fitz58 Posted September 21, 2008 Share Posted September 21, 2008 I am now running GA-EP45T-DS3R & TWIN3X2048-1333C9DHX,Timings are set at stock 9-9-9-24 with Q9450 (more detailed specs in specs list)All running very stable,average temp. across 4 cores 40*C. Can I put another set of the same memory in this board and receive the same stability ? As I have made a bad purchase of TWIN3X2048-1333C9 and found it does not work with what I have. :(: I have also asked this same question of tech. support at Gigabyte, no answer as of yet. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted September 22, 2008 Corsair Employees Share Posted September 22, 2008 Yes but with 4 modules DDR1066 would be suggested and I would set the memory Voltage to 1.8 Volts and set the NB Voltage to +.2 Volts as well. Link to comment Share on other sites More sharing options...
fitz58 Posted September 23, 2008 Author Share Posted September 23, 2008 Thank you very much for your reply ! it is now running at the voltages that you have recommended and just to clarify your answer with my question I can add another of the same set to equal 4x 1 gig of CM3X1024-1333C9DHX G. The point was NOT to have to buy 2 whole new sets , in todays economy I am sure most of us can understand this, but I am sometimes amazed at the responses from some of you company "GUYS" that are simply Throw away what you got and BUY everything new all over again! Sorry for the "Postal" outburst but as times get worse I think you might have to start getting use to them. Link to comment Share on other sites More sharing options...
Wired Posted September 23, 2008 Share Posted September 23, 2008 Limitations in memory controllers don't change because of the economy :) Link to comment Share on other sites More sharing options...
fitz58 Posted September 23, 2008 Author Share Posted September 23, 2008 That was a statement made by someone with no real help to offer. The memory controller obviously can handle the 2 sticks and will probably handle the 4 I was just hoping to get some reassurance to my theory and any other advice as to voltage or timing settings. The single 1 gig stick(CM3X1024-1333C9DHX G)is listed as compatible with Gigabytes P45 chipset boards, and so was the Q9450, yet there have been reports of issues with compatibility with some memory and the Quad cores. The question was posed as to all being put into one system with the given specs. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted September 23, 2008 Corsair Employees Share Posted September 23, 2008 WOW :eek: How did you get this: Thank you very much for your reply ! it is now running at the voltages that you have recommended and just to clarify your answer with my question I can add another of the same set to equal 4x 1 gig of CM3X1024-1333C9DHX G. The point was NOT to have to buy 2 whole new sets , in todays economy I am sure most of us can understand this, but I am sometimes amazed at the responses from some of you company "GUYS" that are simply Throw away what you got and BUY everything new all over again! Sorry for the "Postal" outburst but as times get worse I think you might have to start getting use to them. From This: Yes but with 4 modules DDR1066 would be suggested and I would set the memory Voltage to 1.8 Volts and set the NB Voltage to +.2 Volts as well. I am not sure how you got that I was suggestion buying new memory, however its not a bad thought. We would not officially support mixing memory so that would be at your own trial and error. And running 4 modules or a system that is fully loaded with memory will be hit and miss from what I have seen. Link to comment Share on other sites More sharing options...
fitz58 Posted September 23, 2008 Author Share Posted September 23, 2008 Yes but with 4 modules DDR1066 would be suggested and I would set the memory Voltage to 1.8 Volts and set the NB Voltage to +.2 Volts as well. That is how I got you wanted me to buy new . And you have totally lost me as far as your last message , at this point I'm not even sure you understand the original question? And no I don't plan on buying a lower frequency pair of modules to mix with what I have, because as we all know they have a tendency to default to the lowest speed settings(remember I have DDR 1333). Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted September 23, 2008 Corsair Employees Share Posted September 23, 2008 All of the memory would have to match but as I said if you mix two sets of modules say Twin3x2048-1333C9DHX the next speed grade down would be suggested IE running them at DDR1066. Link to comment Share on other sites More sharing options...
fitz58 Posted September 23, 2008 Author Share Posted September 23, 2008 But I am NOT! mixing 2 different sets they would be 2 sets of : 2x Twin3X2048-1333C9DHX G = 2x Two matched CM3X1024-1333C9DHX G modules = 4 x CM3X1024-1333C9DHX G. And to lower the speed down to DDR 1066 would reduce the system performance by creating a bottleneck between the command processor and the memory access processor, As the FSB of the Q9450 is by default 1333mhz. Link to comment Share on other sites More sharing options...
Wired Posted September 23, 2008 Share Posted September 23, 2008 This whole discussion comes down to the limitations of most memory controllers when under full load. They usually can't handle 4 sticks @ full speed and have to be downclocked. You can try full speed, but 2 separate pairs aren't tested that way by Corsair (if they were, they'd be in a QUAD pack), and the motherboard manufacturers don't specifically mention 4 sticks @ their top speed. Link to comment Share on other sites More sharing options...
fitz58 Posted September 23, 2008 Author Share Posted September 23, 2008 Now Thats What I Call A Very Useful Bit Of Information Given In A Very Easy to understand manner ! :laughing: Thank you very, very much ! :D: Not the greatest of news but I now see the situation I now have to deal with would I'm now wandering if maybe going to a set of DDR 1600 combined with MY DDR 1333 then dropping down to the DDR1333 would be feasible yet as was mentioned not recommended? Link to comment Share on other sites More sharing options...
DerekT Posted September 23, 2008 Share Posted September 23, 2008 I'm now wandering if maybe going to a set of DDR 1600 combined with MY DDR 1333 then dropping down to the DDR1333 would be feasible yet as was mentioned not recommended? That would be feasable. Please research this thread: http://www.houseofhelp.com/v3/showthread.php?t=64360&highlight=Unpredictable+results+QUAD2X4096+Gigabyte+X38-DS5 The issue is the memory controller and a population of all four banks at the full speed of a two bank run. This issue is across the board with both Nvidia and Intel chipset based boards. And to lower the speed down to DDR 1066 would reduce the system performance by creating a bottleneck between the command processor and the memory access processor, As the FSB of the Q9450 is by default 1333mhz. You are in error here. It is common with the method of interpreting bandwidth speeds. There is no possibility of running DRAM slower than a 1:1 ratio with Intel. 1333Mhz FSB = 333Mhz (Effective) and 1333Mhz Quad Pumped. The DRAM is 667Mhz which is a 1333Mhz Double Pumped or Double Data Rate). So, a 333Mhz FSB Processor with 667Mhz DRAM is running at a 1:2 (CPU FSB : DRAM) Ratio. Now at 1066Mhz, you have a 333:533 which is a 2:3 (CPU FSB : DRAM) Ratio. Hopefully this clarifies matters. Link to comment Share on other sites More sharing options...
fitz58 Posted September 24, 2008 Author Share Posted September 24, 2008 (To make this as short as possible) After reading all this "NEW" info this is what I plan on attempting : The purchase of a 2x1gig set of DDR3 1600 (adding to what is already in) , upping voltages , and lowering speed to DDR3 1333.? :roll: Link to comment Share on other sites More sharing options...
DerekT Posted September 24, 2008 Share Posted September 24, 2008 (To make this as short as possible) After reading all this "NEW" info this is what I plan on attempting : The purchase of a 2x1gig set of DDR3 1600 (adding to what is already in) , upping voltages , and lowering speed to DDR3 1333.? :roll: Even so, keep in mind that there is no support for 2 kits. If your motherboard memory controller balks at this population you will have to deal with the motherboard manufacturer. If testing the modules singly and in the two slot configuration brings no errors then you have issues with the motherboard. The newest chipsets are better than the older ones with regards to a four DRAM slot population but be clear, there are still boards that must be RMA'd because they will not accept the four DRAM slot population. You need to be informed of this characteristic before you purchase a second kit. You stand a good chance of having the second set work well, but there is always those that don't find a good result. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted September 24, 2008 Corsair Employees Share Posted September 24, 2008 I would suggest just replacing the memory you have now with one 4 Gig set for best performance like TWIN3X2048-1600C7DHX Link to comment Share on other sites More sharing options...
fitz58 Posted October 2, 2008 Author Share Posted October 2, 2008 Well I've finally did it I saw a deal on DHX TWIN3X2048-1333C9DHX , and yes that is correct it is yet another set of the same that I am already using in the MB ,( but the deal was for $90 and at worst I could resell it ). So with all your advice taken into account I set the voltages as follows : VDIMM= 1.8 MCH(Northbridge)=1.2 CPU Vcore = 1.26 Shut down system, unplugged it put in new memory (now all 4 banks are populated w/CM3X1024-1333C9DHX) , flawlessly booted into XP-32 SP3 , checked voltages they reported as follows : VDIMM= 1.76 MCH(Northbridge)=1.16 CPU Vcore = 1.256 I then ran Everest System stability test for 1/2 hour no problems and have been running as such for days now not a single freeze up or BSOD. And speed of ram is: Memory Speed DDR3-1333 (667 MHz). As it should be! Thank you all for your assistance !:laughing: Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 2, 2008 Corsair Employees Share Posted October 2, 2008 NP and I would try setting the MCH Voltage to 1.3 Volts if you have any problems. Link to comment Share on other sites More sharing options...
asvestomixz Posted December 31, 2008 Share Posted December 31, 2008 well i have a ga-ep45t-ds3r too.. i dont have corsair memory but my problem seems same i hope you can give help to people who dont have corsair :P About my problem.. i am unable to post with 7 x 400 cpu and 1600 fsb on memorys and even with 1333 fsb i have blue screens.. the memories are ok checked and replaced 1 time..I have tried everithing on bios i did as they told me on the ******** forum nothing works.. i hove to solve this problem at all i paid 1600 euro for this pc and never enjoy it cpu intel q9550 mobo ga-ep45t-ds3r psu 700w gtx 280 RAM ********3P1600EB4GK etc merry christmas and happy new year Link to comment Share on other sites More sharing options...
Wired Posted December 31, 2008 Share Posted December 31, 2008 well i have a ga-ep45t-ds3r too.. i dont have corsair memory but my problem seems same I have tried everithing on bios i did as they told me on the ******** forum nothing works..First, do NOT go around the filter as it's there for the reasons mentioned in the rules which you were redirected to once you made an account. Second, Corsair cannot help you troubleshoot someone else's product. I would suggest you post again on their forum, or call up their support line. Also, you'd need to OC the FSB to 1600 to run the memory @ 1600. Link to comment Share on other sites More sharing options...
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