aduh Posted October 31, 2007 Share Posted October 31, 2007 Hi, I have big problem with not working memory Dual Channel on P5E mainboard. I have 4 1GB memory modules Corsair CM2X1024-6400C4 and they are on ASUS QVL list so they should work yes ? Every module is fine. Every module is working fine alone or together with second module but on Single Channel (Channel A: yellow and black slot). When I insert 2 modules to yellow or black slots (for Dual Channel working) system is not booting (my screen is black and nothing is happen). When I insert 4 modules to four slots (for Dual Channel working) system is not booting (my screen is black and nothing is happen). When I insert 1 module to DIMM_A1 (yelow) system is working fine. When I insert 1 module to DIMM_A2 (black) system is working fine. When I insert 1 module to DIMM_B1 (yelow) system is not booting. Black screen. When I insert 1 module to DIMM_B2 (black) system is not booting. Black screen. When I insert 2 modules to DIMM_A1(yelow)&DIMM_A2(black) system is working fine (Single Channel). What is going on ? Is it possible that Channel B: DIMM_B1 (yellow) & DIMM_B2(black) slots are broken ? I'm setting DRAM Voltage to 2.1V, to auto , even to 2.2V and nothing works. I'm setting DRAM Timing Control to 4-4-4-12, auto and nothing works. Im using newest BIOS 0303. p.s. I have checking also with other Memory modules - GEIL 2 x 1GB and problem is the same. 2 memory modules working fine on yellow&black slots on Single Channel mode but when I insert 1 module to lower slots for Dual Channel mode system is not booting. My screan is black and nothing happen. I can't even start BIOS ! Thank you for your help. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 31, 2007 Corsair Employees Share Posted October 31, 2007 That would suggest a problem with the MB and or BIOS, or maybe the PSU. I would suggest checking that the CPU you have is supported by the BIOS version you have installed and if it is supported then I would check the memory in a known working system and if that works properly I would test the CPU in another MB. If the memory and CPU work properly and the PSU you have has enough power I would suggest getting the MB replaced. Link to comment Share on other sites More sharing options...
aduh Posted November 1, 2007 Author Share Posted November 1, 2007 CPU - Q6600 Intel, this mobo is designed for this CPU PSU - Seasonic 500W, Im sure it's enough is it possible that those 2 lower memory slots on my mainboard are damaged ? if so, why this mobo is normal working on Single Channel without any blue screen or something ... Maybe CPU is damaged ? but it's working stable and fast for now Link to comment Share on other sites More sharing options...
DerekT Posted November 1, 2007 Share Posted November 1, 2007 This is a motherboard issue. I would look to RMA of the mainboard. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted November 1, 2007 Corsair Employees Share Posted November 1, 2007 I would agree talk to the MB maker and see what they say. Link to comment Share on other sites More sharing options...
mwoe Posted December 4, 2007 Share Posted December 4, 2007 problem solved? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted December 4, 2007 Corsair Employees Share Posted December 4, 2007 Great and thank you for letting us know! Link to comment Share on other sites More sharing options...
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