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Asus A8N-E Motherboard Memory Slot Problem (Please Help)

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Last response: in Memory
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May 1, 2006 10:31:52 AM

Hi I'm not a tech person, so I have a query:

My PC has been working fine for 4 months. But then suddenly it wouldn't start up, it will not even go to post, black screen and a long beep then 3 secs then another long beep, endlessly looping. I thought it must be the memory.

I have 2 x 512MB PC3200 400mhz in the blue slots & 2 x 512MB PC3200 400mhz in the black slots, all slots are full making a total of 2GB all the same make & speed etc... identical.

I took out the memory from A2 & B2 slots and it works fine, boots up perfectly with 1024MB. If I move the 2 sticks to A2 & B2 slots then it will not boot up at all, same beeps.

If I move the DRAM Sticks to the A1 & B1 slots, fine again. If I leave those in there and add a third stick to the A2 slot: it boots up but only recognises 512MB DRAM installed.

If I take that out and move it to slot B2 the PC won't start, same beeping.

So should I conclude that the B2 slot farthest from the CPU is faulty & fails to register the DRAM?

I don't think it's the actual DDR as any combination in slots A1 & B1 work fine.

I also tested each individual DRAM chip in Slot B1 (says in user manual, if using 1 DRAM Module insert in B1) PC started perfectly with each 512MB Memory chip and I then used Check It Daignostics to run all usual Memory Tests, all Passed, & thus obviously rules out memory problems, must be MB, right?

So has the motherboard failed? Should I return it to the vendor?

(posted under motherboards too)
May 8, 2006 6:22:08 PM

I have the same motherboard and had some issues with memory in the past on it. Did you adjust the timings in the memory or leave them on auto? If you are overclocking or setting the timings or voltages manually then that could be an issue.
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