Overclockers DDR Ram Recommendation for A8R-MVP/4200+

[EvertonB]

Hi

I've just finished building my PC and I'm almost happy. I tried to save some cash on the RAM by buying some value Crucial ram and I've learnt the hard way as I have to run it at around 173Mhz to get it to work at HTT 260.

The rest of my spec is good so I've decided to upgrade the ram as it was a bad idea trying to save cash.

My spec is in my sig - what ram would you recommend? Ideally I would like something I can clock up to 260-280Mhz if it it exists and doesn't cost more than £150-200 for 2x1GB.

From reading other forums, my A8R-MVP seems to have problems with clocking ram over 250Mhz but I'm going to replace it as soon as a better crossfire board comes out (got my eye on the abit at8) or hopefully asus will fix the problem in a bios update.

Or, am I using the wrong latency timings on my ram? At the moment I'm running 3-4-4-8 2T. I'm pretty green at this overclocking lark so it could be me.

 

[stevty2889]

Shouldn't have to run at 2T, thats going to give a 3-5% performance loss in many cases. Running a divider doesn't have a huge impact on performance, so getting the more expensive ram isn't going to give you any huge performance gain, and neither is running the ram at 250mhz or more, since X2's are not bandwidth starved. My 4200+ is at 2.618ghz(238x11), 1.475vcore, memory is running at 187mhz, as it won't stay stable at 200mhz while I'm overclocked.

 

[EvertonB]

Originally posted by: stevty2889
Shouldn't have to run at 2T, thats going to give a 3-5% performance loss in many cases.

3-5% loss on ram performance or on total performance? The A8R-MVP has problems with 1T and I've virtually given up trying to get it to work.

Originally posted by: stevty2889
My 4200+ is at 2.618ghz(238x11), 1.475vcore, memory is running at 187mhz, as it won't stay stable at 200mhz while I'm overclocked.

Hmm, maybe I'm not alone then. I'll wait to see what other people recommend before I decide to keep/sell the ram

 

[TSS]

as far as i've read, value ram has a real problem with overclocking alot. in your sig it says @222, which is alot since i usually see things like 215 max.

try a lower divider and tighter timings. anything between 175-200 mhz doesnt matter that much as long as you keep the timings tight. AMD's much rather have low latency than extra bandwidth. especially if its only 22 mhz. with those loose timings your more then likely getting a much higher performance hit @ 222 then you would at tighter timings @ 175.

 

[EvertonB]

Sorry sig was out of date - was before I discovered instability