RAM issues

[Mosg2]

No hardware changes at all and out of the blue Windows is only recognizing 8g of my 16g of RAM. When I run CPU-Z it shows 16g. I checked each stick individually and they are all healthy. Anyone have suggestions?

Also, post patch 5.0.4 running 10x WoW is maxing out my CPU something fierce. In game I changed it from DX11 to DX9 and that helped a little but not anywhere near where it was 3 months ago when I took a hiatus. Is there some miracle I missed after one of the earlier patches?

Thanks in advance!

[remanz]

Not sure about the 16GB becoming 8GB issue. you use Windows 7 Ultimate right ? and what MB you are using ?

5.0.4 framerate slow down is most likely add-on related (at least for me). Try disable all addons, including jamba, only leaves ISBOXer addon and see if that helps. 5.0.4 needs the new jamba (beta 3 i believe).

edit: found a forum link on tomshardware talking about this problem. No definitive answers, but there are a couple suggestions in there might be worth trying, one is changing msconfig, the other is remount CPU fan (????) http://www.tomshardware.com/forum/265341-30-windows

[Mosg2]

I've been playing around with it for 3 hours. CPU-Z shows 4 sticks of 4 gigs installed, all 4 DIMM slots fine but the resource monitor shows only 8 gigs installed. I rearranged the RAM multiple times, checked each stick manually etc etc etc. No dice. I checked the msconfig setting, no dice. My BIOS has no setting for allotting RAM to the video card.

[remanz]

Might have sth to do with the frequency

Are you overclocking ?

here is another person's saying

GUYS I REPORTED THIS TO ASUS. THE PROBLEM IS WITH THE FREQUESNCY.
IF I SET THE RAM TO 1333MHZ IT SHOWS 12GB, AND IF SET TO 1600MHZ IT SHOWS ONLY 8GB. ANYHOW CPUZ SHOWS 12 EVERYTIME. IT BETTER TO GO WITH UPGRADING THE BIOS AND THEN SETTING THE SETTINGS PROVIDED BY ASUS SUPPORT TEAM.

can also try upgrade your MB's BIOS.

[Mosg2]

Yeah I read through all that. I upgraded the BIOS. The stuff I have is 1600. Maybe I'll manually set it to 1333 in BIOS and see if that changes anything.

[Mosg2]

Interesting, the timings I'm supposed to use as per the manufacturer for the RAM are 9/9/9/27 but CPU-Z and BIOS show that they're at 9/9/9/24. It won't let me manually change it in BIOS though. Possibly related?

[Mosg2]

Manually got it set to 9/9/9/27 but when I change it to 1600 it won't POST.

[jstanthr]

Manually got it set to 9/9/9/27 but when I change it to 1600 it won't POST.

leave it at 9 9 9 24, thats a better setting technically, but you'll never see the difference, also check to make sure that the voltage defaulted correctly, with ddr3 there are different voltages, for the most part all of ddr2 was the same (1.65 i think) but i have seen ddr3 go from 1.1 to 1.65 if your board picks up the XMS profile of your memory use that, if not, just let it default to w/e as long as the voltage is correct (lower is ok, higher isn't unless your o/c'ing your ram, and on sandy bridge you don't wanna do that, it can cause some major stability issues)

[jstanthr]

I experienced a huge performance hit as well, disabling addons and resetting gfx settings did help, but there is definately something different, the spell effects don't look the same with the same settings as before. and there is no way i should be having system lag of any kind, but i am, it did get better after the small update blizz done the other day, but it still isn't as good as it was before IMO. I'm still working on finding out what is different and how it is affecting my performance, as soon as i have something solid, i'll share it. thats jst my 2 cents on the subject, lol

[Ughmahedhurtz]

Does your RAM show up on the compat list for your motherboard? Worth a look at any rate.

Generally speaking, that typically indicates 4 primary failures (assuming you're using the spec settings from the manufacturer): 1) bad RAM itself, 2) bad DIMM slots on the motherboard, 3) motherboard is out of spec (due to bad components/firmware or you got one that sampled on the outer fringe of "good"), or 4) bad power supply. If you set your RAM settings to 1600 with just two sticks, will it post? How bout two sticks in the other pair of slots?

[edit] Another possibility is you overloaded one of your PSU rails, such as putting too many HDDs/SDDs on the same connector rail.