Well I'm impressed

[Myhre]

I overclocked a work rig that I built for one of my parents a while back just to see if I could push it at all. Here is the setup. P4P800 mobo, 2.53 533FSB non hyperthreading P4. 1 512 stick of pc2100 266mhz generic ram. Cpu being cooled with a generic fan that I picked up for 5 bucks at a hole in the wall computer repair shop, since I had already used the stock fan for another rig. So I decided to mess around with it again today since I'm house sitting for them while they're out of town. I was able to pump the fsb from 133 up to 170 at 1:1 with a sad little stick of 266mhz ram. So now a [email protected] and 266@340mhz ram. Not bad I'd say, especially when my temps didn't go up but by about 2C and I didn't even have to raise the vcore. If this proc were hyperthreading I'd definately throw it in one of my rigs and really see how far I can take it. Maybe I'll throw it at my prommie Good fun.

 

[Vio1]

lookin good.

 

[Airbornederekc]

nicely done

 

[Myhre]

Well I ended up throwing some generic PC3200 PNY Optima memory with BRAVO chips at the system. I pushed the FSB up to 180 which would put it at 3.42ghz and I was a little disapointed to see that it failed to even post. Well I brought it back down to 175FSB and was quite suprised to find that it would not even remain stable at this speed, which was odd since it ran fully stable at 3.2ghz with PC2100 memory. I looked in my bios and noticed that I could actually run the memory at 4:5, not to be confused with 5:4. Which means that I would be running my memory out of spec on the "High side". I then pushed the FSB back up to 180FSB and voila! It remained fully stable and still at "auto" vcore. Well that's where I'm at right now. I'll bump it some more in a little bit. I wonder if it could hit 200FSB on air(Put's pinky up to mouth in full Dr. Evil spendor)

 

[Myhre]

Well I was maxxing out my PC3200 generic ram so I had to pop in a dimm of my 3200XLpro. I hit 185FSB without batting an eye. This is crazy. Right now it's runnning at 3.5ghz.....a [email protected]. Wow.

 

[Mortis03]

looking good, i can only hope I get simmilar results out of my cpu

 

[bojangles]

Jeez its a "platnium" sample. Good work, like mortis said, I can only hope I can push my new CPU like that. Oh ya mortis, welcome to the forums.

 

[Myhre]

Looks like it topped out at 190FSB. My ram still my be the limiting factor, but I doubt it. I'm still not sure why it won't work whenever I drop the memory to 266mhz. I think I'll throw it on my p4p800-e dlx board since it has more memory options.

 

[stan03]

is this prime stable, or are you just seeing what you can boot at.

 

[Myhre]

prime stable through the night, so primed for about 9 hours without errors

 

[stan03]

wow... thats a nice chip you got there

 

[Myhre]

It'd be nicer if it were a 800fsb chip instead of 533....what a waste.

Edit: Anyone know what the average overclock on the 533fsb chips is? I think this overclock is pretty good, but then again this is the first 533fsb chip I've oc'ed. Know if many where ever able to hit 200fsb? I wonder what this oc would be relative to a 800fsb chip. Raising 57fsb on a 533 is probably around 83fsb for a 800 chip if overhead is taken into account? It still kinda blows my mind. I think I'm gonna pull the 2.53 out of the rig that I built for my sister and check it out while I'm out here for the week.

 

[Mortis03]

bojangles-

Thanks for the welcome. I've been lurking about for a little while and figured it was time to post.

 

[tikki50]

Is that a northwood? I cant get mine past 3.16 (stable) I cant get it to 160fsb. It might be my ram timings I should probably set them to stock and disable all speed enhancements like turbo. Did you say you set the voltage to auto? and it still held that FSB. Wow nice chip. I might have to mess with mine a bit mroe but I hate it when it doenst post, I feel like I damaged the chip all the time. Oh well its a 2.53 not the top of the line chip anymore. I guess it can get beat up a bit

 

[Myhre]

Is that a northwood? I cant get mine past 3.16 (stable) I cant get it to 160fsb. It might be my ram timings I should probably set them to stock and disable all speed enhancements like turbo. Did you say you set the voltage to auto? and it still held that FSB. Wow nice chip. I might have to mess with mine a bit mroe but I hate it when it doenst post, I feel like I damaged the chip all the time. Oh well its a 2.53 not the top of the line chip anymore. I guess it can get beat up a bit

Yes it is a northwood. Yeah I havn't taken it off of auto voltage yet. And remember I'm running it on a board that handles 800FSB P4's with a 865chipset so that might be helping a little. One thing that I still find a bit odd is the fact that it won't run when I run the memory at 1:1 at high fsb but it will run when I put the mem at 4:5 which actually makes the memory clock higher. Whereas my CPU is running 185mhz, my mem is running around 235mhz, but it won't run 185/185....totally wierd.

 

[tikki50]

HUmmm that might be my problem I have always left my mem settings on auto which kept them in sync 1:1 I will have to try the 4:5 ratio tonight and I might even set the voltage back to auto. Thanks for the insite. I hope I can break 3.2 tonight, OMG Im a geek!

 

[Myhre]

I'm gonna try for 200fsb here in a few minutes as soon as I get my prommie setup for the comp.

 

[Imperial]

Keep us posted

 

[(HR)Titan]

I'm gonna try for 200fsb here in a few minutes as soon as I get my prommie setup for the comp.

200 fsb is realy big score
i wish u luck , but i think its mission imposible

 

[Myhre]

Okay so I've got it on my phase change right now, and I can get it to post and boot to the Windows welcome screen at 200FSB, but it locks up. All I care about is getting a screenshot at 200FSB with cpuid. The memory is really acting wierd. It seems that once I go over 200FSB it either likes to be set at 400mhz in the bios or 266mhz in the bios, and not the middle one. I've got it stable right now at 195fsb. I'll try and figure something out.

Edit: just ran pcmark 2004 and got 4234marks at 3.61ghz. [email protected].

2nd Edit: I'm also running the mem at 2-3-3-5 at 190fsb.