Failed RAM upgrade from 2x4 to 4x4

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Hehacz

Hehacz

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Jan 28, 2016
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4,510
Hi. I bought additional ram to my PC, matching the old blue Corsair Vengeance 8GB DDR3. The result is 16GB (4x4) of memory... with constant crashes and BSOD. I've read tons of guides and threads, checked ram manually running in 1-3 / 2-4 slots w and w/o old one plus ran some tests in system and it's perfectly fine. Still blue screens appear and strange things happen. Microsoft forum states it's power related but my chieftec A80 is fine so it must be a problem in Bios settings. I don't belive ram doesn't match cause it has the same density, speed at 1600mhz, serial code, only 3yrs younger (with slightly changes in numbers between 'jedec #1 and #2 and newer xmp which you can check in cpuz). My motherboard is Msi Z68A-G45 G3 with newest supported 'uefi bios' and sth like OCgenie. I turned OC mode on as it should give more power to ram (I think there are no other options to change this values) but still errors appear. What should I do? Returning ram as broken and investing in 2x8 module doesn't seem fine...
 
Solution
Tradesman1
Can try raising DRAM voltage - start with the original set, enable XMP then raise the DRAM voltage + 0.06. Then try adding the second set. If no no joy, try raising the the MC voltage about the same amouunt - think it's either VCCIO or DDRVTT on your mobo
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Hehacz

Hehacz

Reputable
Jan 28, 2016
11
0
4,510
My CPU is i5 3570k and it's not OCed (with simple Intel's fan from the box I preferred not to do it). So in bios I have normal settings enabled, neighter OC nor Eco. Both sets of DRAM are blue Corsair Vengeance 8GB Dual Channel DDR3 1600MHz (CMZ8GX3M2A1600C9B).
Thank you for the link, I was told I should buy 8GB back in past and buy another 8GB if there was a need for it. Now I see it's not so simple
 
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Tradesman1

Tradesman1

Legenda in Aeternum
Jun 5, 2013
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Can try raising DRAM voltage - start with the original set, enable XMP then raise the DRAM voltage + 0.06. Then try adding the second set. If no no joy, try raising the the MC voltage about the same amouunt - think it's either VCCIO or DDRVTT on your mobo
 
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Solution
Hehacz

Hehacz

Reputable
Jan 28, 2016
11
0
4,510
Ok. I am able to change DRAM voltage by steps not precisely by writing numbers but the first voltage after 1.5 is about .06 more so that will do. Funny thing is that I had to press hotkey "+" cause LPM doesn't open a list of available voltages. I enabled XMP, raised voltage and put back second RAM set. Then opened bios again asked by a screen telling me that memory has changed and saw that XMP is off and RAM runs at 1333. I enabled it so mobo can recognize it's 1600 and capped it at 1600 instead of auto option just to be sure. Now I'm waiting for any crashes. I know that for me opening Nvidia control panel with both sets of RAM would end in BSOD. Now it's the app that crashes, not computer lol. Gonna write if it helped and tell exactly the fixed voltage (and obviously pick the best solution).
 
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Hehacz

Hehacz

Reputable
Jan 28, 2016
11
0
4,510
So I think this might be a solution because now I rarely get a BSOD. But it still happens so the case isn't closed. I raised a small amount of V twice and now I consider doing it again.
 
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