I built the following system about a month and a half ago:
Opteron 146 2.0ghz stock
DFI NF4 Ultra-D
G.Skill 2GBHZ 2 x 1GB
Seagate 7200.10
PNY 7600GT
Ocz Gamexstream 600W
Initially, when I first built it, I could not get it started at all. I had to RMA board back to zipzoomfly. Replaced board worked but I could not start up the system after shutting down unless I flipped the power switch.
After looking over the DFI street forums, everyone had a different idea of what was causing the same problem other people were having. OCZ support told me to RMA the PSU. I waited a week or so, I was being lazy, and then the PSU actually died. Before the PSU died, I messed around with some overclocking. I was running 3.0Ghz( 300 x 10) @ 1.4V which is .025 volts over stock. Ran the mem at the 166 divider which put it at 250mhz which is stock speed for the pair.
I received my RMAed PSU this week and put it in. Works fine and even fixed my booting after shutdown issues. But now for some reason I can't overclock it much. I can get up to 2.5Ghz but that's it. Anything over will give me errors immediately in Prime95...even running the voltage up to 1.55 volts.
Does this make any sense? I didn't change anything except the PSU since I removed the old one. I have cleared the CMOS multiple times and tweaked so many settings and I am still hitting the 2.5 wall. Memtest is showing no errors so I know the errors in Prime95 are because of the CPU.
The voltages are looking alright.. 12.22 4.94 and 3.24. Temps are good, 29 C on the processor and 38 C on the chipset.
I am open to any suggestions or feedback. Thanks in advance.
Opteron 146 2.0ghz stock
DFI NF4 Ultra-D
G.Skill 2GBHZ 2 x 1GB
Seagate 7200.10
PNY 7600GT
Ocz Gamexstream 600W
Initially, when I first built it, I could not get it started at all. I had to RMA board back to zipzoomfly. Replaced board worked but I could not start up the system after shutting down unless I flipped the power switch.
After looking over the DFI street forums, everyone had a different idea of what was causing the same problem other people were having. OCZ support told me to RMA the PSU. I waited a week or so, I was being lazy, and then the PSU actually died. Before the PSU died, I messed around with some overclocking. I was running 3.0Ghz( 300 x 10) @ 1.4V which is .025 volts over stock. Ran the mem at the 166 divider which put it at 250mhz which is stock speed for the pair.
I received my RMAed PSU this week and put it in. Works fine and even fixed my booting after shutdown issues. But now for some reason I can't overclock it much. I can get up to 2.5Ghz but that's it. Anything over will give me errors immediately in Prime95...even running the voltage up to 1.55 volts.
Does this make any sense? I didn't change anything except the PSU since I removed the old one. I have cleared the CMOS multiple times and tweaked so many settings and I am still hitting the 2.5 wall. Memtest is showing no errors so I know the errors in Prime95 are because of the CPU.
The voltages are looking alright.. 12.22 4.94 and 3.24. Temps are good, 29 C on the processor and 38 C on the chipset.
I am open to any suggestions or feedback. Thanks in advance.
