put it in and see what happens

there shouldnt be any differences excep maybe the timings. if so just go into bios and chane them so they are the same.

Just wanted to know if any peeps on here have had any experience with mixing different ram on the same mobo.

In general you can't predict the outcome. Anyone (who is not the manufacturer) telling you otherwise doesn't know what they're talking about.

The 3 most common outcomes are:

1. Lucky: the mixture will result in no problems whatsoever and 100% stability.
2. Less lucky: you'll pick up errors during Memtest and know the mixture won't work.
3. Unlucky: Memtest will say it's OK but you'll run into completely random blue screens. I've had this problem many times!

Best thing to do in my opinion, short of not mixing, is to ensure you bump up the DDR voltage in the BIOS settings if you're using 4 sticks (due to extra power draw on that rail). I think I have mine set to 1.6-1.65V, when they're rated at 1.5V. Adds extra stability without causing any dramas.

Won't guarantee anything. If you're worried about stability, then as I hinted just get a 2x8GB kit and be done with it. Cost me $109 for a ripjaws kit and checking just now they're still at that price.

What on Earth do you need 16GB of RAM for? Maybe in five years.

I'm moving up to 32GB on my next rig. Sick of the machine locking up and not accepting user input when it's used up its 16GB.

last edited by parabol at 19:58:11 19/Jul/12

Thanks for the replys guys!

tried memtest and it says its ok...

checked the BIOS and found the following differences

Ripjaw X
tRC 40
tRFC 130
tFAW 50
tCWL 9

Ripjaw
tRC 33
tRFC 128
tFAW 24
tCWL 7

I'll prolly return them and go the 2x8gig

Thanks guys!

Sharkuul, what OS you running?

I make a rule of NEVER mixing ram. Cant be fucked getting stressed over all the blue screens.

Yeah I try not to mix, I was feeling the pinch of 4gb but couldn't find a matching set so new mainboard/cpu/ram, fuck it I'll get a new vid card while I'm there, oh need a new psu, ahh my mouse is a little shit now, better get a new case and a hdd while I'm there.

jesus christ at some of the ram you guys have. i only have 6gb :/

i really should get more.

12GB (6x2GB)

I've got to say, I've never been more nervous with a ram kit as when I put six sticks like that in, despite all being matched. How in the hell are they all meant to get along? But they did ...

Heh, I just did a RAM upgrade tonight for the same reason, now got 132Gb to play with but that's across two boxes and set up for vmotion. Also, work rigs, not mine.

Nah is mine not works xen server instead of vmware

last edited by HerbalLizard at 06:48:34 20/Jul/12

i have 4g of ram in my machine, because i use my machine efficiently, unlike a lot of you guys from teh sounds of it.

Hyper 212 EVO here on a 2500K. So cheap.

Got 4.5GHz stable (that's 4.5GHz at ALL times even with ALL cores at full load, not the cheating "4.5GHz at single core load, clocked-back to 4.2GHz on 4 cores and idle at 1.6GHz" that people go for). Even when sitting on full load at 4.5GHz for hours on end, the heatsink is mostly cool to the touch even with the fan on a low setting.

If you need any help with OC settings for stability let me know.

last edited by parabol at 19:35:24 20/Jul/12

Just thought I'd post an update ...

I ended up getting my mates old corsair H80 water cooler for my CPU. hes got a new case and is upgrading to a H100.

My system specs:
i7 2600k
Asus P67 Sabertooth mobo
Asus Direct CUII GeForce GTX 570
2x8gb G.Skill 1600mhz SDRAM
Corsair Pro 750w PSU
Antec Darkfleet 30 case
WD 1tb hd

Ive used very basic OC tools in the BIOS and have managed to get a stable 4.3Ghz on my i7 2600k. after 6 hours of prime 95 i get cpu temps of 59-60degrees.

after 4 hours of Battlefield 3 on max settings the cpu temps are 38-40 degrees.

BCLK 102.1
CPU voltage 1.220
DDR voltage 1.5
CPU multiplier x43

everything else is on auto.

tried 4.5ghz but it starts creepig up to 65degrees. thought 4.3ghz is enough.

I have 16 gig of ram and I use every damn bit of it running multiple instances of stuff, while playing a game, while encoding videos of my cat. Comes in handy.

Link to youtube channel please.

does it have an onboard video card not in use?