Odje Posted December 28, 2007 Share Posted December 28, 2007 Hey all, I just bought a new computer and the memtest is failing. Specs and details below. So the question is do I have a bad memory module? Do I need to RMA it? Are the timings correct in the BIOS as I thought this module is 4-4-4-12 not 5-5-5-18? (assuming I am looking at the correct numbers). The same address is failing every time. Memory: Corsair TWIN2X2048-6400C4 G Motherboard: Gigabyte GA-P35-DS3P Ver 2.0 BIOS version: F8 CPU: Intel Q6600 Video: XFX 8800GT 512MB PSU: Antec Neo Power 550W Memtest Version: Memtest86+ V1.70 Memtest Result: Tst: 2, Pass: 0, Failing Address: 0007FEEE788 - 2046.8MB, Good: 00000000, Bad: 00000001, Err-Bits: 1, Count 187 BIOS settings in MB Intelligent Tweaker (M.I.T.) (all Default) Robust Graphics Booster: Auto CPU Clock Ratio: 9X CPU Frequency: 2.40GHZ(266x9) CPU Host Clock Control: Disabled CPU Host Frequency (MHz): 266 C.I.A.2: Disabled Performance Enhance: Turbo System Memory Multiplier (SPD): Auto Memory Frequency(Mhz): 800 800 DRAM Timing Selectable (SPD): Auto ******** Standard Timeing Control ******** x Case Latency Time: 5 Auto x DRAM RAS# to CAS# Delay: 5 Auto x DRAM RAS# to Precharge: 5 Auto x Precharge delay(tRAS): 18 Auto ******** Advanced Timing Control ******** x ACT to ACT Delay(tRRD): 3 Auto x Rank Write to READ Delay: 3 Auto x Write to Precharge Delay: 6 Auto x Refresh to ACT Delay: 42 Auto x Read to Precharge Delay: 3 Auto x Static tRead Value: 4 Auto x Static tRead Phase Adjust: 0 Auto ******** System Voltage Optimized ******** System Voltage Control: Manual DDR2 OverVoltage Control: Normal PCI-E OverVoltage Control: Normal FSB OverVoltage Control: Normal (G)MCH OverVoltage Control: Normal Loadline Calibration: Enabled CPU OverVoltage Control: Normal Normal CPU Vcore: 1.30000V Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted December 28, 2007 Corsair Employees Share Posted December 28, 2007 Please make sure that you have the latest BIOS for your motherboard and then load optimized defaults and set the Memory Voltage to 2.1 volts and then set the timings to 4-4-4-12 (CAS-tRCD-tRP-tRAS) and then test the modules one at a time with http://www.memtest.org! Please allow memtest to run 2-3 passes on each module. If you still get errors, we will be happy to replace them! However, if you get errors with both modules that would suggest some other problem and I would test them in another system or MB to be sure. Link to comment Share on other sites More sharing options...
Odje Posted December 29, 2007 Author Share Posted December 29, 2007 Please make sure that you have the latest BIOS for your motherboard and then load optimized defaults and set the Memory Voltage to 2.1 volts and then set the timings to 4-4-4-12 (CAS-tRCD-tRP-tRAS) and then test the modules one at a time with http://www.memtest.org! Please allow memtest to run 2-3 passes on each module. If you still get errors, we will be happy to replace them! However, if you get errors with both modules that would suggest some other problem and I would test them in another system or MB to be sure. I have the latest BIOS. What is the normal voltage? The only options in "DDR2 OverVoltage Control" is by how much to increase the voltage not absolute voltage. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted December 29, 2007 Corsair Employees Share Posted December 29, 2007 DDR2 default Voltage should be 1.8 Volts, but its hard to say what any given MB maker might set as default. It would be best to ask them but for 2.1 Volts I would set +.03 Volts on Gigabyte MB's to get 2.1 Volts. Link to comment Share on other sites More sharing options...
Odje Posted December 29, 2007 Author Share Posted December 29, 2007 DDR2 default Voltage should be 1.8 Volts, but its hard to say what any given MB maker might set as default. It would be best to ask them but for 2.1 Volts I would set +.03 Volts on Gigabyte MB's to get 2.1 Volts. Thanks for that, I'll give it ago. Do I need to change the Advanced Timing Controls as well? ******** Advanced Timing Control ******** x ACT to ACT Delay(tRRD): 3 Auto x Rank Write to READ Delay: 3 Auto x Write to Precharge Delay: 6 Auto x Refresh to ACT Delay: 42 Auto x Read to Precharge Delay: 3 Auto x Static tRead Value: 4 Auto x Static tRead Phase Adjust: 0 Auto Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted December 31, 2007 Corsair Employees Share Posted December 31, 2007 Thanks for that, I'll give it ago. Do I need to change the Advanced Timing Controls as well? Shouldn't be necessary, let us know how you make out with the tests! Link to comment Share on other sites More sharing options...
Odje Posted January 5, 2008 Author Share Posted January 5, 2008 I have solved the problem. The latest Mobo BIOS firmware (F8) is causing the fail result in MemTest. The previous version (F7) is fine. During the testing the surface temperature of the RAM gets up to 70C/158F. Is this acceptable? Should I invest in some cooling? Maybe a case fan positioned over the RAM Modules? There is less heat at lower voltages (1.8V) but then it does not pass the test with the quicker timings (4-4-4-12). Link to comment Share on other sites More sharing options...
Xtreeme Posted January 5, 2008 Share Posted January 5, 2008 Untill ramguy answers the temp question, you can try lowering the vdimm just a bit -if its stable its good. My mobo gives 1.95v stock so adding +.3 would be 2.25v! You should check the volts using everest or similar. Its that or refer to owners manual for mobo. 2.1v is the max you want to go over that they will heat up good Id guess. If it were me Id try +0.2 and if its stable Id let it at that. Ramguy- just curious. I have c5 version of this with the heatsinks that runs at 1.8v. C4 version of this use that much more power or is that just cause of the setup (mobo/ram combo). Link to comment Share on other sites More sharing options...
Odje Posted January 6, 2008 Author Share Posted January 6, 2008 I have reduced the voltage to +0.15V and it passes the Memtest with 4-4-4-12. +0.15V equals 1.984V according to the voltage readings in the BIOS. However the temp is still up. 65-66C. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 7, 2008 Corsair Employees Share Posted January 7, 2008 70C is a little hot, how are you measuring the temps? If the system is passing memtest at 2.0 volts then that should be fine. Can you tell me how hot the CPU is getting? Link to comment Share on other sites More sharing options...
Odje Posted January 8, 2008 Author Share Posted January 8, 2008 70C is a little hot, how are you measuring the temps? If the system is passing memtest at 2.0 volts then that should be fine. Can you tell me how hot the CPU is getting? The CPU is 45C while idle according to the BIOS. The RAM module surface temp was measured with a thermocouple probe connected to a digital multi meter. The probe was touched to the metal heatsink on the RAM Modules. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 8, 2008 Corsair Employees Share Posted January 8, 2008 If you would like to get the modules replaced, please use the On Line RMA Request Form and we will be happy to replace them. Link to comment Share on other sites More sharing options...
Odje Posted January 10, 2008 Author Share Posted January 10, 2008 Thank you for the offer, but I would prefer not too if there is nothing seriously wrong. I don't want to be without a computer for an extended period of time. The previous temperature readings were duing Memtest, so that would be the worst case I would assume? I took another reading today and the RAM modules are sitting at 52C while in windows and idle. Is that more acceptable? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 11, 2008 Corsair Employees Share Posted January 11, 2008 That is still a bit warm do you have good cooling in your case and have you thought about adding a memory fan? Link to comment Share on other sites More sharing options...
Odje Posted January 11, 2008 Author Share Posted January 11, 2008 The case is well ventilated, two 80mm fans at the front, plus two more at the back by the CPU, not including the 80mm fan in the PSU. Maybe my climate has something to do with, I am in Sydney, Australia, and we are in the peak of summer at the moment. Typical outside temps are 30C+. I have bought another pair of RAM Modules, same as the first pair so I can have 4GB of RAM. The RAM slots are very close together. I suspect this close proxmity is creating the heat. There is bearly enough room inbetween to get the thermocouple probe in. I'll try it out with only one pair, and see if the temps come down. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 11, 2008 Corsair Employees Share Posted January 11, 2008 One of our Dominator Memory fans (part # CMXAF1) would definitely get the memory temps down. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.