P3-750E Posts @ 1100MHz. Runs at 1050. *Question*

[daver343]

My 750E that I've been posting about, runs at 1050, and posts at 1.1GHz. At 1.1GHz it locks just after its counts the ram. AT 1.1, Im at 1.9V and the default is 1.95. Now I've got an Alpha PEP/66 so is going to 1.95 dangerous? Also could it be related to my HD, or NIC ?

Abit BE6-2
P3-750E @ 1000MHz
512mb PC-133 Ram
15gig Seagate Barracuda II
ATI 32mb DDR
SB Live X-Gamer
NIC for DSL
300w PSU
2 cd drives.

[Mr B]

What are your temps, idle and load??

I'm trying to remember if this is a cB0 or cC0...1.95v really shouldn't be an issue with the hsf you have, provided your temps are good and low.

If it's a cC0 chip, hell yeah, go 1.95v. 1.7 to 1.95v is ok. The cB0's with the lower default it's an issue with. With those, if the temps are good, it should be ok.

Mr B

*knew you'd be knockin' on the door to 1.1GHz...=)...didn't think it would be this quickly, though*

[anvil]

Daver has a cBO.

If the temps are low he may be okay with 1.95, several of the high oc's in the 750 database are running that high I believe, but I feel much better with my 1.75 v. at 1.0 gig.

How are the temps and stability at 1050, Daver? Clearly you are not getting much time at 1100 to check that out.

Sounds like you have a really good chip!!

anvil

[daver343]

My temps at 1050 in Windows are around 30-35 Idle. Thats at 1.85V with
ALpha PEP-66 heatsink.

Mr.B its a cB0. At 1.9v and 1.1Ghz it locks just after counting the ram. Im not sure I want to run it past 1.95v. I think Im just gonna run it at 1GHz for another week, then I'll try and see what it wants for 1.1 and if it will do it.

[Mr B]

daver343 (Jun 17, 2001 10:58 p.m.):
My temps at 1050 in Windows are around 30-35 Idle. Thats at 1.85V with
ALpha PEP-66 heatsink.

Mr.B its a cB0. At 1.9v and 1.1Ghz it locks just after counting the ram. Im not sure I want to run it past 1.95v. I think Im just gonna run it at 1GHz for another week, then I'll try and see what it wants for 1.1 and if it will do it.

Good idea. No need to rush into it. I said in the other thread, let the chip come to you. Burn it for a while, and you'll likely get there at a lower vcore.

Lookin' good thus far...well done! Nice chip you got there!

Mr B
*green with jealosy* =)

[Carmine_Paterno]

Sweet overclock man, i just knew that it would go that high. most P3 750s don't overclock very high.

[ken257]

1050 is a very nice OC for that chip! There comes a point when it is not worth it to reach for that little bit higher speed especially if it is important that the machine is reliable and long lasting. I think you may have reached that point at 1050. Just run it the way it is for a while and you may be able to go higher later on. It is easy to go crazy with this hobby and always want to get to the next level but sometimes a little restraint can prevent a lot of trouble.

Of course there is always super cooling, may be able to reach 1200 or 1250 then :)

[anvil]

The p3's are generally described as having reached their maximum around 1.13 gig for some reason, but some p3 1gig's go into the 1250 range. So Daver has a good oc for a p3 in general.

There are several people currently oc'ing the 750 in the gig to 1.1gig range, and the percent in the Database at a gig+ is higher than for the p3 700. I often read that this is not a particularly good chip to oc, but I fail to see why.

My cB0 performs very nearly the same as Daver's, ... Windows runs @ 1035 and 1073. With lower temps, the 1035 is Prime95 stable, but 1073 is flakey. 1110 gives registry errors. As you say stable is best for day in day out operation, so I run at 1000.

Oddly enough, there are still few cC0's oc'd in this particular chip, ... perhaps because few are being sold yet.

anvil

Oh Ken, is that chilled water temp supposed to be read as 17 C or -17 C? Are you running peltier?