Celeron 600 OC Issue

[GreenWolf]

Has anyone else noticed that any program that uses the HLT command crashes (mine turns off the video) whenever your Celeron II (600?) is overclocked? I've been trying different progs that use the command and they all crash. They also all run fine at default speed for the Celery. Any ideas as to why?

I have my Celery 600 OC'd to 903 (SANDRA) @ 1.85 volts. It runs very stable and at a cool 80 degrees F. However, when I add Rain, Waterfall Pro, WinCool, CoolCPU, etc., it crashes. The crash is also strange in that the video blanks out and the monitor turns its self off (DPMS command) and I have to turn the power off on the back panel to get the PC to boot back up.

I'm running an ABIT BX6 (QS bios) with 192 MB of PC100 RAM. The SlotKET is the ABIT model for the FC-PGA and I have a Golden Orb mounted. Video card is a Herc' 3D Prophet 2MX running at default speed with 3.1 detonator driver.

 

[Baek]

Finally someone else with a similar problem...

Mine goes something like this:

As you maybe know Windows 2000 issue the "HLT" command to your processor when there's no
programs/services requesting processing time - HLT (basically "halt&quot tells the processor
to idle (basically rest or halt) for a cycle - in the HLT state, the CPU consumes less power, and thus generates less heat.

On my ABIT BE6 a Celeron 2 600 (cB0) is running fine at 900 (1.95 V). At least in Win ME (I have done many and long stability tests which indicates that - 3DMark2000, Prime95 etc, they all run endlessly). However, if I activate "Win 95/98 Idle Control" (which uses the HLT command) in Hmonitor my Win ME locks up as soon as I copy files and/or start programs. But with "Win 95/98 Idle Control" turned OFF, everything is fine again.

In Windows 2000 I experience the same lockup problems as in Win ME when the "Win 95/98 Idle Control" is ON. For instance, there is a lockup when I start copying a large file from my CD-ROM (DMA swithched ON). But if I first start a CPU demanding program like "CPU Stability Test 6.0" and then try copy the same file again from the CD-ROM everything works fine.

So, I'm just wondering if it's possible to disable the HLT command in Windows 2000 via some registry tweak/settings in Power Management Setup/settings in BIOS etc?

BTW, GreenWolf, have you also tested with Windows 2000? Same results perhaps?

Thanks,

Baek

 

[Vrangel]

Guys you have to try better cooling and/or different slocket.
MSI 6905 version 2.0 slocket is considered the best.
You can run overclocked CPU at lower voltage with it.
GORB isnt the best either. Try PEP66 or ArctiCooler.

I dont use programs you are talking about on my c600@900 (1.85V)
but I am quite sure its a heat related issue.

EDIT: cooler comparison here.
Scroll down there for numbers.

 

[Fardringle]

Vrangel:

Actually, the programs they are talking about effectively 'shut off' the cycles in the CPU when they are idle, causing the CPU temperature to be much lower than normal at idle, so temperature is not an issue here.

The problem is that for some reason, highly overclocked Celerons do not properly interpret the HLT command to shut down the individual cycles, and instead interpret them as similar to power management commands, and shut down the entire system (or parts of the system).

 

[Vrangel]

Thats interesting. My c600@900 freezes in some games
if power management is enabled in BIOS. Disabling it solves the problem.

Still I think better cooling has to be considered.

 

[beat mania]

Is this limited to just Celeron 600 OC'ed? I'm interested, since I've just got a c600 OC to 900 (but I use win98).
It might be a timing issue if it is only for 600 OC'ed.

But I wouldn't know about the cpuidle/rain/all those other programs. I've never had any luck with them and they crash my computer whichever cpu it is running on. So even if it crashes my computer I would just blame the programs =p

 

[Baek]

Thanks for your inputs guys...

Oki, will try and kill ALL 'Power Savings' whatsoever in BIOS and see if that help in Windows 2000. However, the copy I'm using was installed with these settings on in the BIOS. Perhaps more safe to first disable them all and then install. Or?

Vrangel:

Have you tested Windows 2000? If you do, please tell me if you have the same experiences as I had.

Thanks,

Baek

 

[Vrangel]

Win98 only.
Something always gives first when overclocking.
Better cooling is a universal solution.
(I've read about c667@1225 with extreme cooling.)
Chances are good HSF like ArctiCooler will solve your problem.

 

[Temujin]

Try powertweak. I am running a C600@900@1.9v and seti@home. If seti@home is running, temp is 32.5 and no seti is 25. So, powertweak DOES work. Only thing is that the ATI card can't recover from dpms...

I think you can get powertweak from www.tweakfiles.com.

 

[Baek]

Vrangel:

Thinking of getting an MSI slotket since they appear to be the best and thus replace my current one: EPoX S1C S370 Slotket.

Just wondering tho': Have you done the same procedure, i.e. switching from one slotket to an MSI 6905? If so, did you experience that you could lower the voltage and in that case by how much?

Which is the latest version? Saw somewhere that people were talking about 'MSI 6905 Master ver. 2.3'. Correct?

Thanks,

Baek

 

[Vrangel]

Couple of months ago there was a huge thread with slocket comparison.
Someone did great job over few weeks period. MSI turned out to be the best.
Iwill Slocket2 was close second (required slightly higher voltage).

While this thread was running few guys changed their slockets
and were able to push their CPUs higher or run them at lower voltage.

I have Iwill right now but I just ruined its socket while reinstalling GORB.
( plastic leg broke off ).I ordered MSI 2.0 , will have it on friday.

Some time ago I overclocked c533@800 for a friend's system using MSI 2.0.
Its running for six months or so at 1.55V. Rock solid.

PS. I havent heard about 2.3

 

[Baek]

Oki, thanks Vrangel for the info, much appreciated.

Sounds like MSI here we come...

BTW, do you happen to know of any URLs with good reviews and does the slotket have those "plastic support bars" on the sides of the card like the Iwill has (for image: http://bxboards.com/iwill370ii.shtml ). My EPoX has and I found that to be very nice since it provides good stability when you install the slotket.

Thanks again,

Baek

 

[Vrangel]

No its bare . I have plenty of holding contraptions left from previous upgrades.
So it doesnt bother me really. You can go with Iwill safely .Indeed it sits very firmly.
Cheaper too