Personal computing discussed
Moderators: renee, SpotTheCat, Nemesis
brsett wrote:I have experimented with the voltage already. And I'm running 1600 memory at 1066 already. The memory is not on the boards officially supported list. But I don't see why that should matter all that much . . . maybe that is the issue though -- I can't change that now.
TheEmrys wrote:brsett wrote:I have experimented with the voltage already. And I'm running 1600 memory at 1066 already. The memory is not on the boards officially supported list. But I don't see why that should matter all that much . . . maybe that is the issue though -- I can't change that now.
It matters. Try an approved memory type and see if that fixes it. Only 1 stick to try and run memtest will give you a good indicator.
pixel_junkie wrote:I think you need to find out which stick(s) of RAM is/are causing you grief. Go through classic hardware problem solving. Remove all but 1 stick of RAM and run a mem-test and in all likelihood you'll find one or two that may have an issue. You may also want to consider testing them in pairs to verify dual channel operation. Give that a go and see if that turn up any errors. Since 4GB are "disappearing" on you once the system comes up to operating temperature it's likely you'll find the same error when just running whatever sticks are bad (assuming this is the case). I'd have to agree with StuG that just laying a fan over the modules should be sufficient to test the heat dissipation theory. If that yields any results you may want to look into Corsair Dominator coolers and if those are a viable option for your RAM modules.
Krogoth wrote:Don't rule out the motherboard as a possibility.
Motherboards typically have problems when you trying to drive all its DIMM slots at once. You may have to relax timings to obtain stability and/or increase voltage by a little bit.
brsett wrote:Krogoth wrote:Don't rule out the motherboard as a possibility.
Motherboards typically have problems when you trying to drive all its DIMM slots at once. You may have to relax timings to obtain stability and/or increase voltage by a little bit.
Okay, this has been suggested twice now. Specifically, what timing do you suggest I relax. I'm running at: 8-8-8-24 with command at 2t.
I futzed with the voltage a good bit. Well over the 1.65volts advertised (and accompanying qpi changes). If its heat, voltage will exacerbate the issue. I would love for it to be just a timing issue, but remember, when hot, only 8GB are made available to the OS (even though all 12GB are detected).
Edit: For the record, this is Corsair XMS3 pro memory supporting 1600. It is what is suggested by TR. I regret using it. I have already tested out one obviously bad stick and sent that back. Also, I haven't ruled the motherboard out, but I don't want to change that out very much at all, as I have work I need to do on the system, and can do with 8GB of RAM even if 12GB would be better.
Jd007 wrote:RAM sticks almost never have heat issues, unless extremely closely packed in an enclosed space without air flow or ventilation while being greatly over-volted (which is pretty much a hypothetical scenario). All the extra RAM cooling products are marketing gimmicks trying to get more money from consumers. I once saw an infrared camera shot of an OC'd computer, and the area where the RAM sticks are is by far one of the coolest spots out of the entire setup.
It's probably a motherboard compatibility issue or bad stick problem. Try every one of the 6 sticks one at a time to rule out bad stick(s), also try motherboard manufacturer approved RAM to see if the problem persists. Make sure you have the timings and voltages set as per RAM specification.
Flying Fox wrote:If you really want to prove us right, then just open the case up, grab a big fan and just blow the fan into the case.