Thinking of buying a used cpu off Ebay

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Sonikku

Lifer
Jun 23, 2005
15,898
4,922
136
Just got the SR00T installed and running. Two quick questions though. One of the cores runs 5c hotter than the other three when under load (as much as 60c). I used the pea drop method when applying arctic silver before laying down the intel stock sink, but could the cause be that the paste didn't cover the full four corners of the cpu? Either way I'm guessing it really isn't an issue so long as it isn't in 90c territory or something.

Also I had a question about turbo. I only had a chance to run it with WoW so far and cpu Z only showed it running in stock speed, (3.3ghz) but then again task manager showed wow barely pushed the cores 20-30% each. Is it that Turbo only kicks in when an App like Witcher 3 or something really hammers the cores 90%+ plus? Just curious how turbo works. Never had it on my pentium G630.
 

myocardia

Diamond Member
Jun 21, 2003
9,291
30
91
Also I had a question about turbo. I only had a chance to run it with WoW so far and cpu Z only showed it running in stock speed, (3.3ghz) but then again task manager showed wow barely pushed the cores 20-30% each. Is it that Turbo only kicks in when an App like Witcher 3 or something really hammers the cores 90%+ plus? Just curious how turbo works. Never had it on my pentium G630.

This is the reason that you are always supposed to reset your BIOS, when you install new processors. Your BIOS is currently setup to run a Pentium, with no turbo. You won't have turbo until you reset your BIOS to defaults.
 

ClockHound

Golden Member
Nov 27, 2007
1,111
219
106
arctic silver? Patience and more patience before the best temps are available....

From Arctic:
"Important Reminder:
Due to the unique shape and sizes of the particles in Arctic Silver 5's conductive matrix, it will take a up to 200 hours and several thermal cycles to achieve maximum particle to particle thermal conduction and for the heatsink to CPU interface to reach maximum conductivity. (This period will be longer in a system without a fan on the heatsink or with a low speed fan on the heatsink.) On systems measuring actual internal core temperatures via the CPU's internal diode, the measured temperature will often drop 2C to 5C over this "break-in" period. This break-in will occur during the normal use of the computer as long as the computer is turned off from time to time and the interface is allowed to cool to room temperature. Once the break-in is complete, the computer can be left on if desired."
 

Sonikku

Lifer
Jun 23, 2005
15,898
4,922
136
I was aware of that, I was just curious why the temps were not uniform and reading like 54/54/53/60. Yes I know the paste will take 200 hours to lower the temps another 5c but even then it'll probably still just be like 49/49/48/55 or something. One core is higher than the other, hence the curiosity.

This is the reason that you are always supposed to reset your BIOS, when you install new processors. Your BIOS is currently setup to run a Pentium, with no turbo. You won't have turbo until you reset your BIOS to defaults.

"This is why". I didn't know that. Now I do. I'm glad I asked as I keep learning about these little things all the time. :)
 

YBS1

Golden Member
May 14, 2000
1,945
129
106
I was aware of that, I was just curious why the temps were not uniform and reading like 54/54/53/60. Yes I know the paste will take 200 hours to lower the temps another 5c but even then it'll probably still just be like 49/49/48/55 or something. One core is higher than the other, hence the curiosity.



"This is why". I didn't know that. Now I do. I'm glad I asked as I keep learning about these little things all the time. :)

That's not too big of a spread, you may be able to get them slightly more uniform with multiple mount attempts, but then maybe not. It's normal and actually better than average I'd guess.
 

DrMrLordX

Lifer
Apr 27, 2000
22,886
12,943
136
I was aware of that, I was just curious why the temps were not uniform and reading like 54/54/53/60. Yes I know the paste will take 200 hours to lower the temps another 5c but even then it'll probably still just be like 49/49/48/55 or something. One core is higher than the other, hence the curiosity.

Could be due to irregularities in the gap between the die and IHS. That chip isn't soldered, is it?
 

SPBHM

Diamond Member
Sep 12, 2012
5,066
418
126
Just got the SR00T installed and running. Two quick questions though. One of the cores runs 5c hotter than the other three when under load (as much as 60c). I used the pea drop method when applying arctic silver before laying down the intel stock sink, but could the cause be that the paste didn't cover the full four corners of the cpu? Either way I'm guessing it really isn't an issue so long as it isn't in 90c territory or something.

Also I had a question about turbo. I only had a chance to run it with WoW so far and cpu Z only showed it running in stock speed, (3.3ghz) but then again task manager showed wow barely pushed the cores 20-30% each. Is it that Turbo only kicks in when an App like Witcher 3 or something really hammers the cores 90%+ plus? Just curious how turbo works. Never had it on my pentium G630.

it should run at 3.4GHz with anything that loads the CPU close to 100%, 3.6GHz should show up with single thread stuff, but it's not easy to notice because it jumps from one thread to another quickly, I would expect WoW to be running at 3.4 or higher if turbo is working properly...

core temperatures are like that, the core closes to the disabled IGP is normally the coolest and so on
 

Headfoot

Diamond Member
Feb 28, 2008
4,444
641
126
Just got the SR00T installed and running. Two quick questions though. One of the cores runs 5c hotter than the other three when under load (as much as 60c). I used the pea drop method when applying arctic silver before laying down the intel stock sink, but could the cause be that the paste didn't cover the full four corners of the cpu? Either way I'm guessing it really isn't an issue so long as it isn't in 90c territory or something.

Also I had a question about turbo. I only had a chance to run it with WoW so far and cpu Z only showed it running in stock speed, (3.3ghz) but then again task manager showed wow barely pushed the cores 20-30% each. Is it that Turbo only kicks in when an App like Witcher 3 or something really hammers the cores 90%+ plus? Just curious how turbo works. Never had it on my pentium G630.

1 core always runs hotter than the others on sandy bridge. My 2500k is the same way
 

Sonikku

Lifer
Jun 23, 2005
15,898
4,922
136
The framerates Don't seem to be any better really compared to my pentium g630 dual core I got for $64 new three years ago, but I've only been playing the typical WoW/swtor/skyrim so far. I'm sure that having the extra two threads is going to help once I get inquisition and witcher installed, but boy that g630 sandy bridge sure was the little hero for the money for the three years it sat in my motherboard looking back in hindsight.


Could be due to irregularities in the gap between the die and IHS. That chip isn't soldered, is it?

I don't think so.
 

B-Riz

Golden Member
Feb 15, 2011
1,595
765
136
Are you still rocking the 7770 and your old graphics settings?

If so, you may not notice the extra CPU-ness yet.

The quad will allow a beefier GPU to stretch its legs, and in turn, push some graphics settings higher.

Though WoW is a very well optimized game for low and mid range hardware.

For non-gaming stuffs, it should feel a bit better, but that is largely subjective.

If no SSD yet, that I would also consider that in the future.
 
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BonzaiDuck

Lifer
Jun 30, 2004
16,558
1,984
126
I have to check what i have in my basement i have 2 cpus and motherboards that i havent used in a while just sitting there collecting dust. I believe they are a i72600k inside a p8p67 mobo.

Here, I'm also responding to MonkeyDelMagico's application of the word "legendary."

I have this image of a 5-year-old in a white and brown striped polo shirt and shorts, walking down the street with the very largest Hershey Milk Chocolate Bar available anywhere. It's a hot day, and chocolate is drooling from his grin down his chin and piling up on the shirt.

So you believe they are i7-2600K systems . . . gathering dust?! :biggrin:

If you think the vision of the neighborhood kid with the chocolate bar is a deprecatory criticism, I apply it to myself as I survey the machines in this room -- my digital fortress, and take inventory of my four large computer parts lockers.

I just couldn't imagine myself letting two i7-2600Ks gather dust in those boxes!! :biggrin:

That's sort of equivalent to letting the Hershey bar lay on the hot sidewalk -- in its own puddle!

I'd incline myself to say "Screw that P67 board!" You can probably still find a refurb Z68 or Z77 board, or a brand new Asrock Z77 Extreme 4 for prices ranging from $85 to $130.

Truth is, I wear this on my sleeve: I'm a hardware addict. I picked up an i7-2700K processor, refurb P8Z68-V Pro/Gen3 board and 16GB of used RAM last fall and built this machine I'm using now. I'm either as happy as a pig in s***, or a kid with a giant Hershey bar. Of course, you'll say "That's stupid! Why didn't you build a Devils Canyon with a Z97?"

Simple. I need to attend HA -- Hardware-a-holic Anonymous.
 
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B-Riz

Golden Member
Feb 15, 2011
1,595
765
136
Here, I'm also responding to MonkeyDelMagico's application of the word "legendary."

I have this image of a 5-year-old in a white and brown striped polo shirt and shorts, walking down the street with the very largest Hershey Milk Chocolate Bar available anywhere. It's a hot day, and chocolate is drooling from his grin down his chin and piling up on the shirt.

So you believe they are i7-2600K systems . . . gathering dust?! :biggrin:

If you think the vision of the neighborhood kid with the chocolate bar is a deprecatory criticism, I apply it to myself as I survey the machines in this room -- my digital fortress, and take inventory of my four large computer parts lockers.

I just couldn't imagine myself letting two i7-2600Ks gather dust in those boxes!! :biggrin:

That's sort of equivalent to letting the Hershey bar lay on the hot sidewalk -- in its own puddle!

I'd incline myself to say "Screw that P67 board!" You can probably still find a refurb Z68 or Z77 board, or a brand new Asrock Z77 Extreme 4 for prices ranging from $85 to $130.

Truth is, I wear this on my sleeve: I'm a hardware addict. I picked up an i7-2700K processor, refurb P8Z68-V Pro/Gen3 board and 16GB of used RAM last fall and built this machine I'm using now. I'm either as happy as a pig in s***, or a kid with a giant Hershey bar. Of course, you'll say "That's stupid! Why didn't you build a Devils Canyon with a Z97?"

Simple. I need to attend HA -- Hardware-a-holic Anonymous.

+1

All my recommendations now for entry into gaming PC's is to get a used i5 2500k or greater, as long as new / refurb Z77 boards are available to purchase. (FX 8350 / 8370 is good budget gaming CPU also)

My latest toy (sig) was just to mess around with (temper the OC desire).

The 2700k and GA-Z77X-UP4 TH were sent to my newly retired father, who is was still rocking an i5 650 (I think) in a Dell. :(

I really could not sell the above, and planned on running the 4790k for a few months to see if it really was "all that and a bag of chips".

I have been smitten by the 4 x Intel USB 3.0 on the AsRock Extreme3 and full SATA 6.0 support, le sigh.

Worse comes to worse, I can just trade my father for my old SB, right? :)
 

Sonikku

Lifer
Jun 23, 2005
15,898
4,922
136
I would have gone with a k, but no point in spending another $30 when my motherboard wasn't really an overclocker. It itself was only $60 when I got it 3 years ago on sale and still using the stock heatsink. I would have had to buy a whole other motherboard by which point I might better have looked into getting a haswell or something anyway, so I'm content with just having a chip that can do Turbo. Right off the bat it's clocked higher and has twice as many cores as the processor I was using. (pentium g630)
 

B-Riz

Golden Member
Feb 15, 2011
1,595
765
136
I would have gone with a k, but no point in spending another $30 when my motherboard wasn't really an overclocker. It itself was only $60 when I got it 3 years ago on sale and still using the stock heatsink. I would have had to buy a whole other motherboard by which point I might better have looked into getting a haswell or something anyway, so I'm content with just having a chip that can do Turbo. Right off the bat it's clocked higher and has twice as many cores as the processor I was using. (pentium g630)

Right on.

As long as your computer does what you want it to and you are happy with it, that is all that is really important. :)
 

poofyhairguy

Lifer
Nov 20, 2005
14,612
318
126
I would have gone with a k, but no point in spending another $30 when my motherboard wasn't really an overclocker. It itself was only $60 when I got it 3 years ago on sale and still using the stock heatsink. I would have had to buy a whole other motherboard by which point I might better have looked into getting a haswell or something anyway, so I'm content with just having a chip that can do Turbo. Right off the bat it's clocked higher and has twice as many cores as the processor I was using. (pentium g630)

I think you did awesome. I admire your budget gaming skills. So many people just throw all the hardware they can at games, I think the fun is finding the best price for performance levels and maximizing what is on the table today rather than some notion of future proofing!

Please let us know when you give that GPU an upgrade.