View Full Version : Need help with P4 OCing
Bushboy
09-18-2002, 07:02 PM
Well I decided to try P4 OCing, as I've been an AMD man a while. Someone offered me a lot of money for XP1600+ and Epox 8K3A and it was enough to get me a 1.8a northwood and Abit BD7-II. Now I started overclocking tonight, and managed to get it to 2.4ghz right out of the box. I'm not familiar with P4 packdate things so this is what the heatspreader says:
Sl63X Costa Rica
320 2A053-0789.
Now my concern is memory scores. With a locked 18x, I managed 140FSB or 2.52ghz @1.6Vcore. With the 3:4 ratio, that would be 374mhz DDR right? I have XMS3200 C2, and would have liked to be able to push it far but is it not gonna happen with this CPU? Also can someone tell me if I got a good packdate and any general help or tips on OCing this thing I'm still a bit new to it.
Thanks in advance;)
OPPAINTER
09-18-2002, 09:36 PM
Sorry I can't help help you with Packing dates, I have no clue. You should be able to see what your memory is running with Wcpuid, your probably about right. As far as getting it overclocked higher it's just a matter of good cooling at this point. Your mem will take you as high as your CPU will allow.
OPP
Bushboy
09-20-2002, 10:57 AM
Welll after some burning in I have it running stabely at 2.43ghz with 1.575V. I managed to get it that high with stock voltage but it would fail prime within an hour. Memory is at 180mhz 2-5-2-2 Enhance on @2.6v.
I'm quite pleased with that especially since I haven't been able to get my TEC on it (only have a Socket A Maze 2-1). Screenies and benchmarks will come soon hopefully:D
Creative
09-20-2002, 08:35 PM
I had a 1.8a recently, and it ran at 2.7 in my system for about 3 days before I sold it to a mate. I remember cos I ran it at 150/200 fsb for daily use as a nice round number :D
This was at 1.75 volts IIRC :)
Prod Code: SL63X
FPO Code: L207A249
Version : A78297-003
Pack Date: 05/13/2002
Made in Malaysia
Bushboy
09-21-2002, 03:38 PM
Creative, with a 130CFM delta blowing past my heatsink and northbridge, the temps were significantly lower and with the VID pin mod I set Vcore to 1.75V (1.71 actual because of BD7-II undervolt) I was able to get 150FSB too:D. Here are some benchmarks:
http://www.pc-extreme.co.uk/personal/ID2.7.jpg
http://www.pc-extreme.co.uk/personal/CPU2.7.jpg
http://www.pc-extreme.co.uk/personal/mem400.jpg
http://www.pc-extreme.co.uk/personal/multi2.7.jpg
Hopefully as soon as I get my maze 3-1 I can push this thing further and put a bit more voltage through it:D Is it OK to run say 1.85Vcore in it for a couple hours and still be ok or will it spoil even for a bit of OCing?
Bushboy
09-21-2002, 04:26 PM
Here's my latest @DDR406:
http://www.pc-extreme.co.uk/personal/mem406.jpg
Creative
09-22-2002, 01:36 AM
I use up to about 1.80-1.85 volts while benchmarking and then tone it off to about 1.70 for everyday use. So far none of my cpus have died, touch wood....but I think my IT7 just bit the dust.
I cant get it to boot up without saying the FF error code.....ive done everything imaginable but it just wont post....:(
Nice scores and OC there bud, get some water cooling onto her and she will be happy...:D
I also have a SL63X 5/13/02 1.8a and I struggle to get it over 2.41... (I had it at 2451 the other day now it won't prime at 2451 or 2433 ;/)
This is with the default cooler and core at 1.775v (Which undervolts to 1.71-1.74)
Cheers,
Xe0n
Bushboy
09-22-2002, 01:05 PM
Been at work for the past couple hours and have come up with:
http://www.pc-extreme.co.uk/personal/id2.8.jpg
http://www.pc-extreme.co.uk/personal/mem3200.jpg
Creative
09-22-2002, 05:51 PM
Bushboy thats a pretty damn nice OC there dood :D:D
I dont have screenies of my 1.8A atm cos on a different machine but Ill post some later today....:)
IIRC I could do 2750 @ 1.72 volts or something, that was the MAX i could take here. More volts didnt do anything to her except make her hotter.....:)
I'd watch out with the 1.85vcore. A few days ago I could prime for hours at 2451mhz. The next day I go to my friends lan, and spend 5 or 6 hours playing with my overclocking, showing it off to my mate and seeing how high I can prime it. Anyways next day I go home and go back down to 1.775v (I usually run it at this, so it stays between 1.71v and 1.74v) and I can no longer prime at 2451, it just won't go 2451 anymore in prime.
I've learnt my lesson. But best of luck with your overclocks, I don't like being so negative. :)
Cheers,
Xe0n
Bushboy
09-23-2002, 07:07 PM
This CPU or RAM just does not want to stop. CPU is reaching 50C+ at times and is becoming less stable, which I'm sure the Maze3 coming on wednesday will fix. At 2.86ghz, or DDR424 I had to lower timings to 2-7-3-3 which is why it's not too much better than the previous benchmark:
http://www.pc-extreme.co.uk/personal/mem3200+.jpg
Not bad DDR424 still cas2 at only 2.7Vmem:D I can tell the CPU can go further as it was about to load windows at 162FSB, 2.9ghz but CPU was too hot to be stable enough.
And BTW Vcore is not going above 1.8v. When it goes near 1.8 its for a short time too I want this thing to last!
Can you prime at that speed though?
Cheers,
Xe0n
Bushboy
09-24-2002, 01:01 PM
AT 2.86ghz it failed prime within an hour unfortunately. I was able to run sandra burn-in for CPU and mem and it hadn't failed until I got tired of it and the temps were getting higher than my liking. I think when I watercool it, it should make a difference in stability.
Very nice OC there, Bushboy! :)
Bushboy
09-27-2002, 02:39 PM
Thanks:) But wait, there's more. I got my maze 3, but only to find my dedicated PSU has mysteriously stopped working so now TECing for now. Anyways with some nice cold water the temps were well below 17C and I've been able to push this CPU even further...I'm quite amazed:
http://www.pc-extreme.co.uk/personal/idmbm2.jpg
http://www.pc-extreme.co.uk/personal/mem3317.jpg
BTW anyone know what the system temp censor is for the bd7-ii on MBM? I set it to winbond1 I think and it rebooted:(.
eva2000
09-27-2002, 09:55 PM
nice my older pack date
SL63X
Malaysia
Batch: L208A782
Pack date: 18/5/2002
P4 1.8A@2627 at 1.825v on P4B533
Alpha 8942 with 80mm sunon 50cfm fan
512MB Samsung PC2700@194.5mhz 2.5-3-3
http://www.fileshosts.com/p4b533/2/samsungpc2700/146&194.66/cpuid.jpg
http://www.fileshosts.com/p4b533/2/samsungpc2700/146&194.66/mem-bench.jpg