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>> Thanks for the suggestion. They are 4 matching 1GB sticks from Crucial. |
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>> It's worked perfectly today with any 2 of them - just not when I fit all 4. |
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>> |
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>> It didn't work *at all* when I first put in 4GB, I had to recompile the |
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>> kernel with IOMMU options - now it works, just not under "load". |
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>> |
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> |
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> I ran into a similar issue when it went from 512M -> 1G. Same brand |
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> RAM, speeds, etc. I was slightly overclocking at the time and I ended |
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> up fixing things by going back to spec'd speeds. Make sure you're not |
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> pushing the envelope - no guarantees when you do that and sometimes a |
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> hardware change can keep that from working like it used to. |
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> |
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> Sounds like a motherboard issue of some kind - maybe some kind of timing |
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> setting will fix it. Don't ask me what half of those settings do, though... |
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When I went from 2x 512mb to 2x 512 + 2x1gb, my MSI motherboard |
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automatically went to DDR333 speed instead of DDR400, as specified in its |
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manual. Dual-channel is still active. |
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