Mobo won't accept more than 4GB RAM

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lordmata

lordmata

Reputable
Mar 20, 2015
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Hello,
I've recently decided to upgrade my PC with 4 more gigs of RAM and came across an error:

My mobo is P5P41D. On varius sites it says it should accept 8 GB of RAM max.
I have 2 Apacer, 1 Nanya and 1 TakeMS. All DDR2 2GB PC2-6400 (800 MHz) and 1.8V.
I have tried each stick separately and in the pair of two and the PC boots up (also I have experimented by putting different sticks in different DIMMs and only A1-A2 and B1-B2 combinations fail). However, if I try to put 3 or 4 sticks it beeps (long-short-short looping beeps).

I have flashed the latest bios, and I have tempered a little with the bios settings but with no success. What could I do to force my mobo to run more than 2 sticks of RAM?

If you need additional info I will provide as much as I can.

Thanks for your time.

Update: Found this in my mobo manual under memory configuration.

7uUv6Qq.jpg

By single-sided (ss) does it mean having chips on one side of the stick only? If so, mine are all double-sided.
 
Solution
J
Memory voltage. SPD? You can try it either way and see what happens. Enabling the SPD means the board reads the memory and sets the speed by memory stick presets, but in the case of all the different memory chips you have, this could be whats causing the board to not boot. It might help by disabling it, but as I said in my last post, sometimes different brands of memory simply wont work together, no matter what you do.
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J

jitpublisher

Splendid
May 16, 2006
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You can try upping the voltage slightly, like 1.9 or 2 volts and see if that will help. It was common on these old boards to need a little voltage bump to get more than 2 sticks to work. Beyond that, mixing memory types and brands is a no-no. You are lucky to get 2 different brands to work together, and you are trying to mix 3 different brands. Sometimes different brands just don't play well together.
 
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lordmata

lordmata

Reputable
Mar 20, 2015
3
0
4,510


Memory Voltage, NB Voltage or SB 1.5V Voltage? I have these 3 in my JumperFree Configuration section of BIOS.

(By playing around with Memory Voltage I just managed to get rid of the beeps at 2.35500V, but my BIOS doesn't boot up - which I suppose is worse)

P.S. Should my Memory Remap Feature be disabled or enabled? Same for "Configure DRAM Timing by SPD" - enabled or disabled?
 
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J

jitpublisher

Splendid
May 16, 2006
8,747
2
31,960
Memory voltage. SPD? You can try it either way and see what happens. Enabling the SPD means the board reads the memory and sets the speed by memory stick presets, but in the case of all the different memory chips you have, this could be whats causing the board to not boot. It might help by disabling it, but as I said in my last post, sometimes different brands of memory simply wont work together, no matter what you do.
 
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