Fate Posted January 23, 2005 Share Posted January 23, 2005 I have a Asus A7N8X system with 1 Gig TwinX XMS PC3200 memory, I upgraded from the exact same type of memory, only 512 of it before. First batch I got from newegg failed on Memory test, and wouldn't work at 200mhz, only at 133 & 166, yes it was PC3200. So I RMA'ed it, and they sent me a new set. The new set seemed to work fine for one day, then I started getting Auto Restarts on my PC, now I get critial errors and crashes using any system on my PC, games, IE, ect, sometimes even on booting. I know it is the memory cuz I can pop in my old 512mb of the exact same type of ram and my system works fine. I use default settings without any over-clocking. my specs are: Geforce FX5900 Asus A7N8X pcb 2.0 AMD XP 3200+ ps. my mobo can support up too 3gigs of ram, so I know thats not the problem. Link to comment Share on other sites More sharing options...
Fate Posted January 24, 2005 Author Share Posted January 24, 2005 its odd the Memory seems to run fine in single channel mode, I don't know why. Anyone have any ideas? Link to comment Share on other sites More sharing options...
Wired Posted January 24, 2005 Share Posted January 24, 2005 could be the memory controller on the chipset. Link to comment Share on other sites More sharing options...
Fate Posted January 24, 2005 Author Share Posted January 24, 2005 could be the memory controller on the chipset. Then why does it work fine when I pop in my old Memory of the exact same type in both Single and Duel mode? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 24, 2005 Corsair Employees Share Posted January 24, 2005 Can you tell me the bios settings you have set for both CPU and memory and any performance settings that you may have set? Link to comment Share on other sites More sharing options...
Fate Posted January 25, 2005 Author Share Posted January 25, 2005 Memory is running at 200mhz So is the CPUs FSB, No overclock settings at all. The Memory has been totally stable but ONLY when in single channel mode. The TwinX is the exact same type as my 2x256 sticks that work fine in duel channel mode. So it has to be faulty memory. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 25, 2005 Corsair Employees Share Posted January 25, 2005 But please tell me the exact part# that you have and the CPU speed and it's default FSB and the exact bios settings you have set. The fact that the system runs and passes memtest when in single channel would suggest it’s just a setting that might be the cause. And the Info above will help us to verify that! Link to comment Share on other sites More sharing options...
Fate Posted January 26, 2005 Author Share Posted January 26, 2005 CPU AMD XP 3200+ 400mhz FSB Memory (taken from the back barcode on package) TWINX1024-3200C2PT Bios sets CPU speed auto, so no adjustments done. Memory is set at 200mhz, as is the computers FSB. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 26, 2005 Corsair Employees Share Posted January 26, 2005 Please try this:First move the modules to slots 2-3 if they are not there already and then move the FSB Jumper to pins 2-3 furthest away from the CPU. Then before you turn the system back on clear the bios with the battery removed with the CLRTC jumper for about 2-3 Min. Then when you turn the system back on go to bios setup and load setup defaults and set these settings.CPU External Freq.: 200MHzCPU Frequency Multiple Setting: AutoCPU Frequency Multiple: 11xSystem Performance: User DefineCPU Interface: OptimalMemory Frequency: 100%Resulting Frequency: 400Memory Timings: User defineSDRAM Active Precharge Delay: 6SDRAM RAS to CAS Delay: 3SDRAM RAS Precharge Delay: 3SDRAM CAS Latency: 2.5TFSB Spread Spectrum: 0.50 %AGP Spread Spectrum: DisabledCPU VCore Settings: AutoCPU VCore: 1.650VGraphic Aperture Size: 64MBAGP Frequency: AutoSystem BIOS Cacheable: DisabledVideo RAM Cacheable: DisabledDDR Reference Voltage: 2.7V Then please test the system with http://www.memtest.org. Link to comment Share on other sites More sharing options...
Fate Posted January 27, 2005 Author Share Posted January 27, 2005 If you change that jumper on the A7N8X (2.0) you'll be forcing a the FSB to 200mhz instead of 400mhz. Anyway I did the rest of the stuff and so far so good, if this works Your da Man! Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 27, 2005 Corsair Employees Share Posted January 27, 2005 That was a misprint in the manual; instead of putting 400MHz they mistakenly put 200MHz. Link to comment Share on other sites More sharing options...
Fate Posted January 27, 2005 Author Share Posted January 27, 2005 I'm not sure, the A7N8X Version 1. manual says this: Also version 1 of this MB didn't support 400mhz FSB. CPU_FSB 1 & 2 = FSB 333/266 2 & 3 = FSB 200 Then the Insert for PCB version 2.0 says this 1 & 2 = FSB 400/333/266 2 & 3 = FSB 200 It can't be a miss printing on both. If you can tell me that for sure, from Asus then I'll go ahead and change it, I haven't found anything else on it. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 27, 2005 Corsair Employees Share Posted January 27, 2005 I have tested several MB's from ASUS and this is what I had to do to get them to pass with any module I tested when running a 200 FSB CPU. Link to comment Share on other sites More sharing options...
Fate Posted January 28, 2005 Author Share Posted January 28, 2005 I have tested several MB's from ASUS and this is what I had to do to get them to pass with any module I tested when running a 200 FSB CPU. The AMD 3200+ has a 400mhz FSB. That jumper sets the max to 200mhz For total FSB, not 2x200mhz Anyway my system is stable so far, with just the RAM settings changed. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 28, 2005 Corsair Employees Share Posted January 28, 2005 I understand, but you set the CPU Freq to 200 MHz or 400 DDR 200 MHz X 200. The manual has it listed as if its a duron running at 100 MHz. Link to comment Share on other sites More sharing options...
Fate Posted January 28, 2005 Author Share Posted January 28, 2005 I understand, but you set the CPU Freq to 200 MHz or 400 DDR 200 MHz X 200. The manual has it listed as if its a duron running at 100 MHz. Then my system shouldn't read that I have a XP 3200+, because if you lower the FSB on AMD XP chips they read as something else, for example: My 3200+ when running at 333fbs gets listed as a 2500+ in windows. Anyway I ram is working cool now, no a single problem yet. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 28, 2005 Corsair Employees Share Posted January 28, 2005 Good, and the CPU Frequency should be set to 200 Mhz clock or 200 MHz X 2 = 400 FSB. Just to be clear. Link to comment Share on other sites More sharing options...
Fate Posted January 30, 2005 Author Share Posted January 30, 2005 Good, and the CPU Frequency should be set to 200 Mhz clock or 200 MHz X 2 = 400 FSB. Just to be clear. Yup, all is well. Thanks RAM GUY, Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 31, 2005 Corsair Employees Share Posted January 31, 2005 N.P. Glad to hear everything is running as is. Link to comment Share on other sites More sharing options...
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