okeee Posted July 12, 2009 Share Posted July 12, 2009 RAM: Corsair XMS2 - Memory - 4 GB ( 2 x 2 GB ) - DIMM 240- pins - DDR2 - 1066 MHz / PC2-8500 - CL5 - 2.1 V Are they compatible? Do I need to change any settings in bios for RAM compatibility? Link to comment Share on other sites More sharing options...
Synthohol Posted July 12, 2009 Share Posted July 12, 2009 check the exact model # and see if they are on this page, http://www.corsair.com/configurator/product_results.aspx?id=589503 if link wont work try http://www.corsair.com/configurator/default.aspx Link to comment Share on other sites More sharing options...
okeee Posted July 12, 2009 Author Share Posted July 12, 2009 Should I look for Part Number or Memory Type? Because I can find a similar memory type: "DDR2-1066 (XMS2-8500C5*4GB*SLI)" (no idea what sli is..) but the corresponding part number is different: "TWIN2X4096-8500C5" The RAM I selected was XMS2, not Twin2x. Link to comment Share on other sites More sharing options...
Synthohol Posted July 12, 2009 Share Posted July 12, 2009 SLI=Scalable Link Interface, its kinda like Raid0 for ram. kinda scroll down it looks like its on the list so it should be good to go :): Link to comment Share on other sites More sharing options...
okeee Posted July 12, 2009 Author Share Posted July 12, 2009 Yes I saw these in the list, but are "DDR2-1066 (XMS2-8500C5*4GB*SLI)" and "TWIN2X4096-8500C5" the same or not? Because I checked at the list of a shop and they were listed seperately, but here they seem to be listed as 1 memory? Also, I selected: "Corsair XMS2 - Memory - 4 GB ( 2 x 2 GB ) - DIMM 240- pins - DDR2 - 1066 MHz / PC2-8500 - CL5 - 2.1 V" So no SLI.. does that matter? Link to comment Share on other sites More sharing options...
Synthohol Posted July 12, 2009 Share Posted July 12, 2009 IIRC the SLI feature is just an extra chip on the stick but the same ICs. you should be fine. just make sure you manually key in the timings and voltage in the BIOS :): Link to comment Share on other sites More sharing options...
Wired Posted July 12, 2009 Share Posted July 12, 2009 The part # of your memory will be on the memory label itself: How To Read the Memory Label Link to comment Share on other sites More sharing options...
okeee Posted July 13, 2009 Author Share Posted July 13, 2009 Ok, so what timing and what voltage values do I need to change in bios? Link to comment Share on other sites More sharing options...
Synthohol Posted July 13, 2009 Share Posted July 13, 2009 they are written on the RAM. Link to comment Share on other sites More sharing options...
okeee Posted July 13, 2009 Author Share Posted July 13, 2009 Is there a difference between "DDR2-1066 (XMS2-8500C5*4GB*SLI)" and "TWIN2X4096-8500C5" ? Link to comment Share on other sites More sharing options...
Wired Posted July 13, 2009 Share Posted July 13, 2009 TWIN2X4096-8500C5 is the actual part number. BTW, TWIN2X and XMS2 are the same thing. XMS2 is the general series, and TWIN2X is a pre-tested pair of XMS2 memory. Link to comment Share on other sites More sharing options...
okeee Posted July 13, 2009 Author Share Posted July 13, 2009 Ok, the weird thing is this shop sold "Corsair 2GB DDR2 SDRAM PC6400 CL5.0 XMS2" as well as "Corsair 2x1GB DDR2 SDRAM PC6400 CL5.0 TwinX", as seperate memory. IIRC the SLI feature is just an extra chip on the stick but the same ICs. you should be fine. just make sure you manually key in the timings and voltage in the BIOS :): What is the timing exactly, is that for example, 1066 MHz? Link to comment Share on other sites More sharing options...
Wired Posted July 13, 2009 Share Posted July 13, 2009 Ok, the weird thing is this shop sold "Corsair 2GB DDR2 SDRAM PC6400 CL5.0 XMS2" as well as "Corsair 2x1GB DDR2 SDRAM PC6400 CL5.0 TwinX", as seperate memory.That's why it's best to use the part numbers. Most likely they're listed somewhere on the page. I'd guess the first one is a 2 GB stick, and the 2nd is two 1 GB sticks. Link to comment Share on other sites More sharing options...
okeee Posted July 13, 2009 Author Share Posted July 13, 2009 IIRC the SLI feature is just an extra chip on the stick but the same ICs. you should be fine. just make sure you manually key in the timings and voltage in the BIOS :): What is the timing exactly, is that for example, 1066 MHz? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted July 13, 2009 Corsair Employees Share Posted July 13, 2009 You can get the tested setting from the link in my signature. Link to comment Share on other sites More sharing options...
okeee Posted July 13, 2009 Author Share Posted July 13, 2009 You mean this one? http://forum.corsair.com/forums/showthread.php?t=52351 I checked it, "Testing parameters for Twinx/XMS2-8500/C5" but I couldn't find any timing values. I have no idea what it is, I'm not so technical. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted July 13, 2009 Corsair Employees Share Posted July 13, 2009 You did not read the first few paragraphs of that post you need to go to this one. Link to comment Share on other sites More sharing options...
okeee Posted July 13, 2009 Author Share Posted July 13, 2009 I did read it, and I couldnt find anything about timing or what a timing value looks like. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted July 13, 2009 Corsair Employees Share Posted July 13, 2009 You did not see this part? Testing parameters for Twinx/XMS2-8500/C5D: Memory Voltage 2.2 Volts Version 1.x and 2.15 Volts for version 2.x. Motherboard make and model: Asus P5B or M2N32-SLI Premium/Deluxe Only! Each pair is tested and packaged together using the following settings: AI Over Clock Tuner: Manual OC Operation: Disabled NOS Operation: Disabled CPU External Frequency: Manually set to 268 MHz PCI CLK1: Auto PCI CLK2: Auto DDR2 Voltage control: 2.20V Ver 1.x (2.1 Volts for 2.X) CPU Core Voltage: Auto CPU Multiplier: 10 DDR2 SDRAM Clock: Manually set to 800MHz DRAM Timing Selectable: Manual SDRAM CAS Latency: 5T SDRAM RAS to CAS Delay (tRCD): 5T SDRAM Row Precharge (tRP): 5T SDRAM Active to Precharge Delay (tRAS): 15T SDRAM Write Recovery Time: 5 1T/2T: 2T A1 Clock Skew: Auto ADVANCED Voltage Control: CPU Vcore offset:-Disabled DDR2 Termination:-0.5X CPU to NB HT:_____1.200V NB to SB HT:______Auto NB Core/PCI-E:____Auto SB Core/PCI-E:____Auto SB Standby core:__+1.500V All other settings are motherboard defaults. Maximum DDR2 recommended VDIMM: 2.2 Volts for Rev 1.x and 2.1 Volts for Ver. 2.X Link to comment Share on other sites More sharing options...
okeee Posted July 13, 2009 Author Share Posted July 13, 2009 I did, but what are the timing values then? I don't understand most of what is described there. Link to comment Share on other sites More sharing options...
Wired Posted July 13, 2009 Share Posted July 13, 2009 CAS Latency (tCL): 5 RAS to CAS Delay (tRCD): 5 Row Precharge (tRP): 5 Active to Precharge Delay (tRAS): 15 Those are the main timings you'll see. If you look at the memory label you'll see 5-5-5-15. Above is what it's referring to. Link to comment Share on other sites More sharing options...
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