I don't get any OOM's with 4Gb RAM in a 64bit OS and a shed load of add-ons installed and running etc. I want 12Gb to create a RAM disk and put all the textures on the RAM disk so that they load quicker. It bugs me how the textures on AI aircraft take up to 1.5/2 seconds to load if you haven't looked in a certain direction in the last 10 seconds or so, I'm hoping the RAM disk will stop this.Nice to hear you have managed 4Ghz with 12Gb too, I hope I have no problems when I get around to it.

Well, I was really desperate with OOMs and make all changes I found in the net, 12Gbs was my last atempt, I bough the +6gbs on a easy-return shop just in case, but they did the trick !!! :( My FSX and OS disk are on a pair of 150Gbs WD1500HLFS Velociraptors on P6T

I already have FSX and the OS and swap disk on SSD and its a very fast one too and it makes no difference to the loading of textures on AI traffic, hence me going down the RAM disk route in the future, I'm not that optimistic it will help but 12Gb will still come in very useful anyway.

Well,I just had 12GB on my system and no improvements regarding 6GB. I did several tests. Actually 6GB is better because you do not populate all the DIMMS reducing the workload on the MOBO and Processor.FSX is now an out of date software so it can not handle a lot of memory.Save your money to buy faster hardwares. It does makes difference on FSX.Anyway... I sold my extra 6 gig ram.Bruno F Guimar

I already have FSX and the OS and swap disk on SSD and its a very fast one too and it makes no difference to the loading of textures on AI traffic, hence me going down the RAM disk route in the future, I'm not that optimistic it will help but 12Gb will still come in very useful anyway.

Would choosing the GA-EX58A UD7 over the UD 5 motherboard ensure better overclocking of the 975 CPU? And/or the 12 GB RAM? Dunno if it is worth the extra 85 pounds. Also is 700w PSU enough? or should I spend 75 pounds more on a whopping 1000w PSU?This is all very complex this PC ugrade business of mine :( Boaz.

6GB is still a huge improvement over 2GB.Sounds like the exception that proves the rule. The vast majority of people that overclock systems with all DIMM slots populated often fail to hit their clockspeed targets, and would achieve even higher clocks with half the RAM. Plenty of i7 users on these forums at well over 4GHz with 6GB, none with 12GB, AFAIK.

Cough...Sorry I agree except that it has a lot to do with tuning as well, I had all dims full in my old AMD940 (8 gigs) and ran it at 4Ghz, This rig is running all dims full at 4.4 ghz 12 gigs 1600 7-7-7-20, but your right it is harder because of the IMC.

I certainly didn't say it was impossible, just hard, and very uncommon. Let's be honest with ourselves, anyone that needs to ask advice on what hardware to buy and then how to o/c it probably isn't going to reach that goal either.

I certainly didn't say it was impossible, just hard, and very uncommon. Let's be honest with ourselves, anyone that needs to ask advice on what hardware to buy and then how to o/c it probably isn't going to reach that goal either.

You said: "Plenty of i7 users on these forums at well over 4GHz with 6GB, none with 12GB, AFAIK."I am a I7 User and overclocking well over 4ghz at 4.48 with 12 gb of fast ram (now at 7-8-7-20 @ 1700)The last box I built for FSX was AMD duel ch with all dims full at 8 gb, overclocked a 940 to 4.02You can walk anyone thru it as long as they have the right hardware.I went to 12 because I proccess and fly some very very large photoreal scenery packages (13 cm rez), start flying while running this stuff at high settings like LOD_RADIUS=6.500000 add a nice PMG or CS model and tons of 3d add highrez meshes and you can indeed use up 6 gb and start swapping. Keep in mind if you use a GPU or two with 1 to 2 gb of Vram, the address space is reserved, so with 6 gb you can be down to 3 or more if you run a duel GPU, 4 if a decent single etc. For most users 12 gb is overkill I agree, but there are exceptions.

AFAIK means as far as I know. I'm glad you've had success overclocking with all DIMM slots populated, the vast majority of people don't though, and that was my point.

I had no problem at all getting 12Gb of RAM working at 1600Mhz 8,8,8,24 with my new i7 920 @4Ghz, temps top out at 72C with the Noctua NH-D14, lets just say I'm a happy bunny :)I've not bothered making a RAM disk yet like mentioned earlier in the thread, that will have to wait a little longer yet.

I've not bothered making a RAM disk yet like mentioned earlier in the thread, that will have to wait a little longer yet.

Peter Dowson made the following comment about ramdisks over on the mycockpit.org forums recently:"But in the end it is either almost impossible to select which files to put there (it accessing so many all the time), or re-direct FSX to get them there (effectively a different disk), that I gave up. I tried with many of the SimObject sections placed there, but there was no benefit at all that I could measure."If Peter is giving up, I don't think I am going to start :( --Bryn