GaryR Posted November 29, 2007 Share Posted November 29, 2007 It's not listed on the "Configurator" so i'm a little worried about ordering it. Will it be a problem with my system? I'm going to populate all four banks with 2 sets of matching 1G modules. I'm running Vista 64.. Thanks! :D: Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted November 30, 2007 Corsair Employee Share Posted November 30, 2007 I think you missed it is indeed there: Configurator Link! And with 4 modules you would most likely have to run the memory at DDR333 and set the memory Voltage to 2.75 Volts. Link to comment Share on other sites More sharing options...
GaryR Posted November 30, 2007 Author Share Posted November 30, 2007 Sorry, I mixed up another brand of PC2-6400 with the Corsair memory I was looking at. I ended up buying the 2GB kit of TwinX2048-3200C2PT to go with the 2GB of CMX1024-3200C2PT already installed. That was the reason for my second post. Will those two sets live well together? Sorry for the mix up! :o: Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted November 30, 2007 Corsair Employee Share Posted November 30, 2007 Yes and the answer I gave you still applies. Link to comment Share on other sites More sharing options...
GaryR Posted November 30, 2007 Author Share Posted November 30, 2007 Great, thanks much Ram guy! I'll set it to 333mz and 2.75V (I *think* it goes from 2.6, 2.7, to 2.8 but i'll double check). Can you tell me the difference between TWINX2048-3200C2PT and CMX1024-3200C2PT? The Configurator shows both as compatible with the A8R32, same speed and timings, but they sure don't cost the same! CMX is generally about 50% more $$$. Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted November 30, 2007 Corsair Employee Share Posted November 30, 2007 TWINX2048-3200C2PT is a set of Two CMX1024-3200C2PT modules! Link to comment Share on other sites More sharing options...
GaryR Posted December 1, 2007 Author Share Posted December 1, 2007 HAHAHAHA...... figures! Thanks, I guess it should work! LOL Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted December 1, 2007 Corsair Employee Share Posted December 1, 2007 Yes and please let me know if yo have any more questions! Link to comment Share on other sites More sharing options...
GaryR Posted December 5, 2007 Author Share Posted December 5, 2007 Yes and please let me know if yo have any more questions! RAM installed and I didn't change any BIOS settings at first. Worked fine, Vista 64 immediately saw it and all was well. I then went in to BIOS and tried the manual settings I saw listed here for the A8R32-MVP and couldn't get the system to boot, kept giving me an overclock error. I never could find a setting for DDR Frequency to set at 333Mz, but I assume the setting of 166Mz (x2?) is correct. The values there went as high as 250 I believe. Anyway, went back to BIOS defaults and all is well again. I did notice my "Vista Performance" Memory score for memory went from 5.x to 4.5 after adding the 2 GB... odd. Link to comment Share on other sites More sharing options...
RJLeong65 Posted December 5, 2007 Share Posted December 5, 2007 RAM installed and I didn't change any BIOS settings at first. Worked fine, Vista 64 immediately saw it and all was well. I then went in to BIOS and tried the manual settings I saw listed here for the A8R32-MVP and couldn't get the system to boot, kept giving me an overclock error. I never could find a setting for DDR Frequency to set at 333Mz, but I assume the setting of 166Mz (x2?) is correct. The values there went as high as 250 I believe. Anyway, went back to BIOS defaults and all is well again. I did notice my "Vista Performance" Memory score for memory went from 5.x to 4.5 after adding the 2 GB... odd. This is likely because the command rate defaulted to 2T with all four slots populated. (Whereas you ran the command rate at 1T with only two slots populated.) Link to comment Share on other sites More sharing options...
GaryR Posted December 5, 2007 Author Share Posted December 5, 2007 This is likely because the command rate defaulted to 2T with all four slots populated. (Whereas you ran the command rate at 1T with only two slots populated.) Actually no, it was/is set at 1T I believe. I followed the setup put here by "Stampede89" that I found by searching under A8R32-MVP. I used these settings: Memclock Mode : Manual Memclock Value : 200MHz MCT Timing Mode: Manual Cas Latency: 2.0 Tras: 5 CLK TRP: 2 CLK TRCD: 3 CLK TRRD: 2T TRC: 7T TRFC: 12T TRWT: 1 CLK MCT Extra Timing Mode: Manual TREF: 3.9us DDR Input Strobe Skew: Disabled DDR Data Driving Strength: Disabled Burst20pt: Enabled User Config Mode: Manual Read Preamble: 5.0ns Async Latency: 6.0ns CMD-ADDR Timing Mode: 1T Bank Interleaving: Auto Burst Length: 8 Beats *Hardware Memory Mode: Enabled Description says it's Software could be a screw-up with bios 0602 DDR voltage upped to 2.80 for stability Also, HT configuration should be enabled to fastest settings. SANDRA 2007 SP1 reports 86% bandwidth efficiency at ~5500MB/s. Memtest86 reported no errors. NOTE: My memory revision is 1.1 and caution should be taken when altering these settings. My advice: Do ONE at a time to see their limits or you'll find yourself clearing the cmos when the computer won't boot up:eek: Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted December 5, 2007 Corsair Employee Share Posted December 5, 2007 Command Rate should be set to 2T with 4 modules installed. Link to comment Share on other sites More sharing options...
GaryR Posted December 5, 2007 Author Share Posted December 5, 2007 Command Rate should be set to 2T with 4 modules installed. Excellent, that works perfectly, thanks!! The Vista memory score only increased from 4.2 to 4.5 but it may be more of a motherboard bottleneck. I also have a 4GB USB stick being used as memory, wonder if that is being taken into account? Thanks again! :biggrin: Link to comment Share on other sites More sharing options...
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