EVGA GTX 750 Ti upgrade question

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DOS Chuck

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Oct 22, 2014
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I have an ASUS M5A99X EVO R2.0 with 32GB of Corsair RAM. I just today upgraded from an EVGA GTX 550 Ti to a 750 Ti. After rebooting, during the POST boot screen, it now shows I have 24GB of RAM. Once into Windows 7 Pro x64, CPU-Z, AIDA64, AMD Overdrive (and a couple of others) show I still have 32GB of RAM. Windows System and GeForce Experience v.2.1.30 both show I have 32GB with 24GB available. I changed nothing in the BIOS. Does this 750 share RAM off of my mobo? The 550 certainly didn't.
Any ideas? Suggestions?
Thanks.
 
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clutchc

clutchc

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Apr 22, 2009
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All cards require that the system set aside a certain size screen buffer from system memory. But I've never heard of any using 8GB! I would suspect a software error rather than actually losing that much memory. Enter BIOS and see if you can see what it shows for system memory.
 
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DOS Chuck

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Oct 22, 2014
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In BIOS, it still shows I have 4 8GB slots but during boot, after POST, it shows 24GB. It was fine yesterday and this morning before I installed the new 750 Ti. There's nothing in the BIOS to select any memory for the graphics card. I've emailed EVGA support about this but haven't heard anything yet. The only time I've ever had to deal with this was an older ASUS board that DID have on-board graphics. I could select 3 different memory settings (I think) as "shared" graphics RAM. I never used it since I had a PCIe card. This is weird.

update: DOH! I must have bumped a memory stick, slightly dislodging it. Reseated all of the RAM and all is well.
 
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