Just built and received a nice little Cyberpower Core i7 930 PC.
Set up:
Core i7 930
Asus P6T SE Mobo
6g AData DDR3 Triple Channel 1600 x3 Gaming Series
EVGA 9500 GT 1g DDR2
Xigmatek Dark Knight-CPU fan
Xtremegear 700 watt PSU
Had Cyberpower do a 10% over clock
Win 7 64 bit
First time I powered it up, it said cmos failure, hit F1 to reset defaults / F2 to enter bois. I hit F1 not thinking and lost the overclocking. (no big deal). Later learned this was do to a memory mismatch ... see below.
So I get into win 7 and check with CPUID ... All is there CPU/GPU/6g/ etc just as ordered.
But I go to Win Task manager and windows is only seeing 4g. Reboot. It sees 6g
Kinda flaky. Has locked up a few times. No over clocking just stock. System runs VERY cool at 38c all cores (+/- a degree per core). 20% overclock and stress testing and it runs at 62*c. Still Quite cool.
Called Cyberpower .... VERY Helpful. Spent a good amount of time on the phone. Tried re-seating the CPU in the socket, Switching memory around, Running each Mem modual by it self at 2 gig in channel 1, Ran Prime95 and Intel Burn Test on Each for a few hours ... all with no problem.
But put the 6 back in ... and it only sees 4. Power off and it sees 6 again. Leave it running, testing, reboot, overclock, etc ... no problem. Cut the power, pull the plug, come back tomorrow ... only sees 4 of the 6 gig until restart. If I use 4 gig it only sees 2g after being off over night.
Only test it will not run very well is Intel Burn Test Extreme Mode. It hangs, but then in 30 secs or so it recovers and starts test #2, repeat, etc.
After much discussion with Cyberpower tech suppoer, they sent me a new Mobo and video Card. Replaced both reallly hoping this was it .... Nothing. Same problem. Now they are sending out new memory. A full replacement set of AData 1600 triple channel Gaming Series 6g x3. But both they and I are very doubtful memory is the problem. Hopeful ... but doubtful. They give it a 50/50 chance of solving the problem.
So what else could it be??? My next thought is the CPU. My understanding is that on the Core i7 930s the CPU controls the memory Directly.
Or could it be as simple as the Mobo battery. Funny if it is that because it has had the same problem on 2 different Mobos ... and the clock holds time and it keeps the overclock settings when I use them. And the memory problem has been an issue overclocked or not.
Next step if the new memory that is in transit does not work is to send the whole pc back to Cypberpower ... a prospect I am not looking forward to.
Any suggestions?
Could it be a relationship between the 1 g of DDR2 on the GPU card and the 6g of DDR3 on the Mobo?
Other than that, another issue I am wondering about is the 1600 memory. I noted in the manual of the Mobo that with 1600 you can only use 1 slot per the 3 channels. ie. there are 3 memory channels each with 2 slots. So with 1600 mem half the memory expansion capacity is useless. Asus manual says it is an Intel limitation when using 1600 memory. What is up with that??? Could this possibly be the source of the problem. Should I switch to 1333s or 1800s??
thanks for the help. This has really got me stumped.
Mike
Set up:
Core i7 930
Asus P6T SE Mobo
6g AData DDR3 Triple Channel 1600 x3 Gaming Series
EVGA 9500 GT 1g DDR2
Xigmatek Dark Knight-CPU fan
Xtremegear 700 watt PSU
Had Cyberpower do a 10% over clock
Win 7 64 bit
First time I powered it up, it said cmos failure, hit F1 to reset defaults / F2 to enter bois. I hit F1 not thinking and lost the overclocking. (no big deal). Later learned this was do to a memory mismatch ... see below.
So I get into win 7 and check with CPUID ... All is there CPU/GPU/6g/ etc just as ordered.
But I go to Win Task manager and windows is only seeing 4g. Reboot. It sees 6g
Kinda flaky. Has locked up a few times. No over clocking just stock. System runs VERY cool at 38c all cores (+/- a degree per core). 20% overclock and stress testing and it runs at 62*c. Still Quite cool.
Called Cyberpower .... VERY Helpful. Spent a good amount of time on the phone. Tried re-seating the CPU in the socket, Switching memory around, Running each Mem modual by it self at 2 gig in channel 1, Ran Prime95 and Intel Burn Test on Each for a few hours ... all with no problem.
But put the 6 back in ... and it only sees 4. Power off and it sees 6 again. Leave it running, testing, reboot, overclock, etc ... no problem. Cut the power, pull the plug, come back tomorrow ... only sees 4 of the 6 gig until restart. If I use 4 gig it only sees 2g after being off over night.
Only test it will not run very well is Intel Burn Test Extreme Mode. It hangs, but then in 30 secs or so it recovers and starts test #2, repeat, etc.
After much discussion with Cyberpower tech suppoer, they sent me a new Mobo and video Card. Replaced both reallly hoping this was it .... Nothing. Same problem. Now they are sending out new memory. A full replacement set of AData 1600 triple channel Gaming Series 6g x3. But both they and I are very doubtful memory is the problem. Hopeful ... but doubtful. They give it a 50/50 chance of solving the problem.
So what else could it be??? My next thought is the CPU. My understanding is that on the Core i7 930s the CPU controls the memory Directly.
Or could it be as simple as the Mobo battery. Funny if it is that because it has had the same problem on 2 different Mobos ... and the clock holds time and it keeps the overclock settings when I use them. And the memory problem has been an issue overclocked or not.
Next step if the new memory that is in transit does not work is to send the whole pc back to Cypberpower ... a prospect I am not looking forward to.
Any suggestions?
Could it be a relationship between the 1 g of DDR2 on the GPU card and the 6g of DDR3 on the Mobo?
Other than that, another issue I am wondering about is the 1600 memory. I noted in the manual of the Mobo that with 1600 you can only use 1 slot per the 3 channels. ie. there are 3 memory channels each with 2 slots. So with 1600 mem half the memory expansion capacity is useless. Asus manual says it is an Intel limitation when using 1600 memory. What is up with that??? Could this possibly be the source of the problem. Should I switch to 1333s or 1800s??
thanks for the help. This has really got me stumped.
Mike
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