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try to check your motherboard it is INTEL 915G if so, see this info below.
1.6 System Memory
The boards have four DIMM sockets and support the following memory features:
• 2.5 V (only) DDR SDRAM DIMMs with gold-plated contacts
• Unbuffered, single-sided or double-sided DIMMs with the following restriction:
Double-sided DIMMS with x16 organization are not supported.
• 4 GB maximum total system memory. Refer to Section 2.2.1 on page 55 for information on the
total amount of addressable memory.
• Minimum total system memory: 128 MB
• Non-ECC DIMMs
• Serial Presence Detect
• DDR 400 MHz and DDR 333 MHz SDRAM DIMMs
Table 6 lists the supported system bus frequency and memory speed combinations.
Table 6. Supported System Bus Frequency and Memory Speed Combinations
To use this type of DIMM… The processor's system bus frequency must be…
DDR 400 800 MHz
DDR 333 (Note) 800 or 533 MHz
Note: When using an 800 MHz system bus frequency processor, DDR 333 memory is clocked at 320 MHz. This minimizes
system latencies to optimize system throughput.
• Remove the PCI Express x16 video card before installing or upgrading memory to avoid
interference with the memory retention mechanism.
• To be fully compliant with all applicable DDR 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. If non-SPD memory is installed, the BIOS will
attempt to correctly configure the memory settings, but performance and reliability may be
impacted or the DIMMs may not function under the determined frequency.
2.2 Memory Resources
2.2.1 Addressable Memory
The board utilizes 4 GB of addressable system memory. Typically the address space that is
allocated for PCI Conventional bus add-in cards, PCI Express configuration space, BIOS (firmware
hub), and chipset overhead resides above the top of DRAM (total system memory). On a system
that has 4 GB of system memory installed, it is not possible to use all of the installed memory due
to system address space being allocated for other system critical functions. These functions include
• BIOS/firmware hub (2 MB)
• Local APIC (19 MB)
• Digital Media Interface (40 MB)
• Front side bus interrupts (17 MB)
• PCI Express configuration space (256 MB)
MCH base address registers, internal graphics ranges, PCI Express ports (up to 512 MB)
• Memory-mapped I/O that is dynamically allocated for PCI Conventional and PCI Express addin
The amount of installed memory that can be used will vary based on add-in cards and BIOS
settings. Figure 17 shows a schematic of the system memory map. All installed system memory
can be used when there is no overlap of system addresses.
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Posted on Nov 27, 2008
Gateway's website says this motherboard will support 4GB of DDR333 or DDR400 memory. I would suggest testing each memory modules by plugging it into the board by itself, then rebooting. This way you can catch a bad DIMM that might be causing problems. If each one checks out then start adding one module at a time, rebooting after each one. If it still stops booting after you add a module, you probably have a bad system board, and only now that you are adding the extra memory are you finding that out. If that is the case, try contacting Gateway support. Maybe they would be kind enough to cover repair under warranty.
Posted on Nov 27, 2008
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Posted on Jan 02, 2017
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