Well, it has been a long time since I posted about my OC on this chip, and have run into a new ceiling.
I recently installed a new HSF (Scythe Samurai Zz) that has dramatically lowered my operating temps on the CPU. Prior to putting this HSF in, I was limited in my OC efforts to the restrictive stock HSF, and thus, could only OC to a temp threshold I was comfortable with, 55c. This limit in place, I ended up settling on a daily 3.25ghz clock, as it was P95 stable with a max temp of 54c. I was able to run up to 3.4 fairly well, but wasn't comfortable with the 58-60c P95 peak temps. I was able to bench @ 3.6ghz, but without even a hint of stability beyond a CPUID validation and a single 3Dmark06 run.
Well, as I already said above (and on numerous other threads since I got it, heh) the new HSF has dropped my temps significantly and has thus allowed me to OC the chip further without worry of hitting thermal thresholds. but I have run into another wall, and am looking for any insight or hints that you all might have to offer.
Current configuration:
XP 64 bit SP2
Gigabyte MA780g-UD3H Mobo
PhII 710x3 @ 3.55ghz
4gb OCZ Gold XTC 1066 DDR2 Ram
CPUID validation link: http://valid.canardpc.com/show_oc.php?id=822692
I have run this setup p95 stable (8hrs blend). I am not dissappointed with this as my games and programs are running awesome, but was hoping to go higher. My current BIOS settings:
273 FSB
x7 HT Link - (1.4ghz)
x8 NB
4.00 memory @ 1092mhz, 2.1v
CPU Volts + .175 for 1.5v
24/49c idle/load temps
Since installing the new HSF, I have been unable to replicate 3.6ghz (@277fsb), even if only to post. This baffles me, as I had played around with those settings as short as a month before with enough success to run 3dmark06.
My system BSoD memory dumps at 274mhz FSB about 10seconds into doing anything at all. At 273, everything is tight. I figured that this was pointing to either my memory not getting enough volts, or just being clocked too high. Since I am already running the max warrantied volts for my ram (2.1v) I tried instead to drop the multiplier to 3.33 keeping the rest of my stable settings intact. It woouldn't post. I tried loosening up the timings and lowering the voltages, but to no avail, my computer refuses to post @ 3.33 memory multiplier. If this is as high as I am going to see out of this non-BE chip, I am fine with that, but if there is anything I can do to squeeze a bit more out of it, I might be willing to give it a shot.
Might upgrading to 1200mhz rated memory open up some more headroom?
Also, I have read that 64bit OS often run lower stable OC than 32bit OS across the same hardware. If this is true, then I have to assume that upgrading to Windows 7 Ultimate 64 won't change my situation, correct me if I am wrong, please. I understand that XP64 is rather dated and lacking current support, so I would understand if that is contributing to my limits, though I haven't come across anything to confirm or deny that theory.
Thanks everyone for helping expand my understanding of overclocking, and re-igniting my interest in this dark art. I wouldn't have gotten this far without all your support (and I try to repay in kind) and hope someone has an answer to my questions, good or bad, heh.
I recently installed a new HSF (Scythe Samurai Zz) that has dramatically lowered my operating temps on the CPU. Prior to putting this HSF in, I was limited in my OC efforts to the restrictive stock HSF, and thus, could only OC to a temp threshold I was comfortable with, 55c. This limit in place, I ended up settling on a daily 3.25ghz clock, as it was P95 stable with a max temp of 54c. I was able to run up to 3.4 fairly well, but wasn't comfortable with the 58-60c P95 peak temps. I was able to bench @ 3.6ghz, but without even a hint of stability beyond a CPUID validation and a single 3Dmark06 run.
Well, as I already said above (and on numerous other threads since I got it, heh) the new HSF has dropped my temps significantly and has thus allowed me to OC the chip further without worry of hitting thermal thresholds. but I have run into another wall, and am looking for any insight or hints that you all might have to offer.
Current configuration:
XP 64 bit SP2
Gigabyte MA780g-UD3H Mobo
PhII 710x3 @ 3.55ghz
4gb OCZ Gold XTC 1066 DDR2 Ram
CPUID validation link: http://valid.canardpc.com/show_oc.php?id=822692
I have run this setup p95 stable (8hrs blend). I am not dissappointed with this as my games and programs are running awesome, but was hoping to go higher. My current BIOS settings:
273 FSB
x7 HT Link - (1.4ghz)
x8 NB
4.00 memory @ 1092mhz, 2.1v
CPU Volts + .175 for 1.5v
24/49c idle/load temps
Since installing the new HSF, I have been unable to replicate 3.6ghz (@277fsb), even if only to post. This baffles me, as I had played around with those settings as short as a month before with enough success to run 3dmark06.
My system BSoD memory dumps at 274mhz FSB about 10seconds into doing anything at all. At 273, everything is tight. I figured that this was pointing to either my memory not getting enough volts, or just being clocked too high. Since I am already running the max warrantied volts for my ram (2.1v) I tried instead to drop the multiplier to 3.33 keeping the rest of my stable settings intact. It woouldn't post. I tried loosening up the timings and lowering the voltages, but to no avail, my computer refuses to post @ 3.33 memory multiplier. If this is as high as I am going to see out of this non-BE chip, I am fine with that, but if there is anything I can do to squeeze a bit more out of it, I might be willing to give it a shot.
Might upgrading to 1200mhz rated memory open up some more headroom?
Also, I have read that 64bit OS often run lower stable OC than 32bit OS across the same hardware. If this is true, then I have to assume that upgrading to Windows 7 Ultimate 64 won't change my situation, correct me if I am wrong, please. I understand that XP64 is rather dated and lacking current support, so I would understand if that is contributing to my limits, though I haven't come across anything to confirm or deny that theory.
Thanks everyone for helping expand my understanding of overclocking, and re-igniting my interest in this dark art. I wouldn't have gotten this far without all your support (and I try to repay in kind) and hope someone has an answer to my questions, good or bad, heh.