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Asus A8N-SLI Deluxe A643200+ TwinX1-24-4000PT


Quadphile

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Alright, my system is currently stable, letting the Bios do its thing on auto.

 

The system will not run with an extra XMS 3200 Pro module in any slot, in any arrangement. It will not run with only one of the Twinx 4000 modules.

 

I'm supposed to be able to get 300+mhz off this board if I had different ram....I get...210 :[pouts: I have gone through a number of forums and know for sure that my troubles are memory subsystem based. Other modules have been known to run at 240 at 1T timing (that 1T/2T setting) I can't run 2T even at 200.

 

I am letting the SPD handle the timings, and even when I force voltages and timing the fastest I can ever run this ram is 220. If I cut the memory down to the 333 ratio, then...whoa! I can run at 2.6Ghz! With memory errors every once in a while of course!

 

I'm really not impressed with what my extra $100 got me here, there are two issues, based on one thing here.

 

If the system can only run one pair in dual channel, and not one alone, as well as it is unable to run the FSB at speeds anywhere near ratings, we have a problem. I'm taking a hit on timings in order to be able to get the FSB high enough for about 2.6Ghz, which means the FSB is at 260Mhz. There are a lot of people out there that are running ddr400 at much higher speeds than I am after.

 

Please give me some guidance as to what to do now, I feel that this board, and that model of ram just don't go together. For it to be this bad on my board AND have made it out of the factory, the board and ram are the only variables. If 1 dimm isn't stable, then there's no way I'm going to get two going with enough headroom over DDR400.

 

Cooling is not an issue, I have 5 120mm fans running full bore as my fan controller is yet to be functional. The cpu fan is a Zalman CNPS7700-CU, which ends up covering most of the first dimm. It is a Thermaltake Shark case (the one with a big hole in the side) so everythinf's running nice and happy.

 

I also notice the XMS 3200 Pro module was much hotter to the touch than the XMS 4000...even taking into account the extra size of the heat spreader, this concerns me...bigger heatsink = cooler in my world??, could the ram just be overheating itself?...Its definately not anything I'm doing LOL!

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I'm supposed to be able to get 300+mhz off this board if I had different ram....I get...210 :[pouts: I have gone through a number of forums and know for sure that my troubles are memory subsystem based. Other modules have been known to run at 240 at 1T timing (that 1T/2T setting) I can't run 2T even at 200.

 

Are you assuming your setup can do this based upon other's words, or have you actually done those speeds before?

 

If the system can only run one pair in dual channel, and not one alone, as well as it is unable to run the FSB at speeds anywhere near ratings, we have a problem. I'm taking a hit on timings in order to be able to get the FSB high enough for about 2.6Ghz, which means the FSB is at 260Mhz. There are a lot of people out there that are running ddr400 at much higher speeds than I am after.

 

Running more than one pair? What's your HTT at?

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I decided to ditch on the PC4000, so I'm now running that spare XMS Pro module, and yes, at the speeds I wanted.

 

Yes, this is no longer a dual channel setup, but running the PC4000 as 512, single channel was a non-posting situation. This XMS pro module not only posts, but it also runs at 250Mhz. I'm not going to spend much time on finding out how fast it can actually go because I decided to exchange the PC4000 for some OCZ TCCD based memory, and it would be time wasted.

 

I was mixing memory after I knew I was having problems, in the hope I might clean up the signal quality and/or force single channel mode for all three modules. Plus, the one PC4000 module was trapped under my HSF, and I wasn't wanting to remove it if there was no problem.

 

So... 1 PC4000 module won't post. 1 XMS Pro 3200 module will post at 250Mhz as well as run stable.

 

This may be something to keep in mind if others have the same trouble. There is no way to run the PC4000 memory without voiding the warranty on this board in dual channel at near rated speeds, and there is absolutly no way to run it in single channel as you can't get to the bios to up the voltage.

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Yes I know I can't claim fact, but comparing one CMX512-4000 module to one XMS Pro 3200 module, the CMX WILL NOT BOOT, all things identical between the tests. The XMS Pro WILL boot, AND at 250Mhz. Others have been getting around 300Mhz with this model of board, so what this tells me is that the CMX module pair with this board, has little to no headroom running on this board. These people may be lieing or whatever, my system may be weaker than theirs, any number of things could be different. But when the CMX module won't boot at stock, its clearly not getting along with the board<- this is my beef, overclocking performance is niether guaranteed or consistent. I never said anything was wrong with the memory module, I said it didn't get along, for all I know there's a board out there that'll run it at DDR710.

 

I had a couple other paragraphs of venting but I came to the conclusion that it really goes nowhere to just spread the grumpiness. I'll let you know how the OCZ stuff runs!

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  • Corsair Employee

First thing, you cannot Mix these modules and some MB's when changing from one module to another you may need to re-set the MB bios so it will detect it properly. Bottom line, if your MB will not post with one module but will with another, it's either a failing module or the MB bios needs to be reset. And that is up to you and your ability to figure out.

As far as comparing another makers memory to our you are welcome to do as you wish, but not on our forum that is not what we are here for. Our purpose is to provide support for users who may need help is configuring their system or trouble shooting a problem!

Pandering other manufacturers is an insult to myself and the company I work for and will not be allowed according to our Forum Rules.

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Since this ram is all brand new (less than 1 week, including my spare XMS Module) we're left with a "failing module". The motherboard bios had been reset, so that wasn't the problem. The modules are being RMA'd, and I'm sending them off today.

 

Thankyou for your help, as opposed to insulting me (ahem). I can see why you wouldn't want to have me post something as I had suggested.

 

If you keep track of customer experience with technical support, Ramguy was very positive, however my experience with Wired makes me want to go whack him upside the head. Thankyou for your prompt replies.

 

So problem solved, it's really hard to express 100% of the troubleshooting steps taken, I'm pretty sure I can specify how things went sour here. If there had been something questionable in what I had posted it should have been brought up, as opposed to that post Wired had. When I had paid more for your product, I was wanting to get more out of it, and with those CMX modules, it was baseline/flakey.

 

I would imagine a lot of people coming through these forums desearve a response as Wired had said, I often get treated this way, but it makes me very grumpy, I'm not an average joe with air between the ears.

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