Hi Guys -
I've been reading on this forum for a few weeks after a few people from other forums suggested that this forum is the BEST for quick and accurate responses.
I recently completed my new build after getting upgrading parts over the past half year. Please see my signature for the stuff (hopefully it shows up in this thread!). After fiddling around for the past 1 1/2 weeks trying to get my new Opty 148 to a stable 2.8 overclock, I'm not having too much luck. Everything seems to fail in Prime 95 after about 5 hours or less.
Without repeating too much from the signature, I'm using a MSI K8N Neo4-F motherboard with an Opteron 148 CACJE chip and G. Skill 2gb dual kit DDR500 running 3-4-4-8-1T at DDR510 speed.
Here are my settings:
-FSB 255 at 4X HTT mult
-Memory running 1:1 with FSB speed (200 setting in BIOS) with 3-4-4-8 1T timings and 2.6v (2.6v to 2.8v recommended but people say 2.5v is nice if you have that option in the bios which I do)
-CPU mult 11x with 1.497vcore (1.45 plus 3.3% special vid)
-NF4 chipset set to 1.6v (1.5v stock)
-All spreads disabled
Something here is holding me back. I am running 1.6 Platinum bios which I heard is good for OCing on the board. I've heard people getting up to 3ghz speeds stable with their OPty 148's ...maybe my stepping is not that good? I kinda think either my memory has something setup not quite right or the chipset volts is picky (it redlines at 1.75v in the bios...the most I can go is 1.7v).
Anyone have any ideas? At 1.5vcore, I'm running around ~43C under load and ~32C idle. I can probably go up to 1.55vcore and see if I'm stable there but I really don't like the added voltage cuz my temps will most likely jump up to mid to high 40's.
Thanx all.
I've been reading on this forum for a few weeks after a few people from other forums suggested that this forum is the BEST for quick and accurate responses.
I recently completed my new build after getting upgrading parts over the past half year. Please see my signature for the stuff (hopefully it shows up in this thread!). After fiddling around for the past 1 1/2 weeks trying to get my new Opty 148 to a stable 2.8 overclock, I'm not having too much luck. Everything seems to fail in Prime 95 after about 5 hours or less.
Without repeating too much from the signature, I'm using a MSI K8N Neo4-F motherboard with an Opteron 148 CACJE chip and G. Skill 2gb dual kit DDR500 running 3-4-4-8-1T at DDR510 speed.
Here are my settings:
-FSB 255 at 4X HTT mult
-Memory running 1:1 with FSB speed (200 setting in BIOS) with 3-4-4-8 1T timings and 2.6v (2.6v to 2.8v recommended but people say 2.5v is nice if you have that option in the bios which I do)
-CPU mult 11x with 1.497vcore (1.45 plus 3.3% special vid)
-NF4 chipset set to 1.6v (1.5v stock)
-All spreads disabled
Something here is holding me back. I am running 1.6 Platinum bios which I heard is good for OCing on the board. I've heard people getting up to 3ghz speeds stable with their OPty 148's ...maybe my stepping is not that good? I kinda think either my memory has something setup not quite right or the chipset volts is picky (it redlines at 1.75v in the bios...the most I can go is 1.7v).
Anyone have any ideas? At 1.5vcore, I'm running around ~43C under load and ~32C idle. I can probably go up to 1.55vcore and see if I'm stable there but I really don't like the added voltage cuz my temps will most likely jump up to mid to high 40's.
Thanx all.