m4400 - upgrade to 1066mhz ram?

I've got 8gb of the 800mhz dell factory ram installed on my m4400.
It works well and scores me a 6.4 on Windows 7 WEI.

I was wondering if anyone has upgraded to 1066mhz ram - or if the m4400 will even accept it. Then lastly if there will be any increase in speed by using the faster clocked memory.

I see some people here on the board using the 800mhz ram and they are getting into the 7's on WEI .. how is that?

Thanks.

 

Looks like you have DDR2 ram. It's almost impossible to find 1066mhz DDR2 ram. I have only ever seen one guy with it.

If you find them, they are just highly binned 800mhz sticks.

Here is the good part, if your chipset supports 1066mhz ram, you could just use thaiphoon burner to flash your SPD to 1066mhz (make sure you increase the timings). I can help with that.

 

I would replace my current ram with PC-8500 -- looks like it's about 375.00 for 8gb (2x 4gb) sticks from newegg. That would be DDR3 not DDR2 memory.

 

The chipset doesn't officially support past DDR2-800 (it won't take DDR3), unless you're overclocking. And even if you did change the speed, it would make no difference in real life performance. I suggest you disregard WEI as it isn't a great tool for comparison.

 

The performance difference between DDR2-800 and DDR-1066 on the Intel GM45 chipset is negligible. The chipset is the bottleneck (and I would assume that the PM45 is no better in this respect). I have just measured my E6400 (4GB DDR-800) and E4300 (4GB DDR3-1066) using SiSoftware Sandra. The latter won, by 5.53GB/s vs 5.44GB/s (ie less than 2% faster) and that victory may be due to having fewer other programs running on the E4300.

John

 

DDR3 simply won't fit, nothing more to it.

 

You are indeed correct LPTP-LVR, ddr3 & ddr2 are physically the same size but the little cut out notch is slightly moved over. So DDR3 will definately not work in a m4400.

 

Also DDR3 has an extra 4 pins. 204 vs 200.

 

What is the best, most compatible, memory upgrade for the M4400 system? I have the 2 sticks of the 1 GB Hynix in it now (factory) and I want to upgrade to 2 - 2 GB sticks for a total of 4 GB. I'm running Windows 7 Ultimate 64-bit and AutoCAD 2010 64-bit and need the extra memory and just want to get the best buy while I'm doing it. Thanks!

 

Any DDR2-800 SO-DIMM will do.