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Overclocked Pentium 4 3.0 but having temp issues

post #1 of 33
Thread Starter 
I have a Pentium 4 @ 3.0Ghz, 512 DDR @ 200Mhz and an ASRock 775V88.

As I have a FSB of 200MHz and a multiplier of 15, then, to obtain 3.2Ghz I will need to set the FSB to 213/214MHz. And to obtain 3.4GHz I will need to set the FSB to 226/227MHz.

Well, I managed to get the FSB to a max of 223MHz until the windows started booting with a nice little error message in the middle on the screen. Fine. I lowered the FSB to 220MHz and then it booted and now it's running stable.

The only thing here (the usual problem) is the temperature. BTW: even before the overclocking, the temp was usually pretty high, at least it was what my motherboard was detecting (about 50º-70º, in the bios, not even booted to windows).

I was just compressing a file in winrar and Sensors View was detecting about 65º-75º until the compression was over, then it lowered to around 50º (the temp i'm seeing right now).

I have that big stock intel heatsink, 2 small case fans and another big fan on the front. I think it's not normal to have those temperatures before overclocking. Even with this cooling, and right after booting the pc, or at least after a few minutes.

Is it possible that the heatsink may be improperly mounted or maybe it needs some thermal compound? Or can it be that my bios and/or the software are reading the temps inacurately?

Thanks, and btw what speed do you think I might get if I had a normal cpu temperature?
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post #2 of 33
i think its your cooling thats the prob. if you want good temps, sounds like you'll NEED to get better cooling
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post #3 of 33
Thread Starter 
(thanks for the quick reply)

Yeah I though that too, but my processor temperatures before the overclocking weren't normal. They should be below =~40º idle right? (not after overclocking!)
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post #4 of 33
well from what ive figured out on ehre as i aint been here long either that sometimes it can be the hsf. make sure its sat properly etc.

im running a P4 3.2ghz and ive oced it to 3.4ghz atm with standard hsf. my fsb is set to 213 which standard is 204. mine was running at around the 54c so far its stable
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post #5 of 33
Quote:
at least it was what my motherboard was detecting (about 50º-70º, in the bios, not even booted to windows).
Actually it is normal to see slightly higher temperatures in the bios than when you check them in Windows XP.
The bios normally includes a correction to the temperatures (it slightly raises them).
Also, NT based Window versions (WinNT, Win2000 and WinXP) use the "idle task" concept that basically involves sending a special command (HALT) to the CPU. This causes parts of the processor to shut down for a short period of time in order to save energy and reduce thermal loss: http://www.tomshardware.com/cpu/2004...m4_570-03.html
So your temperatures are normally higher before you login to Windows XP.

Quote:
Well, I managed to get the FSB to a max of 223MHz until the windows started booting with a nice little error message in the middle on the screen. Fine. I lowered the FSB to 220MHz and then it booted and now it's running stable.
Try locking the PCI-Express, AGP and PCI bus speeds to 100, 66.6 and 33.3 respectively.
Also get better ram since it's limiting you as it's only PC2300 meaning it's rated speed is 145MHz. I think you're lucky to have been able to reach FSB 220MHz !
If your motherboard supports it get higher rater ram such as PC3200.
** Edit: I just checked your motherboard for you... it supports PC3200 (rated at 200MHz)
For more info check this link: http://www.asrock.com/product/product_775v88.htm
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post #6 of 33
Thread Starter 
Quote:
Originally Posted by ED209
well from what ive figured out on ehre as i aint been here long either that sometimes it can be the hsf. make sure its sat properly etc.
You're probably right, as when I was mounting the Hsf I wasn't 100% sure that it was placed 100% right. I'm always doubtful with these things, so when I buy a new motherboard tomorrow (Asus P5GD1 Pro) I hope it will make more audible "clicks" when I place the Heatsink to be sure .

Quote:
Originally Posted by z_one
Also get better ram since it's limiting you as it's only PC2300 meaning it's rated speed is 145MHz. I think you're lucky to have benn able to reach FSB 220MHz !
If your motherboard supports it get higher rater ram such as PC3200.
** Edit: I just checked your motherboard for you... it supports PC3200 (rated at 200MHz)
OMG! I'm so sorry. I can't believe I did this! look, what I meant was PC3200, not PC2300 (switched the 3 and 2). But thanks for the info anyway. But now that I "have" PC3200 and not 2300 I'm not going to need to upgrade my ram.


Just another question I wasn't 100% sure about too: when I'm doing nothing, just looking at my desktop, can I call this an IDLE state? and can I call a cpu benchmarking or an intensive file compressing a FULL LOAD state?

Thanks
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post #7 of 33
If the temperature is a real concern for you then I would suggest buying a decent HSF, they're a good cheap alternative to water cooling.
post #8 of 33
Quote:
Just another question I wasn't 100% sure about too: when I'm doing nothing, just looking at my desktop, can I call this an IDLE state? and can I call a cpu benchmarking or an intensive file compressing a FULL LOAD state?
Idle state is when you have no background and foreground programs running.
If you press Alt-Ctrl-Del and then go to Task Manager -> Performance you will notice CPU Usage is less than 5%.
I'm not sure intensive file compressing can be a full load state. You need to get programs that specifically load the cpu such as Prime95, HotCPU, SuperPI or Folding @ Home.
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post #9 of 33
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Quote:
Try locking the PCI-Express, AGP and PCI bus speeds to 100, 66.6 and 33.3 respectively.
I think those options weren't in the bios. I could choose for eg. AGP and PCI Voltage "Normal" and "High" but I have only seen that in my friend's bios, which is a lot older than mine(the motherboard).

And I also changed my Ram(or DDR) voltage to 133Mhz, instead of 200Mhz(which is the real speed), and now, with the FBS set to 220Mhz, the memory bus has gone up to 186Mhz. But I don't know if there was any need of lowering the ram voltage.

EDIT: It's not voltage, it's frequency. Thanks to z_one for the correction.
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post #10 of 33
Concerning the decent heatsink I totally agree with t4ct1c47.
Look for Thermaltake Big Typhoon it's an excellent air cooler and it should be around 50 USD if I'm not mistaken.
Intel's stock heatsink is not very good when it comes to cooling the Prescott cores... especially if you intend to overclock your system and you know you might have to raise the VCore voltage to get a stable machine.

Quote:
And I also changed my Ram(or DDR) voltage to 133Mhz, instead of 200Mhz(which is the real speed), and now, with the FBS set to 220Mhz, the memory bus has gone up to 186Mhz. But I don't know if there was any need of lowering the ram voltage.
133MHz is not the voltage. It's the frequency.
DDR (double data rate) ram that's rated 200MHz runs actually at 400MHz (2x200MHz).

Quote:
I think those options weren't in the bios. I could choose for eg. AGP and PCI Voltage "Normal" and "High" but I have only seen that in my friend's bios, which is a lot older than mine(the motherboard).
The P5GD1 Pro you intend to buy does support locking PCI-Express and PCI bus speeds. Check this link http://www.asus.com/prog/spec.asp?m=...20PRO&langs=01 (where it says Fixed PCI/PCIe frequencies under Overclocking Features).
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