Asrock N68C-S UCC DDR3 Problem

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   I have a weird problem that I need help with. Just an FYI, my problem only involves DDR3. I have no issues with DDR2.

So here is my problem. When I turn off the power supply using the on/off switch on the back of the power supply and then turn it back on and try to boot the system, the motherboard powers on and then immediately turns off. Meaning the fans spin up, LED lights come on and then everything shuts down.

To get everything working again I have to pull the DDR3 memory sticks, turn on the computer and have it post to error for the missing memory, shut down and reinstall the DDR3 memory and then the computer will properly start. The motherboard will have no issues until the next time I have to flip that power supply switch. I then have to do the same thing all over again.

Anyone have any thoughts? Like I said this issue is only present if I use DDR3. If I use DDR2 I can flip the power switch on the power supply on and off all day and have no issue. I have Tried DDR3 memory from Kingston, Patriot, ADATA, G.Skill and Corsair. All have the same issue. I have even tried different video cards and a EVGA 500 watt power supply.

System being tested:
AMD Phenom II X2 545
Asrock N68C-S UCC
ADATA DDR3-1600 2gb x 2
ATI Radeon HD5870
Corsair TX750 power supply

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c1k2j3c4 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 12 Jun 2021 Status: Offline Points: 55	Post Options Post Reply Quote c1k2j3c4 Report Post Thanks(0) Quote Reply Topic: Asrock N68C-S UCC DDR3 Problem Posted: 18 Jun 2021 at 2:16pm
	I have a weird problem that I need help with. Just an FYI, my problem only involves DDR3. I have no issues with DDR2. So here is my problem. When I turn off the power supply using the on/off switch on the back of the power supply and then turn it back on and try to boot the system, the motherboard powers on and then immediately turns off. Meaning the fans spin up, LED lights come on and then everything shuts down. To get everything working again I have to pull the DDR3 memory sticks, turn on the computer and have it post to error for the missing memory, shut down and reinstall the DDR3 memory and then the computer will properly start. The motherboard will have no issues until the next time I have to flip that power supply switch. I then have to do the same thing all over again. Anyone have any thoughts? Like I said this issue is only present if I use DDR3. If I use DDR2 I can flip the power switch on the power supply on and off all day and have no issue. I have Tried DDR3 memory from Kingston, Patriot, ADATA, G.Skill and Corsair. All have the same issue. I have even tried different video cards and a EVGA 500 watt power supply. System being tested: AMD Phenom II X2 545 Asrock N68C-S UCC ADATA DDR3-1600 2gb x 2 ATI Radeon HD5870 Corsair TX750 power supply