Cheap Processor Upgrade? - Page 21

and 'doing it'

Just to reconfirm My 1.7ghz Dothans Works fine at 2.26 and my friends 1.8ghz works pretty well but not fully at 2.4ghz due to temperature problems.

Well I received my 1.8 and did the pinmod in my 9300. First thing I noticed: BIOS detected the speed as Being 2400 Mhz!!!!!!!!!!!!!!1 Wahoo, put it all together, and it booted into windows fine!!!!!! Only to my dismay once I got it into windows, it failed prime at every setting of multiplier, even with the highest voltage 1.340 or whatever it is. Even at 6x it failed prime immediately at 1.340 volts. Any ideas????

P.S. Oh yeah even though it failed prime immediately, Centrino Hardware Control never said it had any problems with it, so I wouldn't put too much faith in the testing portion of that program.

Sounds like it's seriously unstable in some way. You should do the pin voltmod and try a higher voltage. It's back a few pages.

how are the temperatures?

Simple fix:
Use rmclock and lower the multiplier untill its prime stable.
1.34 is the default voltage for the PM.
IMO volt mods are a waste of time and you are better off running at 2261 mhz stable than 2400 with a volt mod.

i think he mentioned that he tried it at every multiplier..

blbrchnk, are you sure you had the profile setup correctly to actually have the max multi be as set? that sounds a bit strange and abnormal

I think your right.
He has to have something misconfigured. I cant see any way that it wont work if setup properly at the 14x multiplier.

I have been reading this thread from day one and have been tempted. So here goes....

Okay, opinions here. I have a 1.86 and my wife has a 1.6 (400) in her 8600. Will I notice a difference going to 2.13 from 1.86 or will it be mainly synthetic benchmarks? (She could care less about dropping to 1.4 so that is not an issue).

If there is some really world difference I would do it but for synthetic benchmarks I really could care less. Anyone who has done this let me know. Also, how does it effect batt life, and does it still speed step correctly when on Battery?

Thanks in advance guys...

operaman, this is a couple pages back.

Okay, the temperatures were fine, they stayed in the 50's under full load, of course I couldn't even max it out with prime since it stopped immediately. I may have to try it again and make sure that the speed was actually changing to the multiplier that I set it to. For some reason I didn't double check, but I did set it with that centrino program.

Yeah ok alright, just tore it back apart and put the 1.8 in, and it hit me even before I turned it on as to what I did wrong. Before in the Centrino Hardware Control program, I set the CPU voltage to 1.340V at lower speeds but then I never actually went over to the CPU Speed tab and changed the speed at which it was running. Blbrchnk <- DUMB. But anyways it is running Prime95 stable at 2133 right now. For some reason only the even multipliers are available under the Cpu Speed tab making 17x or 2266Mhz unavailable for testing. Guess I will just have to try RMClock again for that.

Sounds like a classic case of "these guys have no idea what the hell they're talking about."

A) CPUs can't die from the "strain of overclocking;" they CAN die if you overvolt them or don't provide proper cooling. For most chips, if you can run Prime through a good 18-24 hours overclocked, you're not "straining" the chip.
B) Everyone should realize that this voids warrenties. Hell, I did for sure.
C) The only thing that really decreases the life of a CPU is adding more volts to it, and usually that doesn't matter for as long as you're going to be using the CPU for, especially if you have the right cooling for it.

Eh. Whatever. It's just the age-old debate between the people who are overclocking junkies (like myself) and those who just don't see the thrill (I know some personally).

It does get tired though debunking the same myths about CPU life over and over......

Overclocking does indeed shorten CPU life. But if you think that it's a big deal that your CPU will only last 10 years, then you haven't been in the 'puter world very long, or you're particularly dense . They only way you will likely kill a CPU is if you forget to put a heatsink on it, or overvolt it way too far. Overvolting itself isn't necessarily dangerous at all. I have a P3 here that's been overvolted (1.65v -> 1.85v) since 1999. I ran a Athlon XP at 2.2v for months a couple of years back (bitch to cool), but that chip still works fine today. Overclocking is almost an art. It has lots of variables that you need to consider. That's that makes it fun. It's a CHALLENGE to figure out what you can get out of the CPU you bought.

Yes, there can be disasters. I almost barbequed a Radeon 9700 when the fan died while it was overclocked. 2 years ago I accidentally drilled into a capacitor on a Radeon 8500 when I was attaching a new custom cooler to it. Both cards worked for a while afterwards, but died in the end. I don't recall any dead CPUs though... You just need to be careful with cooling....don't let it run at 90C for a week.

Get over it people. If you don't want to overclock, FINE! But, if you want to tinker then get in here and start being on-topic!


Speaking about on-topic...Spazilton can we add some stuff to that first post? You should put some of the success and failure stories on there, as well as links to the mod guides that have been posted.

I am flirting with 2.66 - and it feels good :)

31 sec superpi in my 9300:



and my 4 minute crash of prime95



and my cpuid screenie:



Now, a little about what I did:

I recieved my ebayed 2.0 p-m 755 in the mail today. I ordered my arctic silver 5 a couple days before winning my ebay auction, and yet it hasn't come yet. being my impatient self, I started modding anyways.

The first thing I did was ground the bsel[0] pin and the vid[3] pin:



That didn't work at all Windows would not boot unless I disabled speedstep in bios.

Then I tried the vid4 pin, although stomper already said it ran too hot I thought I would give it a shot...



This made my PC much happier.

Now I am thinking I need to do one of two things: either ground another lower vid pin or maybe actually put a real thermal soluction on it. or both. Right now my max thermal reading is 74c 5 minutes into prime. I did not even re-apply a thermal pad or anything; I just stuck the previously used chip on the previously used thermal pad and let er rip.

I'm thinking I can probably stabilize this thing with some AS5. More results to come. When I stabilize it, I will post.

Oh and I plan on announcing this as a world record for a laptop... If I am wrong someone please tell me now and save me the embarrasment

thanks all for the guidance, inspiration, disbelief, and the other things that drive one to do something crazy

christ

in retrospect of course grounding vid3 wouldn't work! Intel's voltage table specifies that at 1.340 volts, vid3 is already grounded, while vid 2, 1, and 0 are not, and neither is vid4. 1.340 is the highest voltage the 755 will allow without pin mods.

now i still have AS5, vid2, vid1, and vid0 to play with!

<happy camper> this is gonna work!

Keep us posted on your "experiment" lucidchaos!

Noody

Can do...

So now I grounded vid1. My socket is starting to look like a jungle gym but so far prime is running well... albeit at a toasty 83 degrees C. Looks like my AS5 needs to arrive soon!

I'll let this go for a while, possibly overnight.

On the positive side, I haven't seen a single sign of thermal throttling... but I did have a slight glitch:

in an attempt to find out if my processor was throttling itself or not, I ran prime on the max heat large fft setting for about ten minutes. I then launched superpi and immediately shut off prime. To my dismay, superpi errored... but up until that point prime (to my knowledge the better stability test) was still going strong.

I'll keep you all posted on the results. I am currently running 32M superpi on top of a continuous large FFT prime. If these pass overnight, I think I am stable. and THEN when my AS5 arrives I should be in the clear for my thermal readings as well.

I can't wait to run some 3dmarks! makes me wish I ... ah sh*t my superpi just failed after 10 minutes... but my prime is still running strong... what to do what to do...

*edit* ok now prime failed after 26 minutes, cpu temp maxxing out at 84 degrees C. starting to think I won't be able to do this mod without AS5. I could raise my vcore even more... but then again... yeah I guess I'm patient enough to wait for my beloved AS5...

What kind of temperature change should I expect when I apply the as5?

why dont you just set the multiplier to 18 instead?
2.4 without volt mods would be flying