I have a issue with my wifes PC she uses for photoshop....
Soltek 915G-FBR mb
Pent 4 540J 3.2 ghz
PCI-E X800 Pro 256 Raedon graphics card
2 ( 1gb each) sticks Rosewill DDR400 Memory ( 2 more just purchased)
XP Pro sp2
the issue ...
The Soltek MB says it can support up to 4 gb of ram. ( I realize that XP will show/cap that around 3.25 +/- ) She wanted to add more to try & speed up Photoshop... The PC was built last April... Last week purchased more Rosewill memory same spec... ( did notice the chips have a diff logo).. Anyway when i add the 2 extra memory modules to slots 2&4 I get a resource conflict with the video card..This causes it to refresh video dog slow.. if you scroll it will be real jerky... Tried it with just 1 extra memory module.. same result.. take them out its all fine again...
All the modules are DDR400 pc3200 1 gb but not Dual Channel... Do I need dual channel to run 4 gb memory without conflict? I bumped the voltage a bit for the memory chips & looked around bios for anything remotely related to this but no luck..
this is from the manual --
• This mainboard supports up to 4GB unbuffered Dual-channel DDR
400/333 SDRAM, with 4 DDR DIMM slots on board. Do not insert
other type of modules into these slots.
Populate Bank A / Bank B / Bank A+Bank B with identical DIMMs
Slot Rib (2.5V Voltage Key) DDR Notch
To Boot PC with Dual Channel Memory Configuration
To Populate one DIMM or two DIMMs in 2 different Banks will boot
PC with single-channel memory configuration.
To Boot PC with Single Channel Memory Configuration
• Dual Channel Memory Configuration is formed by couple of identical
• Matched DIMMs need to have identical density, DRAM technology,
DRAM bus width, and equal number of memory banks.
• The dual memory controller can double the DDR memory bandwidth
up to 6.4GB/s with DDR400, 5.4GB/s with DDR333..