Hi
I have run into unusual problem on my system. I tried to search for similar problems on this forum, but was unable to find a solution, sorry if i missed something.
So here it is:
Originally, I had a perfectly stable system, based on GA-EP45C-DS3 motherboard, with E6600 Dual core CPU and 2x2Gb DDR3 (Geil GV32GB1333C7DC) memory sticks running in dual channel mode. Memory is labeled to run on 1.5v.
Then i decided to replace a CPU with more powerfull one, so i bought a Q9650. After replacing old CPU with the new one, the system wouldn't boot. System fans running, HDD staring up, and then system immideatly going into reboot without even getting to post screen, without any beeps or anything. After spending some time in that state, system automatically turns off.
After some experemintations, i have found the cause of that.
(The motherboard have 2 DDR3 slots, i will call one that is closer to CPU as the "first" one and one that is further away from CPU as "second".)
Short version: Whenever there is a memory stick in the second slot, the system won't boot with quad-core CPU.
Basically, i tried many different setups.
With old Dual-core CPU, the system run stable with any memory setup. 1 of any sticks in any slot, as well as in dual channel mode.
With the new Quad-Core CPU, if i put both sticks in, it won't start. If i put any one of sticks in second slot, system won't start.
But if i put any one stick in the first DDR3 slot, but leave the second slot empty, the system will start and run stable.
I tried to replace sticks with each other, results were are equal, so both memory sticks are in good shape.
Both DDR3 slots works fine with old CPU, so they are seem to be in good shape as well. Problems only start when i install the QuadCore CPU AND a memory stick in second slot. That really seem like some kind of weird hardware compatibility/instability problem.
I am using a good Zalman 850W power supply, with all cables connected (i double checked that), so power shouldn't be a problem.
So far system run stable with 1 stick in first slot, but obviously i would like to somehow get all 4Gb of memory to work with new CPU.
What i was thinking of, is
1) Old bios. My current bios of motherboard is F3, while top version released is F5. Maybe flashing new version will help? I don't want to do it unless i actually get confirmation that it at least could help.
2) Some kind of power problem... maybe increasing voltage on CPU and/or memory would fix this?
3) I have not touched any bios setting after replacing old processor with new one, everything was and still stays on "Auto" and such. Maybe i should try to tweak some settings specifically for quad-core?
I am programmer, but by no means expert in low-level hardware - voltages and such, so i really need an advice here.
I am posting this while being away from the computer in question, but i will post bios settings (using a template from other threads) when i get to it.
I have run into unusual problem on my system. I tried to search for similar problems on this forum, but was unable to find a solution, sorry if i missed something.
So here it is:
Originally, I had a perfectly stable system, based on GA-EP45C-DS3 motherboard, with E6600 Dual core CPU and 2x2Gb DDR3 (Geil GV32GB1333C7DC) memory sticks running in dual channel mode. Memory is labeled to run on 1.5v.
Then i decided to replace a CPU with more powerfull one, so i bought a Q9650. After replacing old CPU with the new one, the system wouldn't boot. System fans running, HDD staring up, and then system immideatly going into reboot without even getting to post screen, without any beeps or anything. After spending some time in that state, system automatically turns off.
After some experemintations, i have found the cause of that.
(The motherboard have 2 DDR3 slots, i will call one that is closer to CPU as the "first" one and one that is further away from CPU as "second".)
Short version: Whenever there is a memory stick in the second slot, the system won't boot with quad-core CPU.
Basically, i tried many different setups.
With old Dual-core CPU, the system run stable with any memory setup. 1 of any sticks in any slot, as well as in dual channel mode.
With the new Quad-Core CPU, if i put both sticks in, it won't start. If i put any one of sticks in second slot, system won't start.
But if i put any one stick in the first DDR3 slot, but leave the second slot empty, the system will start and run stable.
I tried to replace sticks with each other, results were are equal, so both memory sticks are in good shape.
Both DDR3 slots works fine with old CPU, so they are seem to be in good shape as well. Problems only start when i install the QuadCore CPU AND a memory stick in second slot. That really seem like some kind of weird hardware compatibility/instability problem.
I am using a good Zalman 850W power supply, with all cables connected (i double checked that), so power shouldn't be a problem.
So far system run stable with 1 stick in first slot, but obviously i would like to somehow get all 4Gb of memory to work with new CPU.
What i was thinking of, is
1) Old bios. My current bios of motherboard is F3, while top version released is F5. Maybe flashing new version will help? I don't want to do it unless i actually get confirmation that it at least could help.
2) Some kind of power problem... maybe increasing voltage on CPU and/or memory would fix this?
3) I have not touched any bios setting after replacing old processor with new one, everything was and still stays on "Auto" and such. Maybe i should try to tweak some settings specifically for quad-core?
I am programmer, but by no means expert in low-level hardware - voltages and such, so i really need an advice here.
I am posting this while being away from the computer in question, but i will post bios settings (using a template from other threads) when i get to it.
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