OC a 333 Celeron on a ZM6 mobo

[wiresman]

Well, after deciding not to trash my computer (ZM6 mobo, Celeron 333 Socket 370, 64 MB SpecTec PC100 SDRAM, 32MB Stealth III Vid Crd, Creative CDRW) for a new one, I figured I would play with it, and do things I never considered before, thus looking in to Overclocking.
The CPUSoftmenu made overclocking easy but, I could not understand why I couldn't select the 100 MHZ Clock speed with the 4 multiplier, Kept rebooting and saying it was operating at 500 MHZ, which surprised me. I pulled up the Hardware Doctor and monitored the CPU temp and it looked OK. Problem was some programs would hang and puter would freeze.
I realized that even though in user define I was selecting 100 and 4, the multiplier is locked at 5.
So I selected the 83 MHZ clock speed which = 416MHZ
So far i am experiencing no program hangs etc, even played a 1/2 hour of Monster truck madness, CPU temp is @ 52, the limits are shown as 50 - 60 C. I have one fan in my PS and one mounted to the CPU which is on constantly and the case panel is off right now. I was owndering if anyone can tell me why I have probs OC @ 500. I was thinking of getting more memory also, is there any specific kind that would be more OC compatible?
My buddy has a 366MHZ system and has always ragged me because his was faster than my 333, I love that I could do this thanks to your website !!! Thanks in advance, Wires

[Yodums]

Temperature is definitely a problem.

For overclocking the safe zone of a cpu chip would be 45-50 degrees.

I would recommend you lapping the Intel Stock fan, clean all the dust on the fins as well on the heatsink and applying ASII thermal compound to add some contact as the compound(most likely to be a pad) has melted and dried out.

Yodums

[Trap]

Get some air in that case!!
Do a simple case mod
Put two intake 80mm fans on the side of the case,two exaust fans @ the top and get yourslefa decent CPU sooler.
If u need more info about all of that ill post details for with everythin u need e.g. how to do the case mod,which fans to use etc,,,
cheers
P.S. i give u a warm welcome to the forums and the world of overclockin!
Enjoy;)

[wiresman]

Well, I am certainly glad someone let me know that the operating temps set on my Hardware Dr. were too high, 54-60 C,
I have adjusted them to 45-50 C. I also cleaned my fan blades and the heatsink of dust, man there was quite a bit there. i am looking for fans to use out of older units lying around in my closet right now, I priced fans at radio shack, $20 ea. Yes there was a pad between my CPU and heat sink. I got some heatsink compound, it is Silicone-Base though, I thought I read somewhere on here about Silver paste?, where do you get that. I am using the Silcone compound now, My CPU temp has been @ 43-45 C for over 2 hours now still with stock cooling, I checked out some of those case-mods, and some look WILD! I have plenty of room in my case to add fans. Looking forward 2 replies!

[wiresman]

Took a 3.5 inch fan from a PS on a Compaq I had, temporarily mounted it across from CPU cooling fan feeding cooler air to it. I watched the CPU temp drop from 46.5 C down to 36 C and system temp dropped to 30C. I dont know what you mean by "lap" the CPU cooling fan. Please explain.

[deez]

You should be just fine with the silicone thermal compound...thats all I ever use. Nice job lowering your temps...Welcome to overclocking if you haven't already discovered its an addiction :cool:

Have you increased voltage at all? Increase voltage in slight increments to improve stability as long as your temps are ok.

Lapping is basically sanding then smoothing the surface of a heatsink if it is not perfectly flat to get the best contact with the CPU.

[wiresman]

:cool:
Well, went to the nearest PC store, got me another case fan, other one was too loud although effective. mounted it in the lower fornt of the case after cutting out restrictive hole mesh. Also while I was there saw a Cooler Master ( I know according to posts they are not that good), the only kind they had available . It is a DP5-6I11A. The instructions showed two types, one with a red peel off ( they called it the thermal pad type) and one with a clear removable cover and they said it was grease, althoug it seemed somewhat stiff to me. I hadn't got the post on the Silcone grease yet, or I would have replaced it with Silcone grease. It does not say what kind was shipped with the cooler.
Anyway, with the case closed now, I have overclocked to 500MHZ and there seems to be no hangs anymore, Even played a round of MOnster Truck Madness. There seems to be slight flicker in my display now,or maybe I am just paranoid now.
The CPU temps ranged from 36 - 38.5 C. System temp is 32 C.
I guess I could provide more cooling if the CPU begins to rise any as the case cover feels somewhat warm in spots.
Last time I was clocking @ 500 MHZ, CPU temps hit 52 C w/ stock everything. I know it seems silly to be happy about OCing a 333 to a 500 MHZ, but I feel proud of it. Thanks for all the replies !
I am curious, when does a CPU have the most load on it? Gaming?

[TUK101]

Yes, gaming is one of the hardest things on a comp, especially the newer games that are out now. Racing games and first person shooter games are very graphics intensive and put a huge load on the comp. Getting the cooler air into that comp is the best thing to do for getting a good overclock. I have a 366 Celeron that will run all day at 550 with the stock hsf on it, but also have a couple of other fans pushing in cooler air, and pulling out the hot air. Test that comp out playing a good racing game and see how it fairs after a couple of hours of playing. If it freezes up, then more cooling is needed. Good luck and good job on the overclock.:beer:

[deez]

Originally posted by wiresman
[BI know it seems silly to be happy about OCing a 333 to a 500 MHZ, but I feel proud of it. Thanks for all the replies !
I am curious, when does a CPU have the most load on it? Gaming? [/B]

Nobody here thinks any type of overclock is silly...believe me. I'm always happy to squeeze anything extra even if its only 1Mhz

Download Sifott Sandra www.sisoftware.co.uk and run the burn-in wizard with only CPU benchmarks selected. This will put it under full load

[wiresman]

I downloaded CPUBURN already, ran it for 1/2 hour at most. Hard for me to wait that long, "a watched pot never boils". Another thing, I shut this PC down every day, onoly on when I used it, which is INternet browsing, Graphics Work, and some games. So should I run the burn-in program for only as long as I would most likely use the computer at any given one time?

[deez]

run the burn in for 1-2 hours then check your temps immediately after or with Sandra run the burn-in for about 100 loops

You can also loop the UT splashscreen or play a graphics and CPU intensive game such as UT for a couple of hours