Did I do something wrong or just my bad luck with SL6RZ

[MulLa]

Hi all

Seeing all the good luck you guys are having with the 2.4B SL6RZ I finally can't resist the temptation and went out and picked up one for myself. Unfortunately I was only able to hit 155FSB :brokenheart: which is only like ~2.78Ghz and that's with 1.575V to get it stable. I even got one of those chips that haven't got a voltage written on the surface. Oh well.... Here's my spec.

P4 2.4B SL6RZ
Asus P4PE
512MB Corsair PC3200

The thing is I was able to get my 1.8A B0 stepping up to 2.66Ghz!! Oh well I suppose overclocking depends on luck as well.

Oh and any input would be appreciated too.

 

[Thor86]

Originally posted by: MulLa
Oh well I suppose overclocking depends on luck as well.

Yep.

I went through 4 processors. You can try and perhaps play around with the memory settings, and disable turbo in your motherboard bios to make sure your memory/settings aren't holding your oc back.

 

[DAPUNISHER]

What is your PCI/AGP set at? I ask because our board has a bug with the lock and if at the default 33.3/66.6 it isn't actually locked so upping it a couple notches will kick it in and allow higher overclocks. BTW, since the lock failure normally doesn't show symptoms till 150fsb when the on-board sound usually stops working and you had the 1.8A@148fsb that would explain why you weren't affected by it. If this issue has been addressed then it's back to the CPU being unspectacular.

 

[MulLa]

Thanks all for the input.

Yes I've tried memory settings and it's well under the spec for the corsair PC3200 that I have so I don't think that's holding me back. Also tried the "optimal" and "auto" setting instead of the "turbo" that it was on.

Thor86: you mean you tried 4 SL6RZ before you had a good one?

DAPUNISHER: Interesting so there's a fault with the P4PE AGP/PCI lock? So what you suggest that I do. Sorry I didn't quite understand your post. So I should up the AGP/PCI to slightly above 66/33 lock then bring it back down again?? The failure is more like unable to boot into windows at anything above a 155FSB.

Also how did you know there's an error with regards to the P4PE's inability to lock the AGP/PCI? Through software? SANDRA? wCPUID?


Thanks

 

[Cerberus8080]

The "cheap" B0 stepping P4's have a limit of 150-160 FSB.
If you get yourself a SL6EF or SL6DV which are C1 stepping then you
can go up to about 180FSB.

 

[DAPUNISHER]

DAPUNISHER: Interesting so there's a fault with the P4PE AGP/PCI lock? So what you suggest that I do. Sorry I didn't quite understand your post. So I should up the AGP/PCI to slightly above 66/33 lock then bring it back down again?? The failure is more like unable to boot into windows at anything above a 155FSB.

Also how did you know there's an error with regards to the P4PE's inability to lock the AGP/PCI? Through software? SANDRA? wCPUID

P4PE AGP/PCI locking issue

 

[MulLa]

Thanks DAPUNISHER for the link. So are you using the 'workaround' method as mentioned in the link? Still haven't finished reading that really long post. Hm... but still I think I've got an underperformer since it won't even start up blank screen altogether no beeps when I set it to 170FSB last night. Still at work now can't wait till I get home and try again.

 

[MulLa]

Ok now I'm at home. Tried the 'workaround' method in an attempt to really lock down "AGP / PCI" but it didn't help at all. I did manage to get it booting up at 3.06 but it wasn't stable prime95 would crash with errors besides I have to give it 1.575v which equates to something like 1.65v under Asus overvolting.

I guess I should give up on this chip now. Put my trusty old 1.8@2.66 back in and hopefully I'll be able to sell this 2.4 to someone.

 

[maxSe]

Originally posted by: Cerberus8080
The "cheap" B0 stepping P4's have a limit of 150-160 FSB.
If you get yourself a SL6EF or SL6DV which are C1 stepping then you
can go up to about 180FSB.

SL6RZ IS a C1 stepping. It's just that there's no "guarantee" in oc'ing. I think there's a someone here that has a B0 2.4B that he ran @180fsb as well... Just luck of the draw...

MulLa, sorry to hear you're having not so great success... Think of it this way... now you have a legit reason to grab one of those SL6S2 2.53's...

 

[wicktron]

Originally posted by: MulLa
Hi all

Seeing all the good luck you guys are having with the 2.4B SL6RZ I finally can't resist the temptation and went out and picked up one for myself. Unfortunately I was only able to hit 155FSB :brokenheart: which is only like ~2.78Ghz and that's with 1.575V to get it stable. I even got one of those chips that haven't got a voltage written on the surface. Oh well.... Here's my spec.

P4 2.4B SL6RZ
Asus P4PE
512MB Corsair PC3200

The thing is I was able to get my 1.8A B0 stepping up to 2.66Ghz!! Oh well I suppose overclocking depends on luck as well.

Oh and any input would be appreciated too.

What are the other markings of your SL6RZ? If it's from Malaysia, and the FPO-BATCH starts with a Q, it's no wonder you got a horrible overclock. The great SL6RZ's are from Costa Rica, with an FPO-BATCH starting with 3, the most famous of which being a 3252xxx-xxxx.

 

[MulLa]

Hi again

Well thanks everyone for the support.

maxSe: Yer good excuse too eh... but have to save up first! Otherwise I'd be living on bread and water for the next month!!!

wixt0r: No actually it's from Costa Rica. Yer I was surprised too the batch is 3306xxxx which should indicate the 6th week of 2003 right? It's so new as well. Oh well just my luck I suppose. :brokenheart:

Anyway thanks again to all that helped and replied to this thread!

 

[wicktron]

Interesting. My cousin's box has a 3306 and it hits 3.4GHz. :Q

 

[MulLa]

wixt0r: Stop you're breaking my heart!! :brokenheart: You make me wanna cry I hate you.

Hehehe j/k.

 

[maxSe]

Originally posted by: MulLa
Hi again

Well thanks everyone for the support.

maxSe: Yer good excuse too eh... but have to save up first! Otherwise I'd be living on bread and water for the next month!!!

Bread & water??? At least you can afford both~