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4.08 Ghz Stable on Air?

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November 20, 2008 1:49:49 AM

I was screwing around with my kids PC (The Green Monster) and for kicks I bumped the CPU from 200Mhz to 240Mhz with a 1:1 Dram ratio and the CPU showed 4.08 Ghz! I played some random desktop game for an hour with the CPU running between 55-75% with no Problem on a decent aftermarket Heatsink & fan. He has a P4 3.4Ghz with a 2mb Cache, I dropped it back down to 220mhz (3.74Ghz) and left the Dram @ 1:1 to see how it works for a few hours with him playing.

Is the 3.74Ghz a good Overclock or should I try to let him run @ 4.08Ghz for awhile and see how it goes?

More about : ghz stable air

November 20, 2008 2:17:12 AM

toledo_speedo said:
I was screwing around with my kids PC (The Green Monster) and for kicks I bumped the CPU from 200Mhz to 240Mhz with a 1:1 Dram ratio and the CPU showed 4.08 Ghz! I played some random desktop game for an hour with the CPU running between 55-75% with no Problem on a decent aftermarket Heatsink & fan. He has a P4 3.4Ghz with a 2mb Cache, I dropped it back down to 220mhz (3.74Ghz) and left the Dram @ 1:1 to see how it works for a few hours with him playing.

Is the 3.74Ghz a good Overclock or should I try to let him run @ 4.08Ghz for awhile and see how it goes?



Question, "he", who? You bumped what on the CPU to 240Mhz? Some random desktop game is a "STANDARDS" test where you come from? No problems are a good thing where I live. A good overclock should put a big grin on your face, go into the bathroom and look in the mirror..
November 20, 2008 2:39:24 AM

"He" is my Son (see the first sentence) and no I didn't test it to make sure it was stable at full load. I can't imagine a P4 running @ 4.08GHz would be stable for any length of time. I am not even sure 3.74GHz on air is very smart. I bumped up the FSB from 200MHz to 240MHz and changed the Dram multiplier from 2:1 to 1:1.
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November 20, 2008 2:51:10 AM

So what's the point of your post? If it's prime95 stable and the temperatures are good, then keep the overclock. If not, then don't. Simple.
November 20, 2008 2:54:40 AM

test for stability. Download and run Prime95 for roughly 12 hours, and if it gets no errors and the temps stay within reason, then yes the overclock will be stable, if not then it wont be.
a b à CPUs
a b K Overclocking
November 20, 2008 2:55:32 AM

You should run prime 95 on it to see if it's stable at that speed. Well, even if it's stable the CPU may throttle if it gets to hot so you may want to watch those temps while it goes through prime 95. You can get a P4 to run stable at that speed without throttling, but you need to have good case ventilation.
November 20, 2008 3:22:28 AM

"He is my son". "My kids computer". Yes I saw your first sentence, nothing after it made any sense. I tried reading your entire post without laughing, sorry, I had a smile when I checked my bathroom mirror...Yeah, don't throttle that P4... and take an ice pick and ram some more holes through the side of your case for better ventilation...
November 20, 2008 3:57:02 AM

I dun like prime 95 -.-' orthos ftw! :D 
a c 172 à CPUs
a c 197 K Overclocking
November 20, 2008 4:20:20 AM

I also like Orthos - for a dual core CPU. I also like Prime95 for quad core CPU's
a c 172 à CPUs
a c 197 K Overclocking
November 20, 2008 4:21:16 AM

I also like Orthos - for a dual core CPU. But I like Prime95 for quad core CPU's
a c 172 à CPUs
a c 197 K Overclocking
November 20, 2008 4:22:03 AM

Oops.
November 20, 2008 10:33:02 AM

marcellis22 said:
"He is my son". "My kids computer". Yes I saw your first sentence, nothing after it made any sense. I tried reading your entire post without laughing, sorry, I had a smile when I checked my bathroom mirror...Yeah, don't throttle that P4... and take an ice pick and ram some more holes through the side of your case for better ventilation...


Your avitar seems to be pretty accurate; your posts are pointless and you have your head up your ass.

I'll give prime95 a shot and see how it goes, I always thought 4+GHz was only stable on water.
November 24, 2008 11:57:21 PM

I knew it was too good to be true, Prime 95 quickly burst my 4.08GHz bubble and 4.0GHz as well. I must say that 3.91Ghz is stable and quite an improvement over the 3.4GHz stock speed. Not to bad for my first air cooled home built system and I am still running Ram @ 1:1.
November 26, 2008 3:37:59 AM

3.9GHz is pushing it enough as it is.
But that's pretty amazing man, even on air.
November 26, 2008 4:07:22 AM

how stable though... have you tested 8 hours? some cpus have been known to do 7 hours 50min but then crash at 8 hours so...
November 26, 2008 2:36:52 PM

I'll run Prime95 tonight and check it in the morning but it had to be real close to 8 hours last time.
November 27, 2008 1:05:20 AM

What test do you normally run? My PC failed the large file test after an hour but passed the blend test fine after 8 hours.
November 27, 2008 3:04:40 AM

small ffts. If it failed large ffts then it will almost defenatally fail the small ffts, but go ahead and test it.

The small ffts pretty much only tests the cpu, so it is still possible that the pc could be unstable due to the ram after the small ffts test. To check if the ram is stable run memtest 86+ for a few hours, and if you are error free then you are good to go.

Cheers
November 27, 2008 4:09:16 AM

small ffts for sure.
November 28, 2008 1:52:41 AM

Real quick, my P4 supports HyperThreading but I should still just be testing with one thread instead of two correct?
November 28, 2008 3:38:39 AM

no idea, before my time :p 
November 28, 2008 4:22:46 AM

not 100% sure but that sounds right to me.
November 29, 2008 2:17:13 AM

Running one thread on blend test @ 4.0GHz fails after 45 minutes but is stable for 12+ hours @ 3.91GHz. I might try a better heatsink/fan/thermal paste combo and see if I can't get 4.0GHz to pass.
November 29, 2008 2:53:43 AM

try small fft's. blend is more RAM-stressing oriented... small fft's usually uses either no, or next to no ram so...
November 29, 2008 3:18:50 AM

Fine, I will try Small FFT's and see what happens...................
a b à CPUs
November 29, 2008 4:03:58 AM

I'd run 2 threads. I was running 8 threads on my Nehalem quad earlier when testing - I figure that the whole point is to load it as heavily as possible, which is achieved with the extra threads.
November 30, 2008 2:12:42 AM

Screw that, it's not like my kid is running Crysis on a 60 inch Plasma. 3.91GHz is stable on one thread running Small FFt's for 8+ hours so I'm calling it good for now. I might upgrade the heatsink & fan later on to see if I can't get 4GHz stable but untill then.......
November 30, 2008 7:48:23 PM

so...what is your major problem...
Anonymous
a b à CPUs
a b K Overclocking
November 30, 2008 8:59:58 PM

his problem is he spent 100$ when he didn't need to

You should psych ur kid out with a red LED fan... be BOOYA!!! I LIKE RED MORE!!! hehe
November 30, 2008 9:13:07 PM

well if you dont want to spend 100 bucks on a led then get a quality heatsink that doesn't have any led's in it (s1283). To spend that much money for a light is...well..pretty worthless
November 30, 2008 10:18:19 PM

The heatsink was $66, the rest was made up of a $6 cleaning kit, $17 for the jumbo tube of Artic Silver & shipping for a $99 total. I am in the process of juggling 6 or 8 CPU's between systems and I really need the cleaner and paste; plus I can use the old heatsink on a stock system that I would have needed anyway.

So for $30 more then the S1283 I got the kid his Green LED and one of the best air cooler's on the market. I'll be suprised if I can't get 4.0GHz stable with this system.
November 30, 2008 11:45:50 PM

uh....so again whats the problem??
November 30, 2008 11:59:35 PM

Overclocking is like crack, I just can't stop doing it. This morning I was going to leave my kid's PC alone and by the afternoon I had talked myself into a $70 heatsink!
December 1, 2008 1:16:52 AM

So the problem is your addicted? :p  well at least admitting it is the first step :D 
December 1, 2008 2:25:03 AM

When did the Zalaman 9700 become "one of the best heatsinks on the market" ??

I'm seeing many blown chips in this guys future.
December 1, 2008 2:47:37 AM

lol, yea the zalaman really isn't very good now a days considering. If you want a good heatsink get the s1283 with the retention bracket, cheaper and much better cooling. However if you have money and want a green led then i guess this works just fine ;) 
December 1, 2008 4:22:28 AM

yeah you could have got a 1283 (red scorpion has cool led's i have one!) and a $7 green led case fan like me :p 
December 1, 2008 4:22:05 PM

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I am using the S964 which is the 92mm 4 heat pipe model with the bracket and is stable @ 63c max 100%load during intel stress test which is the best stability test for the new 45nm C2D IMO here's more info on that IntelBurnTest v1.8
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----------------------------
The original. All others are copycats.

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December 1, 2008 4:23:45 PM

Liderc said:
When did the Zalaman 9700 become "one of the best heatsinks on the market" ??

I'm seeing many blown chips in this guys future.


I also forsee many blown chips in my future, but the Zalaman 9700 is the 2nd best reviewed Heatsink on Newegg. I would think that saying "one of the best heatsinks on the market" would be correct on that fact alone.
December 1, 2008 5:44:19 PM

toledo_speedo said:
I also forsee many blown chips in my future, but the Zalaman 9700 is the 2nd best reviewed Heatsink on Newegg. I would think that saying "one of the best heatsinks on the market" would be correct on that fact alone.


Newegg is full of people who know nothing about heatsinks and just get the best rated ones. Point and case look at the arctic freezer 7 pro. If you want to really find out what heatsinks are the best ones out there go to http://www.frostytech.com/top5heatsinks.cfm
December 1, 2008 6:01:29 PM

kyeana said:
Newegg is full of people who know nothing about heatsinks and just get the best rated ones. Point and case look at the arctic freezer 7 pro. If you want to really find out what heatsinks are the best ones out there go to http://www.frostytech.com/top5heatsinks.cfm



This
December 1, 2008 6:32:46 PM

Liderc said:
This


Huh? This...??
Oh oh oh oh. Ah yes...This!! :D  :sarcastic: 
December 1, 2008 9:27:14 PM

Welcome to the internet.
December 2, 2008 1:32:58 AM

kyeana said:
Newegg is full of people who know nothing about heatsinks and just get the best rated ones. Point and case look at the arctic freezer 7 pro. If you want to really find out what heatsinks are the best ones out there go to http://www.frostytech.com/top5heatsinks.cfm


I don't care what frostytech is trying to sell this week, Zalaman rules!

I was able to get the CPU to boot @ 4.13GHz but temps shot up to 70c under load, so I backed it off until I get the new heatsink.
December 2, 2008 2:30:12 AM

Try raising the voltage to the maax Vcore for that CPU then run PRIME95 for 8hrs at 4ghz let me know.
December 2, 2008 2:36:41 AM

Why do you need to OC it that much?
Is it not good enough at it's current speed? lol
December 2, 2008 3:43:46 AM

yep, i also own a S964 :lol:  first aftermarket heatsink i bought... only dropped my temps 10 C over the stock heatsink but oh well... still worth it. ish.
December 5, 2008 2:40:39 AM

Currently running 4.1GHz with the new Zalaman & Prime 95 small fft's is stable @ 38C. Just for the record that is a 30C drop and I haven't tried to go higher yet. My 3DMark is now at 4500 (Pathetic) so I am thinking about upgrading the 775 CPU to a Dual or Quad Core. Any thoughts?
December 5, 2008 12:38:21 PM

^why do you need to upgrade? Just to get a better 3dMark score? or do you have some real world application that your processor just isn't fast enough for?

If all your stuff works fine and you are just upgrading for synthetic benchmarks then you would be making a mistake
!