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Quick HSF question

K

knyghtryda

Weaksauce
Joined
Mar 27, 2004
Messages
94
I'm currently running a thermaltake Volcano 7+ on a P4B 2.53 that I want to OC. Its stable at 3.2, but I'm wondering if whats holding me back is the HSF or the chip. I (hopefully) took memory out of the equation by putting the divider at the 3:2 for now (its pc3200 no-name-brand for now). I don't trust the temps from the board (p4p800... 37 idle, 46 load. They look a little low). Is it worth investing in something like a sp-94, MCX-478 or the like?
 
Originally posted by knyghtryda
I'm currently running a thermaltake Volcano 7+ on a P4B 2.53 that I want to OC. Its stable at 3.2, but I'm wondering if whats holding me back is the HSF or the chip. I (hopefully) took memory out of the equation by putting the divider at the 3:2 for now (its pc3200 no-name-brand for now). I don't trust the temps from the board (p4p800... 37 idle, 46 load. They look a little low). Is it worth investing in something like a sp-94, MCX-478 or the like?
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It may very well be worth looking into better cooling but my Asus board (check sig) reads my temps fairly well, and I'm not overly concerned with your reading being THAT off.....not to the point of masking a problem anyways.

It's entirely possible that you have simply hit a limit with your CPU also, have you ever had it clocked higher before? Have you done any playing around with the voltage? Let us know.
 
The voltage can be holding you back from getting that extra MHZ, The HSF won't hold the chip that much from overclocking allot.
 
Originally posted by Mikesta
The voltage can be holding you back from getting that extra MHZ, The HSF won't hold the chip that much from overclocking allot.
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Not with temps like that, no.....but the way you said it you make it sound like it could never be a problem.....and not so. ;) The voltage is the most likely culprit but guess what.....more votage = more heat = better HSF needed.

If someone is running their computer at stock speeds, it is less sensitive towards heat, and 50-60C max load might still be fine. However, do any reasonable amount of overclocking and suddenly you're lucky to get any kind of stability at all. All I'm saying is that the more you overclock, the cooler you've gotta keep the thing, so you might end up with a different HSF either way. ;)

That Volcano 7+ is nothing amazing anyways, i used to have one on my 1800+ AXP (back in the day) and it honestly had troubles keeping THAT thing comfortably cool with nice case airflow. I'm afraid I just can't say anything positive about that cooler.....but give it a shot.
 
Voltage is is 1.65, bus is at 167. If i do 168 or higher, strange things start to happen in benchmarks. This actually puts my speed at about 3.17Ghz.
 
Originally posted by knyghtryda
Voltage is is 1.65, bus is at 167. If i do 168 or higher, strange things start to happen in benchmarks. This actually puts my speed at about 3.17Ghz.
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With something so touchy like that happening I'd be more proned to say that it's either a voltage issue, or just a limit with your CPU. Either of them are completely possible, but usually if it's a heat issue it will aquire itself along the way, and not simply APPEAR when you go up one more FSB.
 
Originally posted by MontyAC
Your chip probably maxes out at 167 fsb. not too bad for a b chip.
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I wouldn't feel to bad if this's the case dude, clearing 3GHz is always nice. Kudos for resisting to buy into the canterwood craze and for sticking with your trusty 2.53 northy. :cool:
 
hehehehe... 2.4c @ at 3.6 on air sounds very tempting however. If only resale value on my 2.53 was higher... :rolleyes:
 
Originally posted by knyghtryda
hehehehe... 2.4c @ at 3.6 on air sounds very tempting however. If only resale value on my 2.53 was higher... :rolleyes:
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Yeah, if only. Have you got someone who will sell you a 2.4 that'll DO 3.6GHz??? I'd opt to pick it up if I were you, but only if you're GAURANTEED that clock.
 
i'll see u mine. its an M0. my ram keeps me at 3.6. but at stock voltage.


j/k, i love this little sucker.
 
Originally posted by frag85
i'll see u mine. its an M0. my ram keeps me at 3.6. but at stock voltage.


j/k, i love this little sucker.
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Nice stuff indeed.....that was one kick ass chip.
 
Originally posted by cornelious0_0
Nice stuff indeed.....that was one kick ass chip.
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what i run at most of the time, helps out a crap load when encoding video, and loading apps.

voltage is 1.525(stock) in bios. if the m0 is truly a P4EE then i should be at 1.6 right now..... maybe my MB is terribly wrong.
newoc.gif
 
I got my chip in yesterday.....and the stock voltage written on the box is also 1.525v so you're not crazy. ;)

'cus of the horrible voltage flux on my mobo I have to set the voltage about 1.5v higher then I actually need so that when it drops down (under load) it's still high enough. As a result, I have to have my voltage stuck at 1.75v in the BIOS so that it stays just BARELY above 1.6v and I can sit at 3.5GHz.

The higher you clock it, the worse the drop off gets, and the more sensitive it is. I have had it boot up just fine at 3.7GHz but the mere loading of startup apps was enough work to drop the voltage below what it needed.....and it rebooted. :(

I'll have the droop mod done in the next two weeks and getting my 120mm 85cfm intake installed over the Zalman though so things will pick up. I'll be shooting for 3.7GHz at first, and higher if my temps are fine.

Here's what I was able to grab before she gave out:

3.gif


Please ignore the voltage, as I said.....I have to set it much higher then needed. The mobo also idles a little high, resulting in the shown 1.776v, up from 1.75 in BIOS.

What the droop mod is basically going to do is still make it idle high, but then under stress it sits at EXACTLY what you set in the BIOS. Once it's all said and done I'll see how high she'll clock at stock voltage but I'm more interested to see where this thing'll go when I can actually have it AT 1.75v. ;)
 
Originally posted by cornelious0_0

'cus of the horrible voltage flux on my mobo I have to set the voltage about 1.5v higher then I actually need so that when it drops down (under load) it's still high enough. As a result, I have to have my voltage stuck at 1.75v in the BIOS so that it stays just BARELY above 1.6v and I can sit at 3.5GHz.

The higher you clock it, the worse the drop off gets,
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is the drop caused by a voltage flux? cause my voltage fluxes but not under load, and not by any segnificant amount.
 
Originally posted by frag85
is the drop caused by a voltage flux? cause my voltage fluxes but not under load, and not by any segnificant amount.
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Yes, the drop is because of the flux on my P4C800-E. The funny (horrible) thing is that it flux's when it's under load AND when I'm sitting at idle. With the voltage set to 1.75v in the BIOS it will idle at up to 1.78v but it flux's between 1.78v and 1.68v.....when I'm just sitting on my desktop. Under load it immediately drops below 1.7v and jumps back and forth between 1.68v or so, and 1.62v at the lowest.

As you can see this is a major problem, and something that is REALLY limiting my overclocking. I have to set the voltage .15v higher then what I actually need to stabalize any kind of overclock. You can see how this "method" would soon grow uneffective, 'cus I'm sure as hell not gonna ramp it up to 1.85v and have it idel at 1.9v.....just to get it stable at 1.7v under load. :rolleyes:

I can hardly wait to get the droop mod done though, I'm goin' for that magic 1GHz overclock baby!!! It'll post at 3.8GHz already.....and what I'm dealing with is FAR from a temperature issue. ;)

I'll keep you guys posted.
 
my voltage in bios is never what the bios says its running at or a motherboard monitor. i.e. bios says 1.525, bios monitor says 1.55, monitor says 1.55.

in my other p4p800 the all the voltages would flux all the time, +/- ~5%. on this p4p800 they stay within 3%, and occationaly the 3.3v fluxes +/- 4%
 
A little update on my OCing endevours. I'm probably not going to change the HSF anytime soon, even though that SP-94 for $35 is very tempting... I found that it was the crappy memory I had which was holding me back. I bought some ADATA PC4000 (really really cheap and really really fast) And now I'm doing 3.27Ghz (172 fsb) and still looks like it can do more :) I haven't run a long term prime95 yet, as I think the fan noise of my Volcano on high would drive my roommates nuts. Yeah, it sucks being in a dorm... but I've been playing Far Cry and UT2004 on it for a few hours, and everything seems to be stable as a rock. Now to push it some more...
 
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