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Newbie OC'er with a question or two(three actually)

post #1 of 24
Thread Starter 
So I finally got a desktop built (been on a laptop since I got into college) and I'm preparing to overclock it. I'm curing the TIM(AS5, it says 200 hours so mostly just trying to stay safe since I'm new at this) currently, but I had a few questions that I wanted to clear up before I dove into it:

1) I'm on an i3-560, which supports memory upto 1333 mhz. If the memory gets overclocked past 1333 and is stable will it actually be running that fast or is it limited by the i3 support? In my mind it seems like it should run faster but I want to be sure it would be worth the effort of getting it stable with faster memory that I may or may not be able to use.

2) Is there a way to calibrate Realtemp without the use of an IR thermometer? Is BIOS temp reporting more accurate than Realtemp?

3) Last one, for prime95 on a dual-core with HT, should I be using 4 threads or 2 for torture testing?
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post #2 of 24
Quote:
Originally Posted by LetThereBeDwight View Post
So I finally got a desktop built (been on a laptop since I got into college) and I'm preparing to overclock it. I'm curing the TIM(AS5, it says 200 hours so mostly just trying to stay safe since I'm new at this) currently, but I had a few questions that I wanted to clear up before I dove into it:

1) I'm on an i3-560, which supports memory upto 1333 mhz. If the memory gets overclocked past 1333 and is stable will it actually be running that fast or is it limited by the i3 support? In my mind it seems like it should run faster but I want to be sure it would be worth the effort of getting it stable with faster memory that I may or may not be able to use.

2) Is there a way to calibrate Realtemp without the use of an IR thermometer? Is BIOS temp reporting more accurate than Realtemp?

3) Last one, for prime95 on a dual-core with HT, should I be using 4 threads or 2 for torture testing?
Hey, you're asking the right questions, real noobs ask diresctly the perfect settings for 4.5GHz

1)If you set the RAM speed @1333 you practically set a 10x RAM multi over the base clock, which is 133MHz. When you OC from say 133 to 140 the ram would go to 1400. You may quickly end up with the RAM limiting you, say you're @160BCLCK and the RAM isn't stable @1600 - then you'd have to set the ram at lower than the 1333 setting (10x ram multi).
2)No idea about IR thermometers; BIOS temps is usually very accurate, the only problem is you must e in the bios to see it
3)4 threads if HT is enabled, 2 if HT is disabled. The number of threads must equal the number of logical cores (as seen by windows)

good luck
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post #3 of 24
Quote:
Originally Posted by LetThereBeDwight View Post
So I finally got a desktop built (been on a laptop since I got into college) and I'm preparing to overclock it. I'm curing the TIM(AS5, it says 200 hours so mostly just trying to stay safe since I'm new at this) currently, but I had a few questions that I wanted to clear up before I dove into it:

1) I'm on an i3-560, which supports memory upto 1333 mhz. If the memory gets overclocked past 1333 and is stable will it actually be running that fast or is it limited by the i3 support? In my mind it seems like it should run faster but I want to be sure it would be worth the effort of getting it stable with faster memory that I may or may not be able to use.

2) Is there a way to calibrate Realtemp without the use of an IR thermometer? Is BIOS temp reporting more accurate than Realtemp?

3) Last one, for prime95 on a dual-core with HT, should I be using 4 threads or 2 for torture testing?
I am the impatient kind - I never waited that long to start overclocking. It is usually the next day or day after. I never had any issues whatsoever. AS5 is pretty good TIM.

What the poster above me said I concur, but just want to add a few things.

1) When you start overclocking, set your RAM to a lower multiplier. If your RAM is rated at 1333, set the multiplier such that it is running 1066 Mhz. RAM can really throw some monkey wrench in overclocking.
2) RealTemp and CoreTemp temperatures are pretty accurate. I never had the need to calibrate them. Always used what either of those provided.
3) I do not know if you have prior experience overclocking, but it is always best to take time and overclock/find limits of each variable separately. Most people will try to jump to preset values that someone else got and run into all kinds of problem. If you need details on how to go about it, please ask and I will provide a quick run down.
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post #4 of 24
Thread Starter 
Thanks for the reply's guys.

I do know that I need to OC the RAM independently from the processor, and luckily I got in on a deal for ram that is already rated for 1600mhz. In reality I want to know that if the RAM is stable at 1600mhz that it won't be limited by the fact that the i3 is only "compatible" with 1333mhz RAM.

If realtemp is generally pretty accurate for you, that worries me because without OC I'm currently getting temps of ~100c under load with prime95 and ~35 idle. There is the possibility that I incorrectly installed the heatsink. I guess I can try reinstalling it.
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post #5 of 24
Realtemp or Coretemp always gave me pretty accurate temperature. What kind of CPU cooler are you using? 100c is way above my comfort zone.

I also have a 1600mhz RAM. But I had to use the middle multiplier (2:4 I believe) which makes it act like 1066mhz RAM to get stable. Currently, with my overclock of 3.8 Ghz, it is running somewhere between 1500 to 1600mhz - not sure of exact figure. If I increase the mult, I BSOD. RAM overclock is the least important factor in overclocking - so leave it at where it is stable. Tight the timings down if you have to. Although, I left them at manufacture recommended as well.
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post #6 of 24
Quote:
Originally Posted by LetThereBeDwight View Post
If realtemp is generally pretty accurate for you, that worries me because without OC I'm currently getting temps of ~100c under load with prime95 and ~35 idle. There is the possibility that I incorrectly installed the heatsink. I guess I can try reinstalling it.
Sweet fancy Moses, that's hot. You definitely need to confirm that your heatsink is properly installed, that you have thermal paste applied, and that the software is reading your temperatures right. Something's wrong there.
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post #7 of 24
Probably a combination of a "poorly" made heatsink/cpu surface (they don't come out of the factory all exactly the same) with a bad installation of the cooler and maybe not enough thermal paste
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post #8 of 24
Quote:
Originally Posted by LetThereBeDwight View Post
Thanks for the reply's guys.

I do know that I need to OC the RAM independently from the processor, and luckily I got in on a deal for ram that is already rated for 1600mhz. In reality I want to know that if the RAM is stable at 1600mhz that it won't be limited by the fact that the i3 is only "compatible" with 1333mhz RAM.

If realtemp is generally pretty accurate for you, that worries me because without OC I'm currently getting temps of ~100c under load with prime95 and ~35 idle. There is the possibility that I incorrectly installed the heatsink. I guess I can try reinstalling it.
How did you apply the thermal paste? If you're using the Intel stock cooler, just put a tiny drop (about the size of a pea, maybe a bit smaller) onto the center of the CPU. Then install the heatsink with equal pressure on all sides. If you do end up reinstalling the heatsink, make sure you use some rubbing alcohol and a cotton ball to thoroughly clean the surfaces of the CPU and heatsink before reapplying paste. And make sure it's not wobbly after you've got the pushpins in.
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post #9 of 24
Thread Starter 
For applying the TIM, I started with AS5's instructions of the straight line and then letting the cooler spread it. I checked the spread after and it didn't spread like at all, so I used a method I saw somewhere, and spread it using a coffee filter. This may have left me with not enough. I will reinstall it (cleaning it with rubbing alcohol and a coffee filter) and hopefully that'll fix my issue.

So we have a resounding yes that if the effective speed after OC is above 1333 it will be whatever that effective speed is it would seem. I'll update later tonight after the reinstall, and I'll post some pics of the thermal paste application and such. Thanks!
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Lappy 3001
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post #10 of 24
Thread Starter 
Okay so after reinstallation its running hotter idle and I'm not even going to try and stress it. Here's a few pics


The picture of how much I put on.

The picture of the heatsink after it spread out.

The picture of the CPU after it spread out.

This is angering me
Edited by LetThereBeDwight - 3/9/11 at 8:24pm
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Lappy 3001
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