HeLP - Memory not detected on ECS 755-A2

[ezsoulja]

ive ordered
Corsair VS512MBKIT400 512MB Kit DDR400 PC3200 Corsair VS1GB400C3 1GB DDR400 PC3200 CAS3
and install them in my motherboard but it seems that only 512 shows upwhen its in the 2nd slot. and if i try to swap the memory from slot 1 (1GB) to the 2nd slot and move the 512 down to the first 1st.. it then detects 1gb. this is the bios and windows. i called tech support prior to this and they said it was because i had different brand name memory cards so then i got the two Corsair memory and its still acting up. i already cleared the cmos along with loading optimized defaults in the bios. i cant think of anything else going wrong.

but when i use EVEREST HOME EDITION and look up the memory SPD, it clearly shows both ram sticks..
below is a log description of the ram that everest shows

--------[ EVEREST Home Edition (c) 2003-2005 Lavalys, Inc. ]------------------------------------------------------------

Version EVEREST v2.20.405
Homepage http://www.lavalys.com/
Report Type Report Wizard
Computer OFFICIAL-80HOFK
Generator OfficialPSDS
Operating System Microsoft Windows XP Professional 5.1.2600 (WinXP Retail)
Date 2005-11-28
Time 21:59


--------[ SPD ]---------------------------------------------------------------------------------------------------------

[ DIMM1: Corsair VS512MB400 ]

Memory Module Properties:
Module Name Corsair VS512MB400
Serial Number None
Module Size 512 MB (2 ranks, 4 banks)
Module Type Unbuffered
Memory Type DDR SDRAM
Memory Speed PC3200 (200 MHz)
Module Width 64 bit
Module Voltage SSTL 2.5
Error Detection Method None
Refresh Rate Reduced (7.8 us), Self-Refresh

Memory Timings:
@ 200 MHz 2.5-3-3-8 (CL-RCD-RP-RAS)

Memory Module Features:
Early RAS# Precharge Not Supported
Auto-Precharge Not Supported
Precharge All Not Supported
Write1/Read Burst Not Supported
Buffered Address/Control Inputs Not Supported
Registered Address/Control Inputs Not Supported
On-Card PLL (Clock) Not Supported
Buffered DQMB Inputs Not Supported
Registered DQMB Inputs Not Supported
Differential Clock Input Supported
Redundant Row Address Not Supported

Memory Module Manufacturer:
Company Name Corsair Memory, Inc.
Product Information http://www.corsairmemory.com/corsair/products.html

[ DIMM2: Corsair VS1GB400C3 ]

Memory Module Properties:
Module Name Corsair VS1GB400C3
Serial Number None
Module Size 1024 MB (2 ranks, 4 banks)
Module Type Unbuffered
Memory Type DDR SDRAM
Memory Speed PC3200 (200 MHz)
Module Width 64 bit
Module Voltage SSTL 2.5
Error Detection Method None
Refresh Rate Reduced (7.8 us), Self-Refresh

Memory Timings:
@ 200 MHz 3.0-3-3-8 (CL-RCD-RP-RAS)

Memory Module Features:
Early RAS# Precharge Not Supported
Auto-Precharge Not Supported
Precharge All Not Supported
Write1/Read Burst Not Supported
Buffered Address/Control Inputs Not Supported
Registered Address/Control Inputs Not Supported
On-Card PLL (Clock) Not Supported
Buffered DQMB Inputs Not Supported
Registered DQMB Inputs Not Supported
Differential Clock Input Supported
Redundant Row Address Not Supported

Memory Module Manufacturer:
Company Name Corsair Memory, Inc.
Product Information http://www.corsairmemory.com/corsair/products.html

 

[Harvey]

It sounds like your board doesn't like the mismatched RAM sticks. You could borrow a matched pair of sticks from a friend to test it If it still does the same thing, it would suggest your motherboard has problems with your second RAM slot.

Good luck.

 

[ezsoulja]

when u say mismatched ram sticks. .do u mean by the size of the sticks ? because both are valuse selects and the only difference between em is their memory sizes & 1 is 2.5 cas and the other is 3.

 

[Harvey]

Mismatched means anything different between the two sticks, including size, brand, maker of the actual RAM chips and even the layout of the circuit boards.

Some motherboards will accept a wide variation of sticks with no problem. Others can be sensitive. Try a matched pair of 512's or 1 GB sticks. If that works, the problem is the mismatched RAM. If not, the problem is your motherboard.

 

[ezsoulja]

here we go with the returning of ram. i must have returned 3-5 ram sticks already prior of this problem.. i just ordered another 1gb stick.. lets see how this goes. :crosses fingers: