Originally Posted by rx7racer
All right guys, I don't really mean to double post but. I have done the BSEL1 pin mod as i have stated previously many times, and now i am wondering if it is actually holding me back. I got stable on my Biostar P965 @ 2925Mhz, 325x9, 1.425vcore. well on this MSI mb i'm hitting the same, but at 1.32Vcore and i was able to get it posted and run orthos for about 10 min. with a fsb of 365 with a multi of 8. this is where it kinda gets tricky. With my Biostar i could get 340 fsb to post, and stable but it took insane amount of Vcore, now i can't, so i'm thinking my cpu can do higher fsb's, but the question is, is my pin mod causing me more of a variance in my cpu speed then without it?
I guess what I am getting at is that I'm questioning this mod and its effects on the cpu? Is it worth the time and try to un mod it to see what changes I get.
The reason I ask is because so many other E4300 owners have not had to do this mod to get higher fsb's and in fact I guess I really never got to tweak and check what my cpu could do with out the mod.
It just seems with these 4300's there are two walls, usually appearing earlier than with higher model C2D's, cause they all have both these walls at some point. One being max core speed, other is max fsb chip speed, vcore seems to affect them both, but seems to help less with the fsb wall. With alot of higher C2D's you'll hit the core max way before, and probably never even see the fsb wall, even on good cooling. I think I read about someone modding mobo to get more Vcc to the chip pins that power the fsb portion, but I don't know how it turned out.
This 4300 seems to be luck of the draw from what I've seen. Some of them seem to hit one of these walls really low, some maybe both walls are low, and others can just OC really good. I can get 3.3ghz out of mine before things get hairy with too much Vcore, and I think it's the chips fsb in my case stopping me. Some people struggle to hit over 3ghz with theirs though, sometimes I think it's setting/user issue, but not always IMO.
As far as the bsel mod, that seems to be a crapshoot too. I think it only really
works on a tiny handful of mobo's. Even the one's where it seems to work, don't always get good results it seems. Is it possible that on some mobo's, the mod may force the rig to run at 1066 strap, but the cpu inside
is maybe still running it's tight timings, so that's why it doesn't truly work sometimes?? Just a wild guess though, I don't know. Personally I'm convinced that a huge part of the typically low OC's on 4300's, is directly related to the 800mhz fsb. The timings are tighter so it makes sense that on average, it would wall lower. Of course then there's the temp thing too, these chips run pretty hot. Mine still runs hotter than both my other C2D's, even after removing the IHS on it. Can't you undo the bsel mod and try it out? If I were you I'd try without it and see what happens. I don't think this bsel mod is doing much on alot of mobo's, even if it says it's working. I can't get it to work at all on my boards, no POST even.
Have you tried playing with your multi a little? If you notice that you always seem to max at around the same fsb, regardless of cpu clock, that would be a good indication. Although, these 4300's can be finicky about multi on boards.