This is only true for the B2 stepping. The L2 stepping only features 2MB L2 cache actually physically on the die itself.
Originally posted by: HopJokey
Originally posted by: FireChicken
My friend just got his up to 3.44ghz and hit a hard wall. 430 FSB was fine and othos stable for 8hrs, but wouldnt post at 431 and we tried everything. Wierd thing is that he could get it up to 3.2 at default voltage. He wants to hit 3.5-3.6 think that is possibe with the 6420?
these cpus are suppoed to be the same at the 6400 but with the extra cache. But the 6400 are monster OCers. Seems like all the 4mb cache cpus dont overclock as well as the ones with the 2mb cache. I wonder how the extra cache affects C2D OC ability?
I don't believe the cache affets the OC ability as the 6400 physically has 4MB of cache (2MB is disabled). It probably has to do with the manufacturing; the 6420's come from different wafers than the 6400's.
It happens for no reason and with no patterns, and once it starts happening it keeps happening. In my case, it doesn't crash the whole machine but it crashes itself once all cores are 100% loaded. The thing is, it didn't happen till a few days ago. But eve since then it always crashes when CPU is under load.Originally posted by: BigJ
Just ran Orthos for 8 hours on my 6420 at 8x400 (3.2ghz).
The only problem I'm having is that CoreTemp crashes the entire computer even at stock speeds for some reason.
Don't forget that motherboards treat 2MB L2 CPUs and 4MB L2 CPUs differently. It took some time for me to understand this.Originally posted by: GFORCE100
Originally posted by: HopJokey
Originally posted by: FireChicken
My friend just got his up to 3.44ghz and hit a hard wall. 430 FSB was fine and othos stable for 8hrs, but wouldnt post at 431 and we tried everything. Wierd thing is that he could get it up to 3.2 at default voltage. He wants to hit 3.5-3.6 think that is possibe with the 6420?
these cpus are suppoed to be the same at the 6400 but with the extra cache. But the 6400 are monster OCers. Seems like all the 4mb cache cpus dont overclock as well as the ones with the 2mb cache. I wonder how the extra cache affects C2D OC ability?
I don't believe the cache affets the OC ability as the 6400 physically has 4MB of cache (2MB is disabled). It probably has to do with the manufacturing; the 6420's come from different wafers than the 6400's.
This is only true for the B2 stepping. The L2 stepping only features 2MB L2 cache actually physically on the die itself.
Originally posted by: lopri
It happens for no reason and with no patterns, and once it starts happening it keeps happening. In my case, it doesn't crash the whole machine but it crashes itself once all cores are 100% loaded. The thing is, it didn't happen till a few days ago. But eve since then it always crashes when CPU is under load.Originally posted by: BigJ
Just ran Orthos for 8 hours on my 6420 at 8x400 (3.2ghz).
The only problem I'm having is that CoreTemp crashes the entire computer even at stock speeds for some reason.
The only problem I'm having is that CoreTemp crashes the entire computer even at stock speeds for some reason.
Originally posted by: Xvys
The only problem I'm having is that CoreTemp crashes the entire computer even at stock speeds for some reason.
That started happening to me the other day, CoreTemp crashing my computer. I thought something had gone awry, but it was only CoreTemp, everything else works and o'c like normal. I use TAT now, but it registers two degrees higher than CoreTemp, so I liked it better
Originally posted by: Diogenes2
Thanks for the concern, but I'm not asking for help. I just posted this as an observation, in light of the assumptions by some, that every C2D is a 3g chip by default...Originally posted by: PuffDaMagicSamus
Sounds like it's something other than your chip affecting your OC. First off I'd def. get a better cooler. Considering I have my chip at 3.2 on 1.32v and got up to 3.6 on 1.5 you shouldn't be having a problem getting to 3.0Ghz. Post your setting in your BIOS. List what options you have enabled/disabled and what all your voltages are. Also what are your RAM timings?
I've been overclocking since the celeron 300 , and I know a little bit about it.
I spent about a week ( when I could find some time ) tweaking this combo
in every possible way.
It would take a lot more time than I have to spare, to list all the settings I've tried.
Like I said, I may try it in my other DS3 that is stable at 3.4, just to make sure this
MOBO doesn't have a problem . It is just not a good time for me to take it ( the other rig ) down.
I' ll let you know if I find it's not the chip, after all ..
If you are sure it's not the chip, make me an offer ..
Originally posted by: keysplayr2003
Well, why didn't you try the chip in the other DS3 board BEFORE making this thread?
Anybody else can't hit 3GHz on their 6420? I have one, but haven't tried o/c'ing it yet.
Have to do some more reading before the attempt. Make sure I'm doing it right. You know, make sure my board is not faulty or anything. "hint"