VS512MB400C3 failing Memtest

[darthasp]

I have a real problem with some corsair modules...

 

My System:

 

Asus A7n8x-E deluxe BIOS 1013

Athlon 3200+

Hiperpower 350W CPU

 

I have a matched pair of VS512MB400C3 and the system is very unstable

 

I Have performed the following tests according to advice on this forum.

POSTID # = 171208 | #8

POST ID # = 115264 | #2

 

 

1. I have set the Jumper setting on Motherboard from default 1-2 to 2-3

 

 

2. Tested my machine in memory slot 1 with a very cheap no named piece of RAM

184 Pin Dimm - SDRAM - 2.5V - DDR - PC2100 (PC-266) - Non-ECC

Bios Settings = Auto

Memtest reported RAM 200Mhz (DDR400) / CAS 3-3-3-8 / Single Channel (64bits)

Three passes of standard test no errors

Machine boots and runs without blue screen

 

So this proves nothing wrong with machine or slot...

 

Results on Corsair Value Select Matched pair RAM in same slot

 

Using Memtestx86 V3.2

 

Module 1 = 784-0511099-0222809

 

Test 1:

3-4-4-8 + 2.7v

200Mhz Single Channel

Result: MemTest #6 = Errors

 

Test 2:

3-3-3-8 + 2.7V

200Mhz Single Channel

Result: MemTest #3 = Errors

 

Test 3:

2.5-3-3-8 + 2.7v

200Mhz Single Channel

Result: Memtest #5 = Errors

 

Test 4:

2.5-3-3-6 + 2.7v

200Mhz Single Channel

Result: Memtest #5 = Errors

 

Test 5:

3-4-4-8 + 2.7V

166Mhz Single Channel

Result: Memtest #6 = Errors

 

Test 6:

3-3-3-8 + 2.7v

166Mhz Single Channel

Result: Memtest #4 = Errors

 

 

 

Module 2 = 784-0511099-0222810

 

Test 1:

3-4-4-8 + 2.7v

200Mhz Single Channel

Result: MemTest #7 = Errors

 

Test 2:

3-3-3-8 + 2.7V

200Mhz Single Channel

Result: MemTest #3 = Errors

 

Test 3:

2.5-3-3-8 + 2.7v

200Mhz Single Channel

Result: Memtest #5 = Errors

 

Test 4:

2.5-3-3-6 + 2.7v

200Mhz Single Channel

Result: Memtest #5 = Errors

 

Test 5:

3-4-4-8 + 2.7V

166Mhz Single Channel

Result: Memtest two passes no errors

 

Test 6:

3-3-3-8 + 2.7v

166Mhz Single Channel

Result: Memtest two passes no errors

 

Tested both sticks in another machine and it will not POST.

 

I would like to run my memory at 200mhz in dual channel mode

 

Any other suggestions....?

 

Thanks for your help in advance... :):

 

Regards

 

Phil

[RAM GUY]

Getting errors with both modules would suggest some other problem.

Please try these settings:

With the A7N8X-E and bios version 1.013 or newer please set the FSB jumper to pins 2-3 with the modules in slots 2-3 and then reset or clear the bios and load setup defaults and set the Dim Voltage to 2.7 Volts and set the timings manually. Then please test the system with http://www.memtest.org.

CPU Freq: 200 MHz

System Performance: User Define

Memory Frequency: 100%

Dim Voltage to 2.7 Volts

Resulting Frequency: 200 MHz

SDRAM CAS Latency: 3T

SDRAM RAS to CAS Delay (tRCD): 3T

SDRAM Row Precharge (tRP): 3T

SDRAM Active to Precharge Delay (tRAS): 8T

 

Some have reported success disabling Spread Spectrum in the bios as well. I would take a look at http://www.asusforums.org as well in the AMD section.

[darthasp]

Hi there

 

I checked the jumper for the FSB and made sure it is on 2-3

Clear CMOS the manual way by jumpers

 

and set following

 

 

CPU external Freq 200Mhz

System Performance - User defined

Memory Freq 100%

SDRAM Active Precharge Delay 8

SDRAM RAS to CAS Delay 3

SDRAM RAS Precharge Delay 3

SDRAM CAS Latency 3T

FSB Spread Spectrum Disabled

Voltage 2.7

 

memtest errors from test 4 onwards 120,000 errrors at mo...

[RAM GUY]

Please follow the link in my signature “I think I have a bad part! Or *New* Tech Support Express” and we will be happy to replace them or it!

[darthasp]

Thanks for your help

[RAM GUY]

Please let me know when you get the new modules.