yashsingh1/xdaforums huggingface dataset:
[Nexus 5 General] cephaus:
PVS 1 here, cant undervolt more than -50mv without the phone locking up. even tried -62.5mv with the same results.
[Nexus 5 General] modstorm:
That's because the CPU runs at a lower stock voltage by stock. Say for example a PVS 1 runs at 825mv and a PVS 2 runs at 800. A -75mv undervolt will make the PVS 1 run at 750mv while making the PVS2 run at 725. So basically even though you're undervolting both chips by 75mv, the higher binned chip will be running at a lower frequency.
[Nexus 5 General] bloot:
Oh then this refutes my theory I'm afraid, not every PVS 1 lets undervolt the same. :D

But i had readed people with higher PVS that could afford a little undervolt, that's why I thought that. I guess I am lucky as mine lets me a good amount of undervolting despite being PVS 1.
[Nexus 5 General] jtdc:
mine is PVS 2. i've to know what advantage this has to give by backreading. but i intend to stay closest to stock (aside from rooting for now).
[Nexus 5 General] SplitCold:
thanks, that worked.

PVS 3
[Nexus 5 General] bblzd:
Wow this couldn't be any simpler and should be edited in to the OP.

PVS 3 with this method.
[Nexus 5 General] racoroiu:
Trying to find the PVS as per instructions but this is what happens. What did I do wrong?
[Nexus 5 General] Gormsen:
Okay, so it seems that all binnings can undervolt to the same amount of mv.. In most cases.

So how about looking at overclocking. On the One X there was a difference in how much one could overclock depending on the variant (binning) of the CPU.

Sent from my Nexus 5
[Nexus 5 General] rizocreations:
PVS 3

Handling -87.5 like a boss.
[Nexus 5 General] modstorm:
Probably true, mine goes down to -75 and locks up at -100.
[Nexus 5 General] Tw1tchy:
PVS 0 here.... Can undervolt - 100 without any problems though. Overall performance is lacking though. Could it be a possibility that it was binned wrong? Like 2265Mhz at voltage 1100 is pretty low.
[Nexus 5 General] riDDimann:
I was looking forward to this... until it came out PVS 0 :(

Trying -100 mV now, see how that works out.
[Nexus 5 General] Tomatot-:
PSV 0

Can't go further than -100mV
[Nexus 5 General] jackfrost909:
Stock and unrooted and RMAing due to crap speaker so can't test any UV but my PVS is 2.
[Nexus 5 General] modstorm:
Both my PVS 1 and PVS 4 could run at a maximum of 2806MHz, anything higher than that caused the phone to not boot.
[Nexus 5 General] proxuser:
I think we can use pvs6 voltages to all pvs's with a kernel. there will be not any issues because pvs0 owners tell they can uv their devices max 100mv.

Its not hard to do this, we can request a kernel from developers, that they includes pvs6 voltage level to all pvs's on original clocks 300-2265mhz. When no dev is interested, then I may test it myself ;)

then nobody needs feel bad about this pvs race :)

my n5 is pvs3.
[Nexus 5 General] Tw1tchy:
I would be interested in something like this. My device stability is completely fine but it's just a little slower than a high PVS N5.

My Nexus 5 vs. My HTC One and my HTC One isn't much slower. PVS 3 Snapdragon 600 at 2Ghz vs PVS 0 Snapdragon 800 at 2.6Ghz. Both CPU'S aren't very different though.
[Nexus 5 General] dark_ente:
I have bin 3 but can also run [MENTION=5221426]950[/MENTION] mV. Haven't tried lower
[Nexus 5 General] RussianBear:
POLL

POLL

Ya'll were so prompt to pick up a d* swinging contest with the leading numbers from that grep command that don't mean jack, but can't keep a rolling poll going? lol

I have an Excel file (that has the graphs below) that I can share, if people can maintain it.

I'm hungover and the new numbers are in:

PVS 0 total 15

PVS 1 total 21

PVS 2 total 54

PVS 3 total 59

PVS 4 total 42

PVS 5 total 4

PVS 6 total 0

Just posting your PVS number is not going to show the total distribution.
[Nexus 5 General] thegr8anand:
310k, Bin 1, PVS 3
[Nexus 5 General] Ender666666:
Pvs: 4

0.457368

---------- Post added at 11:05 PM ---------- Previous post was at 11:04 PM ----------

Pvs: 4

0.457368
[Nexus 5 General] m52 power!:
311k pvs1. FYI I can run 3ghz fine, not 1 reboot. Running 2.5ghz DD though...
[Nexus 5 General] cobyman7035:
Not one PVS 6?

Via Google voice Δ |\|€×u$™ 7 FHD on Tapatalk²
[Nexus 5 General] ottoman2:
I have PVS 0 and can only undervolt by 50mv, everything lower and the phone reboots. Maybe next time don't think that 2 PVS 0 owners equal all PVS 0 owners.
[Nexus 5 General] The Gingerbread Man:
I exchanged my phone due to the camera being faulty. My original nexus 5 was PVS 3, my new one is a 2. At least the camera works for now which is more important.
[Nexus 5 General] tien99:
PVS 4 here but I can't go lower than -75mV :confused:
[Nexus 5 General] P.Mobile:
im PVS 3 but i dont UV or OV ever :)
[Nexus 5 General] akaHardison:
Same here.I am using showp's kernel.I can't UV too much.I just want stable.
[Nexus 5 General] Darkendvoid88:
Well I won the UPS Logistics lottery and got my 32gb black I ordered on Nov 12th today. It seems I lost the CPU lottery though, PVS 0 :(
[Nexus 5 General] Tw1tchy:
Trust me PVS binning is BS. I can OC to 2.7Ghz and UV at -100 across the board. I can OC to 3Ghz too but is somewhat unstable, can't UV and I must have a heat throttle on because it will reboot if it over heats.
[Nexus 5 General] venturizhou:
I wouldn't say it's bull**** but I wouldn't say it matters a whole lot either. For example me having a PVS 4 my default at 2265 is 1000 and then I can -50UV to 950mV so it does carry some weight.
[Nexus 5 General] ogboot:
Gave up on UV. My PVS4 won't even tolerate -12.5 for more than a couple hours. I'll OC when I finally decide I want to know what it feels like for the device to melt in my hand.
[Nexus 5 General] wklie:
PVS 2 on my unit that will be returned (5 dead pixels).
[Nexus 5 General] graffix31:
I'm PVS 0 with .459
[Nexus 5 General] ImDaiLow:
Rooted here. I can't do it. I got this after I enter the commands.

1|root@hammerhead: #

I rebooted; no change.
[Nexus 5 General] Grondinm:
mine seems to come out empty as well like above. Does this only work with stock kernels? It's the only thing i can think off but it still don't make sense...

edit: After a reboot it worked i have got PVS 1
[Nexus 5 General] ImDaiLow:
Franco kernel and stock
[Nexus 5 General] Grondinm:
from a fresh boot..??
[Nexus 5 General] andrx:
PVS 2
[Nexus 5 General] docah:
Details:

PVS 2

Rooted Stock Rom

Franco r14 kernel

I'm running a -50 under volt across the board.

300mhz @ 725mV

2265mhz @ 1000mV
[Nexus 5 General] jaszypoo:
PVS 1 ... 0.431

Rooted + Stock Rom

Franco r12

Nexus 5 32GB Black
[Nexus 5 General] ImDaiLow:
How do i clean boot? wipe data then boot?
[Nexus 5 General] Grondinm:
no no just reboot and run the commands right away
[Nexus 5 General] MrGriffdude:
PVS 2
[Nexus 5 General] ImDaiLow:
GOT IT! Thanks. So, PVS: 3.

running franco kernel, stock rom. i am able to -75 with no issue
[Nexus 5 General] :
well I have a note 3. Mine is PVS 2 but I can set the lowest voltage to 925 at 2.3 ghz. It crashes at 900.

Means 125 UV . I can run benchmarks, phone doesn't reboot and get 30400 in quadrant (overclocked to 2.8 ghz).

So a PVS 6 is supposed to be even better ? how low exactly can a PVS 6 go in undervolting.
[Nexus 5 General] Farril:
I got PVS: 4 on mine. :good:
[Nexus 5 General] gonzalo8642:
what does it mean?

I have to screenshots. One was the first one I took after downloading terminal emulator and the one with .369 is the one after I rebooted my phone. From what I read, 0 is the slowest. Is this true?
[Nexus 5 General] kasper19:
PVS: 4 for me. Interesting, I ordered launch day at 2:30pm EST.
[Nexus 5 General] handsomejesus:
Here's mine, can anyone explain a little to as what the numbers mean? (.88) and I take it PVS 3 would be second best?
[Nexus 5 General] efan3719:
PVS 2 here.
[Nexus 5 General] thegtfusion:
PVS1 here. i had a lot of problems on stock, i got several sleep of death's (even on the charger) , and also reboots. (stock unrooted, locked bootloader). I sent it back , hoping to get a new one.
[Nexus 5 General] dr2001:
PVS 3.

Using ElementX 0.11 Kernel with 700mV core voltage @ 300MHz only. Seems OK. (ElementX seems only under voltage at 300MHz when idle.)
[Nexus 5 General] iPsychoGeek:
PVS1 here.
[Nexus 5 General] iwebsource:
PVS 1 here.

I'm not sure I understand what exactley this test means or what it represents.

I have a Nexus 5, which is running the Cataclysm ROM, stock kernel.

Wondering how my device only gets PVS 1, or what has impact on this score?
[Nexus 5 General] DXM31:
PVS 4 stock rooted
[Nexus 5 General] aSquard:
PVS 2 According to Trinity Toolbox (White 32GB Nexu5)
[Nexus 5 General] jtwlbz:
Don't worry about you getting.lower numbers. Mean nothinh. Some do undervolt a little that makes so little you don't bother.
[Nexus 5 General] wklie:
My replacement unit (having a lower serial and IMEI than the original unit) has PVS 3.
[Nexus 5 General] lineager:
Me too! my original unit has PVS 1. The replacement unit has PVS 3.:p
[Nexus 5 General] Apokalypzx:
PVS 0

...got my phone from Google play, but might as well have gotten it from walmart...damn.
[Nexus 5 General] hithereperson:
I ran this command after a reboot and got PVS 2, the time it took to return something was around 0.457, so I don't think that time matters a lot!?
[Nexus 5 General] DiamondBond:
Got PVS1... Slow chip i take it? :)
[Nexus 5 General] CyberScopes:
PVS 2.

Sent from my GN5 [D821]
[Nexus 5 General] klin1344:
PVS 1 here
[Nexus 5 General] CrypticRook:
PVS3 lot better luck here. Had a slow binned nexus 4
[Nexus 5 General] Barracuda77777:
PVS3, on the first one that I bought, did an RMA and got another PVS3.
[Nexus 5 General] rayz93:
Hey OP, I recommend making a poll to show the frequency of PVS N5 users are getting on their phone. :)

So here's my settings:

-PVS: 3

-Android 4.4.1

-Franco Kernel r19

-300Mhz 725mV

-2263Mhz 975mV

-rest of the settings stock

Test:

300Mhz - 700mV

2263Mhz - 950mV

ran fine at first, 2 days without issue, even tried running stress test for 15mins on SetCPU, so I assume it was stable. But then it suddenly decide to crash (reboot) when I browsing on chrome (downloading a 1080p wallpaper).
[Nexus 5 General] rikudo:
PVS 2 here, my Nexus is smooth like butta.
[Nexus 5 General] xstokerx:
PVS 4 I take that means its a stable chip?
[Nexus 5 General] CPaladin:
PVS 1, ooops I guess
[Nexus 5 General] klin1344:
Not stable, but just more undervolted by default compared to others.
[Nexus 5 General] mistahseller:
Am I stupid?

Dmesg *pipe* grep PVS returns nothing.

:(

Sent from my Nexus 5
[Nexus 5 General] 5aaled:
Same here ?!
[Nexus 5 General] :
Reboot and try again
[Nexus 5 General] mistahseller:
Same return this bothers me because now I want to know!
[Nexus 5 General] Seattleite:
Had the same issue myself. Closed the existing terminal, swiped it from recent apps, reloaded, and worked like a champ. Hope this helps...
[Nexus 5 General] Richieboy67:
Oh no, this again. :banghead:
[Nexus 5 General] pgptheoriginal:
Pvs: 2; 0.463210 here :)
[Nexus 5 General] xotry:
Undervolt is automatically related to overclock.

That means that with the same voltage, you can run at higher clocks.
[Nexus 5 General] Mr0czny:
And what app you guys recomend to test stability after uV ?
[Nexus 5 General] klin1344:
I just run a few benchmarks, and if it can get through without crashing then I know that it's pretty stable.
[Nexus 5 General] int abacus:
TricksterMOD, Franco Kernel updater, Faux Kernel Enhancement Pro, Trinity Kernel Toolbox, SetCPU etc...
[Nexus 5 General] kasper19:
To give you something to compare to:

-PVS: 4

-Android 4.4.2

-Franco Kernel r23

-300Mhz 725mV

-2263Mhz 950mV

Pretty much running -50mV across the board on all voltages. Running Cataclysm ROM.
[Nexus 5 General] iPsychoGeek:
Franco r24. PVS 1.

300MHz works stable at 675mV. 650mV is reboot.

-50mV global is stable. -75mV reboot.
[Nexus 5 General] PainfulLover:
Doesn't work. Any suggestions?
[Nexus 5 General] nexusmaniac:
I don't get the message :(

Edit - never mind, reboot fixed it :) PVS 2 :)
[Nexus 5 General] Westi01:
0,927922 with PVS3 here. Is this good or bad? :D
[Nexus 5 General] Skinpipe:
i got pvs 0 i ran it again and i got 0 so 0 it is then.:good:
[Nexus 5 General] klin1344:
That is decent. Better than PVS 0,1, or 2 at least :)
[Nexus 5 General] UnknownzD:
Damn I hate my CPU to be PVS 2 only :(

Google should gives me a PVS 3 / 4 in later batch (312K) instead :(

Can't believe that it still sticks to PVS 2 only :(

I will give it on more try on my gf's 311K device.
[Nexus 5 General] bloot:
Are you saying you just ordered a replacement just for getting a higher PVS? :eek:

And you are going to do the same with your girlfriend's. I don't understand you people.

Mine's PVS 1 with no flaws, because a low PVS is not a flaw at all.
[Nexus 5 General] patriotaus:
perhaps this is only an issue for people who had only just installed terminal for try this out. i.e. maybe everyone else already had terminal and had rebooted? just hypothesising.

I rebooted and it worked (fresh install of terminal).

0.4589641 - PVS 3 (nothing to whinge about I suppose)
[Nexus 5 General] JHATDROID:
Nah, I've had it installed for about a day and rebooted a few times already.
[Nexus 5 General] compchick813:
PVS 3 here
[Nexus 5 General] F120:
PVS: 4

Got around 0.538 originally but after a reboot it's 0.457 so I don't think the return speed means too much.
[Nexus 5 General] apristel:
u0_a77@hammerhead:/ $ su

root@hammerhead:/ # dmesg | grep PVS

<6>[ 0.911081] acpuclk-8974 qcom,acpuclk.30: ACPU PVS: 1

root@hammerhead:/ # dmesg | grep PVS

<6>[ 0.911081] acpuclk-8974 qcom,acpuclk.30: ACPU PVS: 1

root@hammerhead:/ #

Screenshot:

https://db.tt/7mzdmEV4
[Nexus 5 General] anuraj1:
I came from a Verizon Galaxy Nexus so I'm not familiar with this... so the higher the PVS the better the overclock ability?

EDIT: Sorry, it was answered above!
[Nexus 5 General] kaywalker23:
PVS 1
[Nexus 5 General] aeppacher:
what specifically does the return time mean? I got PVS 2 and 0.457

for my gs3 I got a PVS 3 and 0.329

roommate got PVS 3 on his nexus 5
[Nexus 5 General] RussianBear:
Nothing lol just proves how easy it is to get people to compete in anything remotely resembling a competition :)
[Nexus 5 General] koriflame:
I got PVS 3 and 0.458 ... is that good? I don't understand the scale. :)
[Nexus 5 General] anactoraaron:
PVS 1 returned in .0484

Sent from my Nexus 5... yeah... my Nexus 5 :)
[Nexus 5 General] vladm7:
time in the brackets means absolutely nothing related to CPU OC/UV capability: it's a time-stamp (seconds since power on) in the system log at what point kernel recorded PVS value.
[Nexus 5 General] Beachbum2049:
PVS 4
[Nexus 5 General] deanesn:
2 here crappy as my nexus 4 lol
[Nexus 5 General] cephaus:
sorry to come across as ignorant or uninformed. but, wtf is this PVS value
[Nexus 5 General] gee2012:
The level/number of the cpu binning determines how much you can undervolt, a high number/level indicates you can undervolt more then with a low number/level. Lower voltages mean less heat building and better performance of the cpu.

Here`s some info from another thread:

Qualcomm makes the APQ8064 chip that you see in our Oppo Find 5, there are 4 different "types" based on how it meets their quality standards. These are Slow, Nominal, Fast, and Faster. The main difference IIRC between these types is how stable each can handle undervolting. CPUs that are "Fast" for example come pre-configured at a lower nominal voltage than a "Nominal" type CPU, and more so than a "Slow" type. (Does this account for how some people's phones generate less heat? Maybe, maybe not. IIRC, there's like only a -100mV difference between Faster and Slow out of the box, however Faster CPUs should be able to handle lower voltages than Slow-type.)
[Nexus 5 General] jackpf:
Is it possible to run this command via adb without root?
[Nexus 5 General] gee2012:
No, you need root.
[Nexus 5 General] expertzero1:
I remember the lower the bin, the more you can undervolt, higher the bin the more you can overclock I think.

I have a 2
[Nexus 5 General] Gormsen:
PSV: 4

Guess I'm gonna have some fun tweaking and undervolting :D

Sent from my Nexus 5
[Nexus 5 General] klin1344:
Same with me...I have a PVS 1 with no flaws and I still get very good battery life. I honestly don't think that which CPU bin you get matters too much. If you look at the source code for the kernel the voltage table between PVS 0 to PVS 6 is not really that much, and when I undervolt I basically have the same voltage as a PVS 4 chip.
[Nexus 5 General] Citizen_Snips:
+1 same. PVS1. Plus if you RMA a 2 who's to say you won't get a 0 or 1? :p
[Nexus 5 General] Connorh333:
I don't know if this is a universal thing or what but it doesn't work on my htc one.

no outcome
[Nexus 5 General] Sn00ky:
PVS 2 here will try UV soon
[Nexus 5 General] pitjago74:
Psv2..so nominal... Like my N4....:D:D:D

Enviado desde mi Nexus 5 mediante Tapatalk
[Nexus 5 General] privat75:
PVS 0 :(

Gesendet von meinem Nexus 5 mit Tapatalk
[Nexus 5 General] zioxda:
PVS 1. Undervolted 725, no problem at all
[Nexus 5 General] PainfulLover:
Can't get a reading on a custom rom. My other nexus 5 stock/franco shows pvs 3.
[Nexus 5 General] skeeterfood:
PVS 3
[Nexus 5 General] francescobabbaro:
PVS 1 here...
[Nexus 5 General] UnknownzD:
I didn't RMA any phone at all ...... I have purchased 2 Nexus 5 in different time schedule, as the black one was out of stock in November, while white one was available in the stock.

By the way, it is funny to see that although Google say that the black Nexus 5 will be shipped by 5th of January (at least 2 - 3 weeks), but at the end, it has arrived to my home in just 1 day, the next day after making the order lol
[Nexus 5 General] Laurentyu1995:
My S/N begins with 310K and i don't have problems with it :D
[Nexus 5 General] jtwlbz:
I got pvs 1. I got antutu 35000. I don't care about undervolting cuz it does almost nothing. I am happy.
[Nexus 5 General] vesu:
Is there a way to check pvs without root? If I remeber correctly, in some devices you were able to check it from some file after rebooting your phone twice.
[Nexus 5 General] :
Hi,

Try this:

:)
[Nexus 5 General] vesu:
Thanks but there is no last_ksmg file. Since there is no reboot option, I just powered off and on phone twice but no luck.
[Nexus 5 General] productofusa:
PVS 4, running Franco Kernal Updater and getting fantastic battery without changing any settings.

Got pretty terrible battery before KOT49H and installing FKU.
[Nexus 5 General] cobyman7035:
What's your setup?

Via my NeXus™ 7 FHD on XDA premium app
[Nexus 5 General] kssood:
What m i doing wrong here(cm 11 20131912)
[Nexus 5 General] ericjslee:
PVS 3. Global -50 works just fine. -75 reboots within 10 seconds upon application.
[Nexus 5 General] apoalex:
0.320... pvs 2 :) but i hit 39527 in antutu at 2.419ghz so it's really capable.
[Nexus 5 General] slv96:
pvs 3, uv -50, all fine! :)
[Nexus 5 General] 1337RYoN:
0.762, PVS 2. I don't really think it matters because it's flying UC to 1.5 GHz haha
[Nexus 5 General] daniel84cs:
PVS 3 stock rom Franco Kernel R25

Global UV -85

300 MHz 625 Mv

422 MHz 635 Mv

Inviato dal mio Nexus 5 utilizzando Tapatalk
[Nexus 5 General] DutchDennis:
PVS 2

Got 0,616359 PVS 2

before reboot it was different. Is it possible that with every reboot, another core is used as the ´first to approach´ core? In my eyes this is smart, because there are not always 4 cores running and if 1 core is always the first to approach, this will do much more than the last to approach core.

Or is this all blabla what I'm saying?:p

EDIT:

I guess it's blabla. Run this command for 5 reboots and all where different. If my theory was true, the fift would be the same as the first.

This are the results, al of them were PVS 2 ;(

0.616359

0.604338

0.596764

0.594674

0.594968
[Nexus 5 General] TJKV:
Lol people will jump at anything to compare performance. Those decimal numbers are NOT some kind of performance indicator, they are just a timestamp of when that mesage got outputted to the kernel log. That time obviously varies randomly.

To give an analogy: Do you wake up at the exactly same milisecond everyday? Brush your teeth at exactly the same milisecond everyday? I bet not. So give your phones a break!
[Nexus 5 General] dandwhelan:
Pvs 3. Not sure what that means
[Nexus 5 General] jerrylzy:
I think "PVS" is the abbreviation of "Process Voltage Scaling". Qualcomm thus gives each chip its own voltage based on its electrical properties. http://xdaforums.com/showpost.php?p=47573847&postcount=247 Turbotab explained very clearly.

There are actually 8 PVS bins, ranging from 0-7(yes, there is pvs 7, which uses the same voltage table as pvs 6)

Some people do have a good chip which has only a low PVS bin because there are certian chances that Qualcomm mistakenly tagged the PVS bin. But it does not necessarily mean the PVS binning is BS.

If you look at the overall experience, higher PVS bins, by many reports, often score less in benchmarks, but stay at a comparatively low temperature.

[MENTION=4041989]Turbotab[/MENTION]

So this is another thing interesting. If PVS really means Process Voltage Scaling, and a higher PVS bin means FAST corners, a higher PVS bin should not have less benchmark scores than a lower PVS bin chip does.

I posted a question about PVS in Qualcomm Developer forum, but no one replied to me till now.
[Nexus 5 General] ZacksBuilds:
Mine won't work. It just shows a empty line after I input the command.

Device: Nexus 5 16gb Black

ROM: AOSPA 4.0BETA w/ Franco r25
[Nexus 5 General] dandwhelan:
Reboot then try it. Make sure pvs is in caps
[Nexus 5 General] ZacksBuilds:
I've tried it multiple times now.

Device: Nexus 5 16gb Black

ROM: AOSPA 4.0BETA w/ Franco r25
[Nexus 5 General] SurenSeven:
OK i can't figure out why it's not working for me either. Have root, tried rebooting but nothing

Edit: a second reboot got it working. I m not sure but i think i did a soft reboot the first time. Not sure how that is relevant though:P
[Nexus 5 General] ock:
Isn't the "1 |" in front of root@hammerhead what you are looking for?
[Nexus 5 General] SurenSeven:
Sorry.. what??
[Nexus 5 General] Madpiercing:
Hello, unfortunately 1 here.

Can't really comment to my undervolt limit since im in the process of testing it, but so far i'm at -75 mv global at stock frequencies and the phone it's rock solid and buttery smooth

As far as performance go, after reading this thread i ran an antutu and a 3d mark unlimited; got 34463 on antutu and 17900 and something on 3dmark.

Battery drain is 1%/3h on idle and around 28%/1,5h SOT with benchmarking and web browsing on wi-fi, notifications and sync on, gps and geolocation off.

I'm on cataclysm, linaro kernel, dalvik/bionic optimizations and odexed system and framewok.

Hope this help the data collecting :)
[Nexus 5 General] SurenSeven:
Why you gotta talk like that man?? o_O

Freaking me out
[Nexus 5 General] Madpiercing:
Don't worry, what he said it's theoretically true and something to be said as a sort of disclaimer, but if you're smart and undervolt in small steps, testing every single frequency stability, the risk of doing something reallly bad is very very very low (but not absent). Do your tests with a grain of salt ;)
[Nexus 5 General] californiarailroader:
PVS 1 here.