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Win 7 Pro won't boot after RAM upgrade, common fixes not working
Hi All,
First post, and my apologies as this is surely a common topic, although my searches here came up empty.
I have a Toshiba Satellite A505-S6020 running Win 7 Pro which has 2X2Gb RAM sticks, which I tried to update to 2x4Gb. I purchased the RAM off the Toshiba website, which matches it to this specific model.
When putting in the new RAM, Windows refuses to boot, I get the recovery screen. It won't load into safe mode, or any other mode.
When I switch back to the old RAM, it boots as usual. I can go into system configuration, and click the max memory box in the advanced boot tab, set it to 8192 bytes, and it will then boot with the 2x4Gb sticks.
Unfortunately, Windows will only use 3Gb of the 8Gb installed in this configuration. The BIOS shows 8192 bytes of RAM, Windows shows 8 Gb installed, but only 2.97Gb usable. ~5100 bytes are hardware reserved.
If I uncheck the Max memory box and restart, windows again will not boot. I have to swap RAM again to get it running.
My Bios version is 1.40, the latest Toshiba says is available for this machine. It does not have any provision for memory remapping that I can find.
Any ideas?