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Issues with dual channel?

post #1 of 4
Thread Starter 
Hey guys.

I'm running 2 sticks of pc3200 ram, both are 512mb. Both are generic sticks, but made by different manufacturers.

Here is the specs from Everest:

SPD Memory Modules:
DIMM1
512 MB PC3200 DDR SDRAM (3.0-4-4-8 @ 200 MHz)

DIMM2
512 MB PC3200 DDR SDRAM (3.0-4-4-8 @ 200 MHz) (2.5-4-4-7 @ 166 MHz)

Ive overclocked slightly to 2.5-4-3-8, I'm still using the factory voltage, and I've got heatsinks on both.

My problem is that when I try to run them as dual channel, my system wont boot, regardless of the timings. Is this because one can be ran at the different speed, or something else that I might be overlooking?
    
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Pentium 4 3.0ghz Prescott Gigabyte 8IPE1000pro2 Powercolor x1950Pro 256mb AGP 2x1gb Kingston DDR400 
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CPUMotherboardGraphicsRAM
Pentium 4 3.0ghz Prescott Gigabyte 8IPE1000pro2 Powercolor x1950Pro 256mb AGP 2x1gb Kingston DDR400 
Hard DriveOSMonitorKeyboard
320gb Seagate Sata, 200gb Maxtor Sata, 120gb IDE Windows XP SP2 Benq FP92W 19" LCD WS Logitech G15 
PowerCaseMouse
Thermaltake TP 700w Coolermaster Mystique with neons Logitech G5 
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post #2 of 4
This is generally due to the different IC chips used on the RAM. Now the same speed and timings dont mean that they will function in a Dual channel setup.

Have you tried resetting the CMOS?

Remove the little battery from the motherboard for around 2mins and then put it back in and this shall reset the BIOS and will recognise the RAM again...Try that mate.
post #3 of 4
Thread Starter 
Thanks ENTERPRISE1701

I dont actually have a problem of the computer not booting. It only does that when I try and run them as dual channel

I think this gives me a reason to buy corsair
    
CPUMotherboardGraphicsRAM
Pentium 4 3.0ghz Prescott Gigabyte 8IPE1000pro2 Powercolor x1950Pro 256mb AGP 2x1gb Kingston DDR400 
Hard DriveOSMonitorKeyboard
320gb Seagate Sata, 200gb Maxtor Sata, 120gb IDE Windows XP SP2 Benq FP92W 19" LCD WS Logitech G15 
PowerCaseMouse
Thermaltake TP 700w Coolermaster Mystique with neons Logitech G5 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Pentium 4 3.0ghz Prescott Gigabyte 8IPE1000pro2 Powercolor x1950Pro 256mb AGP 2x1gb Kingston DDR400 
Hard DriveOSMonitorKeyboard
320gb Seagate Sata, 200gb Maxtor Sata, 120gb IDE Windows XP SP2 Benq FP92W 19" LCD WS Logitech G15 
PowerCaseMouse
Thermaltake TP 700w Coolermaster Mystique with neons Logitech G5 
  hide details  
Reply
post #4 of 4
Yes when you purchase 2x 512mb or 2x1gb make sure you buy them together as a Dual channel Kit then you are more or less gaurentedd Dualchannel from the memory modules.
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