Another attempt at 1.5

[Bonka]

Ok. Was in the mood to get it to go at 1.5 again. Loaded Windows and got into desktop no problem. But my senses detected instability. Sure enough, eventually crashed. However, the chip@1.5 was only 40c, so I guess it was idling ok? Amazing thing is that I was at 1.575v. Previous attempts at this speed resulted to resetting cmos even when voltage was upped to 1.6. No problems during boot.

So, with repeated crashes at 1.5 (fsb: 125), I downed the fsb to 120, giving me 1.44, with the voltage left at 1.575. Very stable right here. Idling 1 degree lower at 39c. Feels high to me. Nonetheless, atleast this beater is running stable OCed. My next step is to head to 1.5, then ultimately 1.6. When I get off my butt for once, I will do the voltage mod.

Anyways, is there anything that could be holding me back at 1.5? I feel that without the mod, it should still be able to run at that pace relatively stable? Or am I too optimistic?

Suggestions please!


UPDATE!

Well, after deciding that 1.575v was a bit too much, I dropped it down a notch, to 1.550v. I'm idling happily at 37c. Anyways, to make sure for stability, I ran sandra again for a couple of hours. Temps peaked at 32/40 yet again. Played Quake 3 for about 45min, and all seemed well. Temps were the same after I finished playing. I'll be slowly upping the fsb to 125 within the week, hopefully.

[KILLorBE]

I think you're being too optimistic (which is not a bad thing:p ).

If you ask me your idle temps are too high, a bit more CV might help but then the temps would go up even more, so that's not really an option.

What are your temps under full load?

Better cooling (peltier) got me another 48MHz w/o upping CV, actually I lowered the CV by 0.1V.

[ol' man]

Originally posted by Bonka
Ok. Was in the mood to get it to go at 1.5 again. Loaded Windows and got into desktop no problem. But my senses detected instability. Sure enough, eventually crashed. However, the chip@1.5 was only 40c, so I guess it was idling ok? Amazing thing is that I was at 1.575v. Previous attempts at this speed resulted to resetting cmos even when voltage was upped to 1.6. No problems during boot.

So, with repeated crashes at 1.5 (fsb: 125), I downed the fsb to 120, giving me 1.44, with the voltage left at 1.575. Very stable right here. Idling 1 degree lower at 39c. Feels high to me. Nonetheless, atleast this beater is running stable OCed. My next step is to head to 1.5, then ultimately 1.6. When I get off my butt for once, I will do the voltage mod.

Anyways, is there anything that could be holding me back at 1.5? I feel that without the mod, it should still be able to run at that pace relatively stable? Or am I too optimistic?

Suggestions please!

Well I need 1.7v for 1.5GHz stable. I know pinky needs 1.8v for ~1540MHz stable. Yeah more juice will help you. I thought I told ya that:) Also do you have a PSU that will handle that chip at higher hurtz than 1500. You shoul dhave 300w and also when you are at 125fsb you should have your PCI dividers at 1/4.

Also temps are okay. I am running at 34~35 deg. C at idle and 37 deg. C at load with a room temp of 22 deg. C. Case temps are the same.

[Flu!d]

I'm running @ 1.5 gig totally stable with 1.575 volts and a crappy overburdened AOpen 250 watt PSU....I must defy logic! Running a Malay chip as well....

[Bonka]

Ok. Just back from burning in@1.44 using Sandra. Load temps are 42. Didn't want to budge any further. My system temps were horrendous, going up to 35c. My room temps are in the low 20's, but I continually turn up the heat since it gets cold for me in the basement. I assure you that my heater was off during the process. I was idling at 31/39. I know this needs major work.

I have some crap no name 300w ps, which should be sufficient. If not, I am eventually planning to overhaul for a 350 or 450w enermax. Yes, at 125, I changed the dividers to 1/4. I was reminded when I tried winamp.

Darnit Fluid, I'd yearn if I had your temps, especially with what you have cooling it :beer:

[Flu!d]

Geez Bonka!

I just don't get it! 42 degrees C under load! Here in sunny Australia we are just cooling down after a 35 degree C day and the temps in my computer room are still 30 degrees C....After a full load run my temps 'just' reach 39 degrees C and on a 'normal' day my temps never exceed 35 degrees C and I idle at 30 degrees C 'just'....

How big's your case? I'm running a huge EYO server case (it's almost as tall as my desk!) and I have 1 intake fan and the exhaust fan in my PSU....

I lapped the crap outa my Intel cooler though!

[Bonka]

looks like a 15" incher. Tower closed. When open, doesn't seem to make a difference.

I think I've noted this several times here but I will say again...

NO CASE FANS=(

I am getting no airflow whatsoever in this heap. This will be addressed when I can finalize what I will be purchasing for aircooling. This puppy will eventually run like a savage...I hope.

Being a westcoaster in Canada don't make my current temps look any better either :(

[JetMech]

You have a temp problem of some sort. That chip should be putting out less heat that a PIII coppermine but your heat is equal to my Athlon XP, and it is in an elcheapo case with a 60mm X 60mm rear exhaust fan. My chip is putting out at least 60 watts because it's folding and voltage is set at 1.8. With the amount of room in your case I would look for something like correct contact with Cpu. That HSF should be able to handle chip though I prefer overkill. I only use Swiftechs. The XP has a MCXC370 with a ystech fan. THis is the new one with about 1/2 inch copper base. You will not get to 1.6 with that much heat. My PIII700E@933 only had a load temp of 38C in this same case. I have retired it. Do you have a shim on your chip?

[SwedeDude]

My Celeron 1200 runs stable at 1536 on 1.575 voltage.

When i try 1600 it loads Windows but then i get bsod.

Probably my 250W Aopen PSU I've been told.

I cool it with water.

[Bonka]

Originally posted by JetMech
You have a temp problem of some sort. That chip should be putting out less heat that a PIII coppermine but your heat is equal to my Athlon XP, and it is in an elcheapo case with a 60mm X 60mm rear exhaust fan. My chip is putting out at least 60 watts because it's folding and voltage is set at 1.8. With the amount of room in your case I would look for something like correct contact with Cpu. That HSF should be able to handle chip though I prefer overkill. I only use Swiftechs. The XP has a MCXC370 with a ystech fan. THis is the new one with about 1/2 inch copper base. You will not get to 1.6 with that much heat. My PIII700E@933 only had a load temp of 38C in this same case. I have retired it. Do you have a shim on your chip?

My room doesn't seem to have very good airflow either. Usually, I crank up the heat in my room until a desirable temp. By that time, my system temps will rise. This is how I got 31/39 idling. Right now however, I'm idling along at 30/36 b/c I didn't turn the heat on this morning.

Using the Volcano II, I don't think I can mount the hs incorrectly. When my Celly wasn't OCed, my cpu idled around 30/32c. Seemed pretty good to me. Personally, this fan is just good enough to OC, barely better than the retail intel cooler. I hope better airflow in my case and a better hs/fan on the chip will cool these temps down significantly. Strange thing is, my idle temps stay nearly identical at 1.5.

[ol' man]

Originally posted by JetMech
You have a temp problem of some sort. That chip should be putting out less heat that a PIII coppermine but your heat is equal to my Athlon XP, and it is in an elcheapo case with a 60mm X 60mm rear exhaust fan. My chip is putting out at least 60 watts because it's folding and voltage is set at 1.8. With the amount of room in your case I would look for something like correct contact with Cpu. That HSF should be able to handle chip though I prefer overkill. I only use Swiftechs. The XP has a MCXC370 with a ystech fan. THis is the new one with about 1/2 inch copper base. You will not get to 1.6 with that much heat. My PIII700E@933 only had a load temp of 38C in this same case. I have retired it. Do you have a shim on your chip?

Hey man sweet I like the sound of this cooler. Good they finally made a MCX with a copper base. Bout time.

Fluid you are not defying logic. I could only hit about the same 1500ish with a 250w PSU also. My old celery 1.2 would do 1500MHz on about 1.6v and my old PIII .13u would do 1500MHz also on 1.6v on my st6 with a 167fsb. I even had it do 1575MHz for a short while at 1.6v. I couldn't get as high as I wanted though with a 250w on all three chips. I needed 300w at least.

[Bonka]

Just to update again,

I ran Sandra for almost an hour again, this time, it was a bit more formal. I didn't turn on my heater since yesterday, so there would be no discrepencies in the readings. My idle temps were 30/37. About an hour after Sandra, the highest temps recorded was 32/40. It seemed like under load, it struggled to stay at 40, as it averaged 39 or so. I don't know what to think of it, either my idle temps are high (most likely) or Sandra is reading the temps wrong. In any case, temps are looking better.

[6502kid]

No case fans !:mad:

You should get at least 1 80mm exaust fan, if not more than
that. I think airflow through the case is crucial.

I would also highly recommend one of those 2coolPC fans
with the weird plastic duct on it that blows on your cards
and motherboard.

I probably got overkill on the fans, but I am sure they
saved me an expensive CPU once.

About 2 months ago, my CPU fan stopped spinning.
(MB cpu power header burnt out....)

Not only did this P3-s not burn up, it kept on running
UT for a while. Not sure how long it was out, but
the system kept running. When I got done playing,
I checked the old HW monitor program, and my CPU fan
rpms were at zero. Core temp only went up to 44 or 45c
I think it was.

Dont try that with an AMD.:D

[Bonka]

Hmmm, I'm not sure how good Sandra is for burning in, but I'm just back from encoding 80+ wav files to mp3s. I know encoding requires alot of cpu juice, so I monitored mbm while encoding. Temps again started out at 30/37. After the first 6 files, the temps went all the way up to 32/42. It shot right back down to idle specs after completion. This is definitely NOT the way to find your load temps but they look accurate perhaps?

[Portage]

Just in case....what O/P system are you using? I was using WIN 98FE several months back and noticed a lot of high temps. This cleared up when I installed 98SE. My idle is usually equivalent to ambient temp and load is 30-40 something.

If you are considering a case upgrade I recommend the Lian Li PC-69. Picked it up for $210 C$. I think the 3 fans keeps the temps down a few degrees, but it really helps to bring temp back down faster after temp spike. Other excellent O/C features also - especially if you need to access the mobo frequently.

Side Note
If you are creating a lot of MP3 files you may be interested in AudioCatalyst. It creates MP3's up to 320 from CD and only creates a temporary intermediate WAV file that is deleted after creating the MP3 file.

[Bonka]

At this moment, I'm somewhat interested in looking for a case. However, my pockets at this time won't allow me to buy all the expensive goodies I want without sacrifices. If I get another case, it will probably be another square el cheapo case, although I will be doing mods to allow several case fans going. My current case isn't deep enough to allow a case fan at the top.