yashsingh1/xdaforums huggingface dataset:
[Nexus 4 General] ROFLkopter:
Mine is 'fast' and undervolted by -100mV. Tried to go lower but my N4 wouldn't take it and just crashed.

Sent from a Paranoid Android w/ franco.Kernel powered Nexus 4 with XDA Premium!
[Nexus 4 General] gravitysandwich:
Paranoid android of course!

(Btw Franco kernel +paranoid android is a deadly combo. Sweet battery and awesome performance)

Mine is fast binned....
[Nexus 4 General] tiru.adi13:
I have a nominal CPU and I've undervolted by -125mv...

How is it that my friend's fast can't go stable below 100?

Sent from my Nexus 4

------------------------------------

Devices:

LG Google Nexus 4 16 GB

Samsung Google Nexus 10 32 GB

Sony Ericsson Xperia Mini ST15i (Retired * Sold)

Nokia C7 (Sold)

HTC TyTn II (Sold)

Motorola RAZR v3 (broken)

Sony Ericsson W705 (broken)

------------------------------------
[Nexus 4 General] ELB27:
Fast :cool:
[Nexus 4 General] AndiMischka:
Mine is fast too. ;)
[Nexus 4 General] fisheyes1:
I've got a 'fast', UV at -125mV if i go to -150mV I get boot loops. :(
[Nexus 4 General] AndyC76:
Odd

It doesn't work for me

(Already rebooted)

Stock ROM 4.2.2

Rooted

Franco M3

I just get a blank line
[Nexus 4 General] dex2grigg:
Woop :)
[Nexus 4 General] strobel:
Fast and furious! :good:

but i don't care. He's my little boy and i like it how it is =D

N4 forever :cool:
[Nexus 4 General] Sturdy_99:
OOOOPS

Whats this?:confused:
[Nexus 4 General] Karo.:
4 = Faster
[Nexus 4 General] napyaninja:
Fast ...who cares....important thing is that i have a nexus 4
[Nexus 4 General] cocreateguid:
My wife's phone got "Fast" and mine got "Faster"
[Nexus 4 General] sirius b:
Here's mine.
[Nexus 4 General] JeffyLube0:
Nominal FTW!!!!! UV at -100 with no problems.
[Nexus 4 General] CiViCKiDD:
I obviously haven't read all these posts, but I have a "faster" nexus 4 and my sister's is something slower (been a while since I last checked it, will use Franco's tool to check it later).

CPU-Z reports mine as 1.7ghz, and hers as 1.5ghz.
[Nexus 4 General] Travel_Mate:
Has nothing to do. Nine is slow, but cpu-z says 1.73
[Nexus 4 General] albaoe:
Well, i think i was lucky, i have faster.

And CPU-Z says 1.84GHz.
[Nexus 4 General] vn800art:
Here I am: faster and CPU Z says 1,51mhz

:).... Does it mean something ?

I can say it is hard to let the set be hot, but it happened for instance when surfing web in Edge ( it was really hot and discharged in a hurry, from 40% to 20% in no more than 5 minutes. Rev. 11 bought in Italy but is a set for French market , came with earpiece.

Regards

Alessandro
[Nexus 4 General] twowheeler:
Nominal. But I can undervolt lower than most fast chips. So I guess the bining isn't that important
[Nexus 4 General] sigma392:
The clock speed depends on the max speed of your kernel. Anyway I have a nominal chip and I can UV by 125.
[Nexus 4 General] harsh.ea:
Cool
[Nexus 4 General] Joloxx9:
Fast chip here, - 125 since last 2 months. I will try 150 in near future

Wysłane z mojego Nexus 4 za pomocą Tapatalk 4
[Nexus 4 General] netpc02:
I bought my N4 last november and got number '1' meaning 'slow' chip. So sad...

but it's a good reason for me to buy N5 this winter!! haha

p.s. I've never seen a slow moment with my 'slow' chip.
[Nexus 4 General] MrPhilo:
You can undervolt lower because the faster variants are already pre-configured at a lower voltage.
[Nexus 4 General] Richieboy67:
Omg... do you guys ever read the thread you post in? CPU binning means squat unless you are under clocking big time. Personally I never under clock anything..
[Nexus 4 General] FalenDemon:
Hi guys!

First time when I checked CPU it was nominal, then become slow. Does it depends on something we could change (ex.kernel) or what?
[Nexus 4 General] sohamssd:
It shouldn't happen like this afaik:eek:
[Nexus 4 General] colapro:
You mean undervolting
[Nexus 4 General] GEKTHEBOSS:
Italian rev11 16gb faster,unlocked cm10.1.1!!:)

Inviato dal mio Nexus 4 con Tapatalk 2
[Nexus 4 General] sc00by666:
I have fast revision. 16.04.2013 mfg date.
[Nexus 4 General] karma167:
Yes i got faster!
[Nexus 4 General] BravoMotorola:
new rev 11 with nubs got nominal, but runs a lot cooler then my last nexus which was "faster"

Edit: Ehh, never mind. Still running hot and cant break 22000 on antutu
[Nexus 4 General] Lucenzo7:
Mine is fast.
[Nexus 4 General] unforgiven1311:
Nexus 4 white, "fast". :)
[Nexus 4 General] GEKTHEBOSS:
White...<3 but i still have an tpu jelly white cover;):D

Inviato dal mio Nexus 4 con Tapatalk 2
[Nexus 4 General] grgana:
Nominal 16,gigs bought 13.6.2013...stil happy wit it running CM 10.1.2...:D
[Nexus 4 General] ntn359:
I'm getting like this..what does it mean?

Sent from my Nexus 4
[Nexus 4 General] GEKTHEBOSS:
It mean you have to reboot and reexec command;)

Inviato dal mio Nexus 4 con Tapatalk 2
[Nexus 4 General] ntn359:
Thanks... I got faster!! :):)

Sent from my Nexus 4
[Nexus 4 General] Maelstr0m:
fast for me!
[Nexus 4 General] ilmorga:
Fast. :thumbup:
[Nexus 4 General] CatalinBRB:
Faster 4th generation
[Nexus 4 General] ngoralph:
i got a 1 in the result it means slow right?

production date was april 9 2013
[Nexus 4 General] GEKTHEBOSS:
Yep:o

Inviato dal mio Nexus 4 con Tapatalk 2
[Nexus 4 General] Snoon:
Nexus 4 Black (302k) - according to franco.Kernel updater my CPU is nominal.
[Nexus 4 General] RohanM:
305k Nominal. :)
[Nexus 4 General] Fatherboard:
306K (19/6/13) - Faster :D
[Nexus 4 General] coolzarjun:
306k ... Nominal ..still undervolts 100-125uv

Sent from my Ne><us 4
[Nexus 4 General] RohanM:
I never undervolt so dont care abt this binning :D
[Nexus 4 General] Svid:
Nominal but what's the meaning of this?
[Nexus 4 General] Fatherboard:
It means that a chip which is designated as nominal will require (theoretically) higher voltage in order to maintain stability at certain clock speed when compared to fast/faster (more relevant to those who overclock their nexus). Just like when you overclock your CPU on your desktop PC. Some chips will need more juice than others. The problem is that a higher voltage means more battery drain & heat.
[Nexus 4 General] CoolApps:
303k Fast.
[Nexus 4 General] eefo:
http://i1197.photobucket.com/albums/aa426/eefoo/Screenshot_2013-07-24-17-56-15_zps62997b6c.png

Do i feel lucky for this or is it the reason why i feel my phone hotter than before.

I dont play with voltage AT ALL :/

Got no clue why it has started getting warm for no reason.

Plus not a heavy user of nexus 4 i am :/.
[Nexus 4 General] adiif1:
Slow ... <cry>
[Nexus 4 General] aresbv2000:
I have a "faster" one here.With faux123 and 150 mv global undervolting i have no problem at all with overheating.Unless i play hard games(Real Racing 3,Real Boxing and other games like that) my phone stays cold.
[Nexus 4 General] adichandra:
call me stupid, but mine says 1
[Nexus 4 General] Christian Troy:
mine too, with the 4.3 kernel has changed the acpuclk driver too.

OLD

if (tbl_idx == PVS_UNKNOWN) {
tbl_idx = PVS_SLOW;
dev_warn(drv.dev, "ACPU PVS: Defaulting to %s\n",
pvs_names[tbl_idx]);
} else {
dev_info(drv.dev, "ACPU PVS: %s\n", pvs_names[tbl_idx]);
}

NEW

if (pvs_bin == 0x7) {
pvs_bin = 0;
dev_warn(drv.dev, "ACPU PVS: Defaulting to %d\n", pvs_bin);
} else {
dev_info(drv.dev, "ACPU PVS: %d\n", pvs_bin);
}

according to "pvs_names" from the 4.2 kernel

char *pvs_names[] = { "Slow", "Nominal", "Fast", "Faster", "Unknown" };

qfprom_base = ioremap(qfprom_phys, SZ_256);
/* Select frequency tables. */
if (qfprom_base) {
pte_efuse = readl_relaxed(qfprom_base + PTE_EFUSE);
pvs = (pte_efuse >> 10) & 0x7;
iounmap(qfprom_base);
if (pvs == 0x7)
pvs = (pte_efuse >> 13) & 0x7;

switch (pvs) {
case 0x0:
case 0x7:
tbl_idx = PVS_SLOW;
break;
case 0x1:
tbl_idx = PVS_NOMINAL;
break;
case 0x3:
tbl_idx = PVS_FAST;
break;
case 0x4:
tbl_idx = PVS_FASTER;
break;
default:
tbl_idx = PVS_UNKNOWN;
break;
}

1 means NOMINAL
[Nexus 4 General] adichandra:
thanks Chris, glad i got nominal, because someone on the other thread said mine was slow. lol.
[Nexus 4 General] morganmf:
Mine bought on 22nd july is PVS 4, manufacturing date 20130410
[Nexus 4 General] bixano:
here it's shows FAST!
[Nexus 4 General] amar1548:
I have faster

recently bought the white nexus
[Nexus 4 General] temasnick:
Mine says nothing :)
[Nexus 4 General] eefo:
You need to reboot your device and then try again.
[Nexus 4 General] temasnick:
Thanks... pvs: 4 that means faster right?
[Nexus 4 General] GEKTHEBOSS:
Yeah...you can emjoy atleast 150 mv:D

Inviato dal mio Nexus 4 con Tapatalk 2
[Nexus 4 General] qwerty123321:
Mines a fast..does that mean its slower/lower grade than faster?
[Nexus 4 General] manpildo:
303K

Faster
[Nexus 4 General] MisT.:
fastest :victory:
[Nexus 4 General] Phonerix:
How about fast ? 100 mv will be right?
[Nexus 4 General] flux0r:
got fastest, wonder how much i can UV
[Nexus 4 General] manpildo:
People with "Faster" CPUs, can you share how big UV you use and how's your system stability? Apparently -150mV should be stable, but is it really so? I'm currently testing it out myself, but I would like to know what others have to say, who have perhaps tested it for a longer period of time. Also, what is the best app to perform a stress test?

EDIT: I can confirm that -150mV is NOT stable for me on "faster" processor. It froze 3 times and gave me some "AP Watchdog DemiGod" green screen each time. Currently testing -100.

EDIT2: Just read this could be a Faux kernel issue instead.
[Nexus 4 General] _GRIZZLY_:
So, I think that in android 4.3 are:

0=Slow

1=Nominal

2=Fast

3=Faster

4=Fastest

Now who have number 4 are fastest?

I am right?
[Nexus 4 General] davjan:
Mine is fast and stable @ 100mv
[Nexus 4 General] manpildo:
It seems I'm stable only at -25mV with "faster" then :rolleyes:
[Nexus 4 General] Fatherboard:
Well, with 4.2.2 I got "Faster". with 4.3 I got "Fastest".

Stable @ -100mv, unstable @ -150mv (global). running latest Franco's nightly.
[Nexus 4 General] sc0use:
boo i got a slow one hahaha
[Nexus 4 General] _GRIZZLY_:
Fastest on android 4.3= PVS 4?
[Nexus 4 General] Fatherboard:
Yup
[Nexus 4 General] larsonalux:
this metod not work for me, i have reboot many times, write the comand line word for word copy and past the codeline but not work, whit the app franco kernel sign my cpu unknown sorry for bad english
[Nexus 4 General] ratboy666:
i get acpu pvs 3 not sure what it means
[Nexus 4 General] favaroooo:
Mine is fastest
[Nexus 4 General] Fatherboard:
If you're on 4.3, it means that you got a "faster" cpu.
[Nexus 4 General] andybfmv96:
Does this mean I have nominal? This isn't the output I would expect from the command..
[Nexus 4 General] larsonalux:
it's same for me, i tried for many times to delivery the cpu binning for my device but is impossibile :mad:
[Nexus 4 General] carlosmg2:
why on 4.2.2 I had 'Nominal' and now on 4.3 I have 'Slow' ??
[Nexus 4 General] Fatherboard:
You have to grant a "superuser" permission by typing su and then enter, before typing this command.

Presumably, those who were "nominal" would become "slow" and those who were "slow" would become "faster", so on & so forth...

4.3 thingy. I doubt if those designations mean anything in real world, since mine is "Fastest" and I can't get -150mv stable.
[Nexus 4 General] larsonalux:
i have a "superuser" permission, reboot and this commando don't work, nexus 4 white from france REV 11 bootloader unlock and android 4.3 stock kernel stock
[Nexus 4 General] manpildo:
Exactly. I dont know if its a kernel issue or what, but -25mV global is the most I can squeeze out of a faster binning without any glitches. I could perhaps go a bit lower, but Antutu would crash at the beginning of a test when lower than -25, so thats a sign of unstability and therefore a no go. My CPU survived stress tests on up to -150mV (didnt try lower), but eventually I would get a GSOD during normal usage, rendering all the successful tests in the world useless.
[Nexus 4 General] andybfmv96:
I did. As u can see the terminal says root@mako. I just cleared the screen.
[Nexus 4 General] Fatherboard:
You should have a $ sign instead of #
[Nexus 4 General] itayc1123:
I got slow NOOOOOOOOOOOOO
[Nexus 4 General] danis26:
Mine is Faster
[Nexus 4 General] mimsiroll:
I got 4.. . what does 4 mean?

4.3 jss pa build
[Nexus 4 General] ernani1:
4 is fastest

Enviado de meu Nexus 4 usando Tapatalk 4
[Nexus 4 General] Naprzod:
<6>[ 0.256249] acpuclk-8064 acpuclk-8064: ACPU PVS: 1

Its Slow right? :crying: I turn on USB debuging and i send "take bug report" to my Gmail, and i only found that with the word PVS.
[Nexus 4 General] _GRIZZLY_:
On the android 4.3 you are nominal. On the 4.2 slow
[Nexus 4 General] EggShaarawy:
Fast:good::good:
[Nexus 4 General] gabo_e30:
Fastest
[Nexus 4 General] andybfmv96:
Wtf is this?
[Nexus 4 General] Madfysh:
And you followed instructions from first post and restarted your phone?
[Nexus 4 General] andybfmv96:
Yeah, I had terminal emulator since I installed cm10.2 and its been rebooted 5 times.
[Nexus 4 General] ArclightX:
It seems you have to reboot it after you grant terminal emulator SU rights for the first time (which I'm guessing, like me, was when you first followed this thread's instructions).

Once you've done that, re-enter the 2 commands from the OP and you should see the full result.

On that note my result was SLOW. Boo to that.
[Nexus 4 General] andybfmv96:
Got it... Faster I think. Right?
[Nexus 4 General] Snoon:
Same thing happened to me so you're not alone. :)

And btw my nexus behaves exactly like it did before the update.
[Nexus 4 General] lopri:
I get nothing after the reboot. My N4 is rooted on stock ROM/recovery. I use the terminal emulator that comes with Romtoolbox pro. What do I do?

Edit: Even the franco kernel says my cpu as "Unknown"
[Nexus 4 General] cobyman7035:
Does this code on the Nexus 7

Via Google voice Δ NeXus™ 7 FHD on Tapatalk²
[Nexus 4 General] Tanmaynarang:
Fastest. YAY! Also, I've never noticed my phone overheat, just saying.
[Nexus 4 General] sordna:
This happens if you try it after the phone has been running for a while. The dmesg buffer is limited and looses the older messages.

If you try the dmesg command right after a reboot, you will see the PVS value.

BTW I get "3", is that FAST ? Also, does each type mean the stock voltages are different? Are the stock voltages posted somewhere for each variation ?
[Nexus 4 General] _GRIZZLY_:
On the android 4.3 3=Faster
[Nexus 4 General] GEKTHEBOSS:
3 fast 4 is faster ;)
[Nexus 4 General] Richieboy67:
This CPU binning thing is so over dramatized. I think any differences are probably undetectable unless really, really going to extremes.
[Nexus 4 General] sordna:
Any idea about different stock voltages for each cpu variant ?
[Nexus 4 General] _GRIZZLY_:
On the android 4.3 Binning begin from 0

0-slow

....

3- faster

4-fastest

Few pages earlier Christian Troy wrote about binning in 4.3.

On the 4.2 begin from 1 so, Faster=4 ;)
[Nexus 4 General] franz777:
Your buffer has been overwritten.

Do it using "adb shell" from your PC:

0. Attach phone to PC and turn usb debugging on

1. Use console and run "./adb shell" command

2. Gain root access by typing "su" and confirming with enter (you will see "#" at end of prompt)

3. write "dmesg | grep PVS". this will return nothing now but it will remember in history under "up-key" for quick reference

4. write "reboot" and hit enter. look at screen.

5. As soon as you will see your rom booting try "up" key and enter to quick resolve previous "dmesg | grep PVS" command and hit enter

6. Try this several times until you see result. Mine is taking about 0.4sec after kernel started booting and gets overwriten after full bootup (when I unlock screen this cannot be queried)

7. Hit "helped" if helped :D

Cheers,

SE
[Nexus 4 General] GEKTHEBOSS:
Where you readed this??? And if really what is 1/2?
[Nexus 4 General] Kamikazy69:
got a 4... bought 2 days ago :D
[Nexus 4 General] _GRIZZLY_:
@2x up, i readed this on the page 111 ;)
[Nexus 4 General] montbazon:
Following his thread

1 is Nominal

2 is Fast on 4.3

Sent from NS GNex N4
[Nexus 4 General] edians:
mine says "Fast":D
[Nexus 4 General] Abaddon:
fastest right? Android 4.3
[Nexus 4 General] ZioGTS:
I got "3", faster right? I'm on stock 4.3.3.

Inviato dal mio Nexus 4 usando Tapatalk 4
[Nexus 4 General] zihh:
PVS 4 :)
[Nexus 4 General] beckham_totti:
i still cant get it to work since 4.2.2... :(:(:( it came back with something like this

what should i do?? :confused::confused::confused:
[Nexus 4 General] _GRIZZLY_:
@up, are you restarted phone?
[Nexus 4 General] sordna:
The dmesg buffer fills up pretty fast and loses the older messages. Try it again immediately after a reboot.
[Nexus 4 General] beckham_totti:
yayy... i got it working after a reboot... im on 4.3.. this what it came up..

its 4.3 so 3 meaning fast or faster??
[Nexus 4 General] sordna:
faster
[Nexus 4 General] beckham_totti:
with 4.3 we still got pvs = 4 for fastest is it? or 3 is the fastest ones??
[Nexus 4 General] exb0:
Can anyone confirm this?

I've had 3 nexus, two fast and one slow. I've noticed that my fasts don't take my undervolt very nicely compared to my slow. I could undervolt about -150 or -200 until it reaches 700uv or smth and it'l still work on my slow. It's also MUCH cooler. Doesn't heat up as much.

My fast comes with a lower voltage from stock, but it gets hot really quickly and doesn't seem to like the undervolt that much. Reboots quite often.

Before you ask, all of the devices are running exactly the same rom, same kernel and almost identical apps inside.
[Nexus 4 General] C4SCA:
Fast
[Nexus 4 General] Waldos:
Nice research!! I have a Nominal and you are right. :)
[Nexus 4 General] Abaddon:
I've got 4 and I think it's one of the fastest.

edit: pressed thanks accidentally lol :p
[Nexus 4 General] imperator01:
302-

rev 11-

Psv=4 (fastest)

Runs pretty hot on stock rom/kernel,but cold as ice with semaphore kernel.
[Nexus 4 General] theorlyowl:
It says "3" for me, what does that mean ?
[Nexus 4 General] gtg465x:
UH! UH! Now I ain't sayin' she a gold digger... :highfive:
[Nexus 4 General] dpaul007:
Fast. 8GB. Ordered at launch and received a week later.
[Nexus 4 General] joshnichols189:
I seriously don't understand why people are like "nominal... :(((((" it isn't a huge deal and most people wont even notice it.

FWIW mine is nominal.
[Nexus 4 General] IAmAN00bie:
Mine is Nominal too. And yeah, it isn't a big deal at all what type you have.. I even specified the differences are very minimal in the OP, but it doesn't seem like a lot of people read that lol.
[Nexus 4 General] Eric-1987:
Can we get some sort of proof that nominal, fast, faster, and fastest makes a difference? Benchmarks? OC?
[Nexus 4 General] jacklebott:
Wait, "Fastest"? That'd better be shopped
[Nexus 4 General] tgtoys:
Fast.

Ordered on release day, shipped 3 weeks later.
[Nexus 4 General] FatalityBoyZahy:
I got faster with my RMA. Arrived on November 29th, 2012.
[Nexus 4 General] droidmeup:
I have nominal and I'm not bothered about it. I have been using it for a week with no defect like warming up,yellow tint,front and rear scratches,rattle noises and audio. So I'm happy with my perfect N4 :)
[Nexus 4 General] FatalityBoyZahy:
It's threads like these which make people worry and complain about their devices.
[Nexus 4 General] ChongoDroid:
Would be funny if his rma device was slow lol

Sent from my Nexus 4
[Nexus 4 General] ptesmoke:
This is my UV so far on my "faster" binned n4. Running for 48 hours stable so far.
[Nexus 4 General] Raikyure:
Also "faster" and I'm using the same UV as you. Works nicely.
[Nexus 4 General] wngmv:
fast.
[Nexus 4 General] IAmAN00bie:
People will always find something to complain about, that's their own fault.

Sent from my Nexus 4
[Nexus 4 General] lwfb:
I got "fast" also.

I don't see how it matters much though... I don't under volt anymore than my kernel's default. Good to know I can push it though I guess.
[Nexus 4 General] Endoran:
I'm fairly certain he's being sarcastic people.

Sent from my Nexus 4
[Nexus 4 General] ptesmoke:
Haha very nice! *borat voice*
[Nexus 4 General] CreamyNougat:
Mine says fast, 16GB ordered on November 27th, received a week later.
[Nexus 4 General] californiarailroader:
Mine says "Faster".
[Nexus 4 General] sordna:
FASTER
[Nexus 4 General] theorlyowl:
Okay, thanks alot :)

Is there an explanation for why some people get the actual string "slow","fast" etc and others get the number ?
[Nexus 4 General] sordna:
Depends on your android version, it used to be a word, but on latest version you get a number.
[Nexus 4 General] theoh88:
3 = FASTER ?
[Nexus 4 General] ronaldo-9:
Hello ..

my cpu type is NOMINAL ..

on the Android 4.3 is : SLOW

But on Cm 10.1.2 is : Nominal

What is the difference ?

which is the better ??

Nominal is better or slow ??

thank you ..
[Nexus 4 General] tatnai:
1 for me, I suppose slow.
[Nexus 4 General] TheArt.:
I got PVS 3 running 4.3 stock ROM

Sent from my NeXuS 4
[Nexus 4 General] andrewk2x:
What uv you have on fastest??

Στάλθηκε από το Nexus 4 μου
[Nexus 4 General] CamoGeko:
Yep.

Nominal is better.
[Nexus 4 General] carlos67:
Just done mine and it says "faster" :D. I'm still on 4.2.2 - what is the scale for 4.2.2?

Was contemplating RMA'ing it because of the tiniest of blemishes on the silver bezel near the earpiece but I think I'll keep it now. Knowing my luck, a replacement would be worse and the binning also worse. I think this Nexus is a keeper for me. I can live with the blemish cos you have to look very closely and only in certain lighting.

Peace :)
[Nexus 4 General] :
Fastest here. I can handle -150mv easily with no problems (at least from what I noticed).
[Nexus 4 General] EggShaarawy:
Does it work on new Nexus 7?

Anyone reporting from new Nexus 7?:good:
[Nexus 4 General] CamoGeko:
Perhaps you should ask in the N7 forums lol
[Nexus 4 General] :
Yeah it works. I don't think there's a thread in the 7 forums about binning though.
[Nexus 4 General] Tommy-Geenexus:
It works for every s4 pro/600 device, for my xperia z too.

Wrong forum, but Fastest btw ;)
[Nexus 4 General] konandram:
PVS 4 on 4.2.2 rom :)

Sent from my phone
[Nexus 4 General] gdekatt:
FAST according to FKU on stock 4.3 ROM
[Nexus 4 General] memi_pt:
one person tell me:

Is it random? Any relationship between Cpu type and SN or IMEI?
[Nexus 4 General] Oxious119:
I'm confused.
[Nexus 4 General] sordna:
your buffer is gone, reboot you phone and do it immediately
[Nexus 4 General] Oxious119:
But I've been running at -100mv UV for over a day now without issues.
[Nexus 4 General] memi_pt:
u0_a98@mako:/ $ su

root@mako:/ # dmesg | grep PVS

dmesg | grep PVS

<6>[ 0.994262] acpuclk-8064 acpuclk-8064: ACPU PVS: 0

root@mako:/ #

-------------------------------------------

0??!!

what it means?? no CPU???
[Nexus 4 General] GEKTHEBOSS:
I think its extra slow!(im joking):D:p:sly:
[Nexus 4 General] Stark X:
I got 4 !!
[Nexus 4 General] nicods:
Does anyone know if it's possible to do the same for the almost identical LG E975 (Optimus G)? I tried the same procedure and it doesn't work.

I tried to ask in LG optimus G forum and I had no answer, I hope I'm not bothering anyone if I try to ask here.
[Nexus 4 General] RASTAVIPER:
Franco Kernel updater application gives directly the info of CPU binning.

Mine is Nominal and so far -75 works fine.
[Nexus 4 General] Stark X:
There's even a way to see without root !

Reboot your device twice ! Then using any file manager you like open system/proc/last_kmsg open it and search 'acpu' it will give you the number :)
[Nexus 4 General] Muikkuman:
2 on my nexus 7 2013
[Nexus 4 General] RUGGNATION:
I just bought my Nexus 4 last week, my PVS says 1. Is this something I should be concerned about enough to try and return it for a different one? Looks like almost no one got slow.
[Nexus 4 General] jadeisjaded:
Just as an update, my slow-binned cpu is now undervolted to -200mv everywhere, and running stable after multiple benchmarks and days of use :) (1512mhz @ 1000mv, etc)

So if your cpu is binned as slow, don't desperate! Just try out voltages and see what works for you.