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I just bought 2 Gb of RAM (two 1 Gb, 400Mhz DIMMS) for my A8N5X-based computer, and after getting the RAM installed, the computer doesn't boot. Previously, I had two 512 Mb 400Mhz DIMMS, and it worked fine; however, after taking all the RAM out -- even what was there -- and only putting in one of the new sticks into the A1 or B1 slots, the computer still doesn't boot. I don't see anything on screen, not even the BIOS.
I have no idea what's going on. I don't have a PC speaker to see if I'm getting posts, but the computer works fine with the old RAM. Any ideas?
Not sure if they're unbuffered. I unfortunately bought from a generic site where it's not listed. Don't know if this helps, but the chipset on the ram is Samsung K4H510838B-TCCC:
http://www.google.com/search?q=Samsung+K...
No dice. The mobo still doesn't boot.
Not sure if they're unbuffered. I unfortunately bought from a generic site where it's not listed. Don't know if this helps, but the chipset on the ram is Samsung K4H510838B-TCCC:
Just to verify, are you certain the new DIMMS are unbuffered? That MB does not support buffered DIMMS.
If so, try to install the old ones in A1 and B1 and the new ones in A2 and B2. See if it will boot. If so, check your system to see if the total RAM is being "seen". Comment back.
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There are 4 RAM slots. 2 are taken and 2 are free. To upgrade to the maximum amount of RAM you need to place 2 sticks of 4 GB on the free slots.
DDR3 PC3-12800 • CL=11 • UNBUFFERED • NON-ECC • DDR3-1600 • 1.35V • 256MEG X 64 •
Upgrading RAM on your ASUS P4B-MX Motherboards is easy, we carry compatible RAM Upgrade for ASUS P4B-MX Motherboards, the ASUS P4B-MX Motherboards takes the PC100/133 SDRAM DIMMs.
Supports ECC RAM Type, and comes installed with 0 MB (removable) of RAM. You can upgrade your ASUS P4B-MX Motherboards to up to a maximum of 3.0 GB RAM, the Motherboards has 3 sockets to install RAM, already with 0 MB (removable) standard RAM installed. For best Motherboards performance use the maximum amount of allowed RAM per slot for your system.
Buy our Motherboards RAM with confidence, we provide lifetime warranty on all RAM Modules purchased, backed with an excelled customer support. Choose the following RAM Upgrade for ASUS P4B-MX Motherboards. If you're not sure if a module is right for your system, use the Crucial Memory Advisor tool for a list of guaranteed compatible modules
the RAM upgrade will depend on ur motherboard capacity and specification.
u need to check ur MB manual
if ur MB can have only SD RAM then only SD RAM upgrade is possible...DDR will not work....
so be careful while buying ur RAM
intelD845GLLy MB...the following details are from the intel website
System Memory Features
The D845GLLY board provide the following memory features:
Two DIMM sockets supporting 3.3 V (only) 168-pin 133 MHz Single Data Rate (SDR) SDRAM DIMMs with gold-plated contacts
Unbuffered non-ECC DIMMs only
Maximum total system memory: 2 GB; minimum total system memory: 64 MB
Serial Presence Detect (SPD) DIMMs only
Suspend to RAM
Caution
Do not use ECC DIMMs with the Desktop Board. Using ECC DIMMs could damage the Desktop Board. Integrator's Notes:
Registered DIMMs are not supported on the Desktop Board.
This Desktop Board has been designed to support DIMMs based on 512 Mbit technology for a maximum onboard capacity of up to 2 GB, but this technology has not been validated on this board.
Note
To be fully compliant with all applicable PCI33 SDRAM memory specifications, the board should be populated with DIMMs that support the Serial Presence Detect (SPD) data structure. This allows the BIOS to read the SPD data and program the chipset to accurately configure memory settings for optimum performance.
hope this helps
Reg....bye
From the Asus spec site:
Memory
Memory Type
DDR SDRAM
Number of Memory Slots
4 x 184 Pin DIMMs
Supported RAM speeds
400 MHz • 333 MHz • 266 MHz
Max Supported RAM
4 GB
Memory
Memory Type
DDR SDRAM
Number of Memory Slots
4 x 184 Pin DIMMs
Supported RAM speeds
400 MHz • 333 MHz • 266 MHz
Max Supported RAM
4 GB
DDR SDRAM 400; 333; 266mhz
4 GB max 4x1024 184pin
Hope this helps.
Memory Upgrade for eMachines eMachines
T5082 Computer, the eMachines eMachines T5082 Computer takes the
PC2-4200 DDR2 SDRAM DIMMs. Supports Dual Channel DDR2. Memory Type, and
comes installed with 512 MB (removable) of Memory. You can upgrade your
eMachines eMachines T5082 Computer to up to a maximum of 2.0 GB Memory,
the system has 2 sockets to install Memory, already with 512 MB
(removable) standard Memory installed. For best Computer performance
use the maximum amount of allowed Memory per slot for your Computer.
Choose the following Memory Upgrade for eMachines eMachines T5082 Computer.
The ASUS P5RD1-VM takes the PC2700/3200 DDR SDRAM DIMMs. You can upgrade your ASUS P5RD1-VM to up to a maximum of 2.0 GB Memory, the system has 2 sockets to install Memory. For best system performance use the maximum amount of allowed Memory per slot for your system i.e. 1 GB.
You can use only DDR 266Mhz dimms maximum upto 2 GB. i.e. one DIMMS of 266Mhz of 2GB or two of 1GB each. For more details read bellow:
System Memory Features
The D845GBV board provide the following memory features:
Two DIMM sockets supporting 2.5 V (only) 184-pin 200/266 MHz Double Data Rate (DDR) SDRAM DIMMs with gold-plated contacts Unbuffered non-ECC DIMMs only Maximum total system memory: 2 GB; minimum total system memory: 64 MB Serial Presence Detect (SPD) DIMMs only Suspend to RAM
CAUTION: Do not use ECC DIMMs with the D845GBV board. Using ECC DIMMs could damage the Desktop Board.
DDR SDRAM
Number of Memory Slots
4 x 184 Pin DIMMs
Supported RAM speeds
400 MHz • 333 MHz • 266 MHz
Max Supported RAM 
No dice. The mobo still doesn't boot.
Not sure if they're unbuffered. I unfortunately bought from a generic site where it's not listed. Don't know if this helps, but the chipset on the ram is Samsung K4H510838B-TCCC:
http://www.google.com/search?q=Samsung+K...
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