i5-2500K/2600K batch number and o/c results

[l0ud_sil3nc3]

is this pretty much how everyone is doing it? How do you get the windows option to load up? I dont have windows OS options it just goes straight to windows splash screen

if you get to the windows splash screen then windows has loaded and your chip is good at that multi

[Phaseshift]

if you get to the windows splash screen then windows has loaded and your chip is good at that multi

thanks!

[Falkentyne]

if you get to the windows splash screen then windows has loaded and your chip is good at that multi

What if you get to the windows XP splash screen (with the bar thing moving), and then the computer just restarts?
(I tried to boot at x54 with 1.5v BIOS, LLC1, and Windows would have no part of it, just restarted on the XP splash screen (I got past the OS choices selection menu of course). Does that mean it needs more vcore?

[l0ud_sil3nc3]

What if you get to the windows XP splash screen (with the bar thing moving), and then the computer just restarts?
(I tried to boot at x54 with 1.5v BIOS, LLC1, and Windows would have no part of it, just restarted on the XP splash screen (I got past the OS choices selection menu of course). Does that mean it needs more vcore?

set your vcore to 1.58 to be sure and rule out your problem, but you are probably just on the edge if you can get there.

[Dumo]

L038A660 *A1241 53 max not bother to try max Mhz

L045B021 *A1943 53X

L050A853 *A2927 54X and Mhz wall @ 5506


3049A330 *A0174 52X max

3050A749 *A1961 52X max

3101A201 *A2247 53X max

3101A201 *A2242 54X and Mhz wall @ 5470

3101A201 *A1499 56X and Mhz wall @ 5650

All on ss cooling, seem like 3 batches need less vcore comparo to L0 batches

[Phaseshift]

taken from hwbot per massman. . .


"Thanks for the input guys!



Binning Sandy Bridge is extremely easy.

- use HS fan with easy mounting
- set Vcore to 1.55V
- disable HT and 2 cores (to not make it overheat with crappy HSF)
- increase multiplier

You just need to see the windows OS options, not actually boot into windows. If your CPU can show the different OS options, stability will just be function of Vcore and temperature. If it doesn't show the OS options, you will never get it stable anyways, so you might as well ditch the CPU.

Usually, it takes about 5 minutes to see if the CPU is good or not.

With some CPUs, you do have the issue that some multiplier is better than the other for stability. For instance, my current CPU can boot at 51x MAX (~ 5145MHz). When trying to run near this max speed, I have to use 49x instead of 50x multiplier because it's a lot more stable.

But, that's something you don't need to test. With BCLK adjustments, you'll never get 5200MHz going or so. Multiplier binning is the best way."

when disabling the cores you just set the multipliers at 0 right?

[Falkentyne]

Um, on the gigabyte boards, you can set how many cores to use, like 1-4.
I don't know if you can MANUALLY choose which core is disabled by setting a multiplier to 0...never thought about that...I would think there is a minimum multiplier allowed, though?

[jcniest5]

L038A660 *A1241 53 max not bother to try max Mhz

L045B021 *A1943 53X

L050A853 *A2927 54X and Mhz wall @ 5506


3049A330 *A0174 52X max

3005A749 *A1961 52X max

3101A201 *A2247 53X max

3101A201 *A2242 54X and Mhz wall @ 5470

3101A201 *A1499 56X and Mhz wall @ 5650

All on ss cooling, seem like 3 batches need less vcore comparo to L0 batches

So I take it that the 3101A201 with the SN# closest to A1499 would probably OC better? I haven't checked the local MC yet, but I think they still haven't sold out the tons of 2600K CPUs with the usual batch I have seen for the past three months or so yet. And even so, I may still not be able to buy one until my 14-day "Day Between Purchase" expires, which should be another week and a half. What a stupid policy, they are here to sell, so why care who buys how many times as long as they have the money to spend, right? That's the stupidest policy I have seen yet.

[sfxs]

Is it normal to have one core (core 0 maybe) be cooler than the other three? After a day of benching and stress testing my max temps (linx) were:
c0 63c
c1 71c
c2 72c
c3 70c

Batch is 3103B302; Costa Rica.

-sfxs

[Dumo]

So I take it that the 3101A201 with the SN# closest to A1499 would probably OC better?

Its 50/50 chance, a friend got A1491 and its clock the same.

[aussie-revhead]

Nice cpus guys, we havent even got C batches here in Aus yet, let alone 3 batches .... we have no hope down here .....

[jcniest5]

Can someone chime in on how consistent temp is among all the cores for the Costa Rica-based batch when idle? I know the Malaysia-based batch have a very consistent temp when idle (ie: core0 28, core1 28, core2 28, core 3 28). When stressed, each core may have a different temp.

[M3kk]

my HT is always on,no reason to disable it imho
my batch is L101B624
havent oc'ed yet but will do so shortly

SO? Any results?

[Trolle]

SO? Any results?

am just on 4Ghz on stock volts(1.176v),havent tried higher.

[dnottis]

Is it normal to have one core (core 0 maybe) be cooler than the other three? After a day of benching and stress testing my max temps (linx) were:
c0 63c
c1 71c
c2 72c
c3 70c

Batch is 3103B302; Costa Rica.

-sfxs

This is normal. I've had a few of these and they have all varied about that much.

[PytonOrm]

new batch on my new 2600K #L040B307

testing multi on my Asus P8P67 Pro bios 1503

x50 ok
x51 ok
x52 ok
x53 ok
x54 ok
x55 ok
x56 ok <--- booted up to win7 logo then start freeze
x57 ok <--- booted up to win7 logo then start freeze
x58 ok <--- booted up to win7 logo then start freeze

[Dumo]

3101A201 *1531 53X max, 5.47Ghz mhz. wall.

[PytonOrm]

Damn heat problem just booted up X56 and lower bclk

http://img195.imageshack.us/f/x56multi.jpg/

ahh 2 cores active... need dry ice or ln2 now seems same problem with X57-X58 to and this chip are crazy

did i get rare chip ??? seems so but to hot it is on air

[cowie]

Damn heat problem just booted up X56 and lower bclk

http://img195.imageshack.us/f/x56multi.jpg/

ahh 2 cores active... need dry ice or ln2 now seems same problem with X57-X58 to and this chip are crazy

did i get rare chip ??? seems so but to hot it is on air

looks like a very good chip, at least ice it down so it wont burn up maybe no need for ln2.

[Dumo]

Damn heat problem just booted up X56 and lower bclk

http://img195.imageshack.us/f/x56multi.jpg/

ahh 2 cores active... need dry ice or ln2 now seems same problem with X57-X58 to and this chip are crazy

did i get rare chip ??? seems so but to hot it is on air

Probly you have 55X 100bclk bootable chip. 56X will do with <100 bclk. Seems like cold will help just a little bit.
Try to find max mhz with bclk and 55X

[jcniest5]

OMG!!! I'm going to kill myself for sure. Just exchanged an L051B138 for a 3103B332 and it's not even stable at 4.6Ghz using 1.350v (the B138 was completely stable then)!!! It's getting worse!

[Falkentyne]

OMG!!! I'm going to kill myself for sure. Just exchanged an L051B138 for a 3103B332 and it's not even stable at 4.6Ghz using 1.350v (the B138 was completely stable then)!!! It's getting worse!

sigh....
if i weren't already committed to giving my friend my 2600k (and buying him a UD4), I'd just sell you my first 2600k for half price (the one that does 5 ghz at 1.5v) and does X49 with PLL disabled (didn't try booting to win at x49, just BIOS, but x50 PLL disabled is immediate overclock failed, same as my second chip).

Sorry about the luck you're having.

[jcniest5]

sigh....
if i weren't already committed to giving my friend my 2600k (and buying him a UD4), I'd just sell you my first 2600k for half price (the one that does 5 ghz at 1.5v) and does X49 with PLL disabled (didn't try booting to win at x49, just BIOS, but x50 PLL disabled is immediate overclock failed, same as my second chip).

Sorry about the luck you're having.

I got up on my feet, gathered my courage and took that suckee CPU back and exchanged it for yet another same batch with a different SN. This one is at least stable at the initial 4.6Ghz using 1.350v. Max bootable into Windows is 52x @1.550v, but far, far from stable. It would BSOD almost instantly when Prime95'ed. Tried 50x100 using 1.50v, but seems like it's not stable either with "processor [x] stopped" message. Not worth using 1.550v for a 5Ghz speed (heat and CPU life degradation). Man, CPU binning is the flakiest thing I have ever done. Never have so many bad luck in my entire life!

[Dumo]

Man, CPU binning is the flakiest thing I have ever done. Never have so many bad luck in my entire life!

Welcome to the club JC

[l0ud_sil3nc3]

I got up on my feet, gathered my courage and took that suckee CPU back and exchanged it for yet another same batch with a different SN. This one is at least stable at the initial 4.6Ghz using 1.350v. Max bootable into Windows is 52x @1.550v, but far, far from stable. It would BSOD almost instantly when Prime95'ed. Tried 50x100 using 1.50v, but seems like it's not stable either with "processor [x] stopped" message. Not worth using 1.550v for a 5Ghz speed (heat and CPU life degradation). Man, CPU binning is the flakiest thing I have ever done. Never have so many bad luck in my entire life!

yes it is an arduous and mundane process, but it's the only way to find a golden one, so don't feel bad, just sell it and buy another, then rinse and repeat until you find the one