I am experimenting with an "AT special" (90nm AMD 3000+ CPU, OCZ RAM, MSI NEO2 PLAT MOBO, and an eVGA 6800 GT).
I can run the CPU at 2.6 to 2.65 with impunity, but at these high FSB settings (~300-315) I can't set the memory divider any higher than 100Mhz (0.5 to 1). BIOS and CPU-Z assert that my RAM is clocking 155Mhz at a 310 FSB...and if set the divider to 133Mhz (.66 to 1), it won't even POST. Why won't it post at what should be 180Mhz or less? Timings don't seem to matter. They are in a dual channel configuration, as the mobo manual suggests. They can run at 215Mhz with a 1:1 ratio and the FSB at 320-ish no problem.
Also, I can't make a bootable CD to run Memtest86 using Roxio CD creator. Is the CD creator my problem?
Lastly, it seems that OC-ing has not shown the benchmarking results I had hoped. Although I can run games at higher settings, which is all I care about, my 3dMark scores stay fairly constant as I increase CPU and GPU speeds. I know it's running faster--I get through 13000 frames on the "wings..." portion of 3dmark03 as compared to 10400 stock--but the end score is only about 800 pts higher. I have noticed that the min framerate generally increases, but the graphics occasionally stall for 1-3s once or twice in the demo.
My current setup:
AMD 3000+ winchester week 43 @ 2.61Ghz (307 FSB, 8.5 x clock multiplier) @ 1.75 Vcore, 62C max temp
MSI Neo2 K8N, 3x HTT
OCZ 2-3-2-5 1T DDR400 @ 153 Mhz --- WTF? (2.7 Vdimm per Mobo monitor utility software-- 2.85Vdimm set in bios makes no difference, still runs at 2.7 Vdimm)
eVGA 6800 GT @ 400Mhz, 1.140Ghz (1.7 Vagp) hits 85C in DOOM3
It's great that I stole all these extra instructions/second, but what are they getting me besides a higher dhrystone? It makes little difference in gaming...and it seems that the 50Mhz I stole from eVGA has little or no effect on 3d benchmarks.
Am I out to lunch or have others encountered similar behavior?
Everything aside, I love this system...
Cheers
:beer:
I can run the CPU at 2.6 to 2.65 with impunity, but at these high FSB settings (~300-315) I can't set the memory divider any higher than 100Mhz (0.5 to 1). BIOS and CPU-Z assert that my RAM is clocking 155Mhz at a 310 FSB...and if set the divider to 133Mhz (.66 to 1), it won't even POST. Why won't it post at what should be 180Mhz or less? Timings don't seem to matter. They are in a dual channel configuration, as the mobo manual suggests. They can run at 215Mhz with a 1:1 ratio and the FSB at 320-ish no problem.
Also, I can't make a bootable CD to run Memtest86 using Roxio CD creator. Is the CD creator my problem?
Lastly, it seems that OC-ing has not shown the benchmarking results I had hoped. Although I can run games at higher settings, which is all I care about, my 3dMark scores stay fairly constant as I increase CPU and GPU speeds. I know it's running faster--I get through 13000 frames on the "wings..." portion of 3dmark03 as compared to 10400 stock--but the end score is only about 800 pts higher. I have noticed that the min framerate generally increases, but the graphics occasionally stall for 1-3s once or twice in the demo.
My current setup:
AMD 3000+ winchester week 43 @ 2.61Ghz (307 FSB, 8.5 x clock multiplier) @ 1.75 Vcore, 62C max temp
MSI Neo2 K8N, 3x HTT
OCZ 2-3-2-5 1T DDR400 @ 153 Mhz --- WTF? (2.7 Vdimm per Mobo monitor utility software-- 2.85Vdimm set in bios makes no difference, still runs at 2.7 Vdimm)
eVGA 6800 GT @ 400Mhz, 1.140Ghz (1.7 Vagp) hits 85C in DOOM3
It's great that I stole all these extra instructions/second, but what are they getting me besides a higher dhrystone? It makes little difference in gaming...and it seems that the 50Mhz I stole from eVGA has little or no effect on 3d benchmarks.
Am I out to lunch or have others encountered similar behavior?
Everything aside, I love this system...
Cheers
:beer:
