere on a forum. Anyway even with that I still have most of the time the same problems and sometimes the BIOS error. I have made some pictures fm my BIOS settings. So if someone like (and have the time) to "study" them and maybe can help me with some suggestions I would be really grateful !
I almost forgotten something. Does anyone knows the right CPU core voltage for my AMD64 3500+ and maybe also the other right voltages like DDR, AGP etc. In BIOS everything is on AUTO.
The program Central Brain Identifier (looks a little like CPU-Z) shows (while I'm working right now):
Current Voltage : 1,134
Start-Up : 1,400
Minimum : 1,100
Max: 1,450

Last notation:
Is it correct that my Radeon 9250 has GPU clock : 241 and memory clock: 200 ??

I hope that someone can help me by eliminating my Boot en Bois settings problems ??????????


Denniss wrote:It looks like you have four doible-sided 512MB memory sticks of PC-3200 grade installed. But the internal memory controller is not able to use four double-sided sticks with 200 MHz memory clock so it switched back a little and now uses them as PC-2700 though a little underclocked.

Your CPU should not have problems with 200 MHz memory operation if using four single-sided sticks of 512MB or two 1GB sticks.
AMD Athlon 64 3500+ (Venice) - Socket 939 - 2 x 1024 MB TWINMOS PC3200 (CL3) DDR-DIMM - Motherboard Asus A8V Deluxe - Video Card Saphire Radeon 9250
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