View Full Version : Celery 433 w/ P2-99 mobo
quantumburnz
12-20-01, 05:03 PM
I have a celeron 433 with the P2-99 mobo and I have been trying to overclock it. For some reason, I can't get it anywhere. I have a ISA card in my computer, I ran out of PCI, would this make me not be able to raise the sus speed to overclock it? Thanx.
yah, ISA cards usually seem to hold back an overclock. The ISA bus just isn't up to the stress!
Try disabling and then yanking the ISA card, see if it helps. IT could also be the motherboard; I don't know about a P2-99. Who is the manufacturer?
quantumburnz
12-21-01, 01:02 AM
It's an asus board, so I think it should be pretty overclockable, I'll have to try to take the ISA out though. Also, I have quite a few PCI cards... dvd decoder card, nic, firewire, sound, would any of these slow it down or make it not be able to overclock do you think? I personally wouldn't think the PCI bus would affect it too much. Thanx.
well, if only 1 of those cards cannot tolerate an overclock, than the whole thing will be a wash. A good OC is held back by the weakest link in your system. Try yanking ALL of your cards, and try it again. Then add them back in 1 by 1 until you find the culprit.
Both ISA and PCI bus speeds will increase a bit when you overclock your system. Older cards really do not like this.
Also- ASUS is the number 1 manufacturer of motherboards for OEMs. They make some great boards, but not all of them will OC. Ford makes Mustangs, but they also make Festivas:) I had a P2L97 from them, great board.
I found a review at Dan's Data (http://www.dansdata.com/P299.htm) of your motherboard. From what he says, it should be more in the Mustang category than the Festiva category, I'll bet that one of your cards or your RAM is holding you back.
BTW, how high were you trying to get the 433 to? Those chips tend to max out in the 500-550mhz area.
NIC cards typically don't like to be overclocked much.
quantumburnz
12-21-01, 02:07 PM
I just want to see how high I can get it... If I can get it to a 500, I'll probably be happy. I have generic RAM too, so I'll try pullin all the cards and maybe 1 of the RAM chips and see what happens. Thanx.
that sounds like a good plan, man! Let us know what happens.
quantumburnz
12-21-01, 05:04 PM
No luck at all... I took out every card except my APG 2x Viper V770 Riva TNT 2 card and my sound blaster 5.1 x-gamer card. I took out one of my ram chips and left in the siemens brand one, and no luck. However, I did notice that no matter what the multipliers are set to, the speed doesn't change. The only thing that changes the speed is the bus speed. When I run the bus at 66Mhz it runs at the 433 clock speed, when I raise the bus to 75Mhz it goes to 466, when I run the bus at 83.3Mhz it posts at 541, but as soon as it gets past hardware detection and starts to load windows, it stops right before where it would start to load windows. So, the multipliers aren't making a difference where they're at... Does this mean anything? Overall, it was unsuccesful, so if you have any more suggestions, let me know. Thanx.
Originally posted by quantumburnz
No luck at all... I took out every card except my APG 2x Viper V770 Riva TNT 2 card and my sound blaster 5.1 x-gamer card. I took out one of my ram chips and left in the siemens brand one, and no luck. However, I did notice that no matter what the multipliers are set to, the speed doesn't change. The only thing that changes the speed is the bus speed. When I run the bus at 66Mhz it runs at the 433 clock speed, when I raise the bus to 75Mhz it goes to 466, when I run the bus at 83.3Mhz it posts at 541, but as soon as it gets past hardware detection and starts to load windows, it stops right before where it would start to load windows. So, the multipliers aren't making a difference where they're at... Does this mean anything? Overall, it was unsuccesful, so if you have any more suggestions, let me know. Thanx.
Multipliers on Intel computers are locked.
Hmmmmm.... When it freezes at the part where loading windows from "Verifying DMA Pool" then it means your at some limit or something is holding you back.
Perhaps I think it is something setting you back.
Try setting your bios a lil more "clocked."
Try changing the L2 Cache Lat. Perhaps your cpu may not get into windows because not recieving enough volts from the cpu. But I may think its the CPU Lat since the old cpus have some serious L2 cache problems.
yah, you can't change the multiplier on most Intel CPUs. you have to settle for raising the bus speed instead. So you can stick your cards back in and try raising the bus speed.:D
The jump from 75 to 83 can be a tough one- try to raise the core voltage of the chip a little bit; sometimes this increases stability. You will also need very good cooling of the chip- the faster it runs, the hotter it runs. Try to keep the CPU temp below 40C if at all possible, that was my upper limit for messing with that type of chip.
quantumburnz
12-21-01, 11:35 PM
Ya, I think all my cmos settings are set up to be clockable... what ever little bit is in there. However, I can't change the voltages really... On the mobo, there's a normal, which is probably like 1.5 maybe? It's the regular setting, then there is test. That's the only way to crank it up, and I don't know what it takes it to, but those are the only 2 settings. I think the cooling is probably ok, but I just can't get it anywhere over 466... any other ideas?
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