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Posted (edited) · Original PosterOP

 

While folding on my 2700X on a Gigabyte x470 AORUS Gaming 5 I noticed in HWMonitor that one of the MoBo temp sensors is reaching 85+ celsius, so I got to BIOS and tinkered with voltage and set it to normal instead of auto, I succeeded the sensor now reads 75 so I tried lowering the VDDP further (I went to straight to negative 0.300v) and it wouldn't boot just a black screen for a few minutes.
I tried rebooting but still nothing so I tested all components single stick of RAM, no RAM, switched the GPU attempted to clear BIOS but no avail, Then I noticed on the MoBo that CPU led is lit (in a bad way LoL) my heart sank so I tried my CPU on two other MoBo's (one is an A320 and a X370 both support 2700X with latest BIOS updates) but it was conformed my beloved 2700X is DEAD.
So as JonTron said it "I have several questions" two to be precise
1\ Did any one killed his\her CPU by undervolting before?
2\ Can I RMA my CPU and/or MoBo? (I followed the instruction on how to clear the bios but am scared to test the MoBo with another with it)

Edited by Game_Hustla
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Undervolting don't break stuff, it's something else. The 2700X being faulty from the factory for example.


Studying abroad, ditched the crappy laptop for a mobile workstation/gaming laptop double Hate the thermal paste and memory timings

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V undervolt) GPU: GTX 1060 6GB Mobile (1696MHz 0.812V ~ 1860MHz 0.95V) RAM: 12GB DDR4-2666 19-19-19-43 2T Storage: 128GB Toshiba NVMe SSD (KBG30ZMV128G) + 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) Monitor: 1080p 120Hz IPS G-sync

 

The best thing to do is reading the clock speed that doesnt end in a pair of zeros. Software voltage readings are wrong if your motherboard's not a high end model

CPU: i7-2600K 4493MHz (multiplier: 43x) 1.35V (software) --> 1.4V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 104.5MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 10-11-11-30 2T 2133MHz, custom: 10-11-10-30 1T 2229MHz) GPU: Asus GTX 1070 Dual SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (OC'd 150Hz) TN Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Results: Cinebench R15 Single thread:159 Multi-thread: 770 (thx Meltdown Spectre patch) Super Pi (v1.5 from Techpowerup, PI value output) 16K: 0.11s 1M: 8.4s 32M: 7m 45.9s

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...all that and you didn't reset CMOS?

 

i have never heard of an undervolt killing silicon.


FS / US:  EVGA 1070 FTW ($325)

https://linustechtips.com/main/topic/971428-fs-us-2-evga-1070-sc-1-1070-ftw/

 

 

System specs:

Asus X470 Prime

Ryzen 1700X

Corsair Vengence RGB 2x16GB

Crucial MX500 512 SSD

EVGA GTX1080ti w/G12 H115i cooler

BQ! PureRock CPU Cooler

Phanteks P400 Case (no front cover)
 

 

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48 minutes ago, Game_Hustla said:

While folding on my 2700X on a Gigabyte x470 AORUS Gaming 5 I noticed HWMonitor the one of the MoBo temp sensors is reaching 85+ celsius

That measurement was most likely for the VRM, the DC-DC converter that converts 12v into the voltage the processor wants (1.42v max)

 

The components in that circuit are rated for maximum 150 degrees Celsius but the motherboard uses a heatsink that's big enough to keep the temperatures in that area below around 100 degrees Celsius. Above 100-110 degrees Celsius, over long periods of time as in weeks or months, problems with the printed circuit board can occur in that area so most motherboard manufacturers will put some protections and mechanism to keep the temperature below 100 degrees celsius.

At over 100 degrees, your motherboard's BIOS would probably start to throttle down the CPU (force it to reduce the frequency of some cores), in order to reduce the load on the VRM and therefore giving the VRM time to reduce its temperature.

 

There's not much benefit to keep the temperature really low, so 85 degrees Celsius for your motherboard was perfectly fine temperature, if that was for your VRM.

 

Unplug your pc, remove bios battery, wait a few seconds.. put it back and plug the pc.. Go in bios and set the defaults.

Should start.

 

I may be wrong, but I think undervolting can affect the memory controller part of the chip, or the pci-e controller inside the chip, so that could make the system not boot if those don't initialize.

I sincerely doubt you killed the processor itself.

 

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severely doubt you killed anything by undervolting, electrical components dont work like that. 

 

And as stated above, all that work and you didnt reset the cmos? Try that first.


I refuse to read threads whose author does not know how to remove the caps lock! 

— Grumpy old man

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Posted · Original PosterOP

Thanks for the replies as I stated I tried to clear the bios it was sitting without a battery and disconnected from anything not even USB devices for several hours but the CPU led was still lit also I tested the CPU with 2 other boards an A320 and a X370 both BIOS are updated to the latest but still black screen

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Undervolting is so safe that the first step in testing components in historical computing equipment (which is shockingly rare and irreplaceable) is to connect them to a variable power supply and slowly raise the voltage while watching the output to see if you like it or not.

There is only one similar case that I can find on google, which happened with a Haswell processor. The real test here would be installing a known working processor into the motherboard you were undervolting with. If you can get into BIOS then, then you can be relatively sure that the processor is the problem.

I guess the next question is: Are you absolutely certain that the other motherboards are good and that they will actually boot with the 2700x? As in, have you tried using your 2700x with those motherboards before, and when is the last time those motherboards successfully booted?

 

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Posted (edited) · Original PosterOP
1 hour ago, straight_stewie said:

I guess the next question is: Are you absolutely certain that the other motherboards are good and that they will actually boot with the 2700x? As in, have you tried using your 2700x with those motherboards before, and when is the last time those motherboards successfully booted?

 

the A320 board is a working PC with 1600 and a GTX 1060 on it while the X370 also has a 1600 was tested to conform that it is working when purchased but not sure of it's history

Edited by Game_Hustla
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My first Ryzen build was also with a Gigabyte x470 Aorus Gaming 5 and belive me that mobo is a nightmare. When I finished building my PC everything was working perfectly. After exactly one week it stopped POSTing. If I remember correctly the CPU diagnose led was red and the DRAM led was flashing green. I returned all the parts (mobo, cpu, ram) and after two weeks the online store reached out to me that they concluded the CPU was broken and they replaced it. After that I thought it was all over so I built my PC again, but EXACTLY after a week the same thing happened. I returned everything and decided I would buy at a different store. After a while I bought the same RAM and CPU but with an Asus B450-F ROG Strix. Haven't had any issues since then. You should RMA your CPU and mobo. That board is just cursed.

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Posted · Original PosterOP
On 1/10/2019 at 3:36 PM, KacperNoe said:

My first Ryzen build was also with a Gigabyte x470 Aorus Gaming 5 and belive me that mobo is a nightmare. When I finished building my PC everything was working perfectly. After exactly one week it stopped POSTing. If I remember correctly the CPU diagnose led was red and the DRAM led was flashing green. I returned all the parts (mobo, cpu, ram) and after two weeks the online store reached out to me that they concluded the CPU was broken and they replaced it. After that I thought it was all over so I built my PC again, but EXACTLY after a week the same thing happened. I returned everything and decided I would buy at a different store. After a while I bought the same RAM and CPU but with an Asus B450-F ROG Strix. Haven't had any issues since then. You should RMA your CPU and mobo. That board is just cursed.

What was your CPU model? also did you bought from amazon or another retailer?

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On 1/11/2019 at 8:16 PM, Game_Hustla said:

What was your CPU model? also did you bought from amazon or another retailer?

I had a Ryzen 5 2600x. It was a polish retailer but I heard the problem was worldwide (although I've seen alot of reviewers using that board without any problems). If the motherboard doesn't POST you should be able to return it (with the CPU).

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Posted · Original PosterOP
33 minutes ago, KacperNoe said:

I had a Ryzen 5 2600x. It was a polish retailer but I heard the problem was worldwide (although I've seen alot of reviewers using that board without any problems). If the motherboard doesn't POST you should be able to return it (with the CPU).

Well crap I had a glimpse of hope that my MoBo might have problems with 8c/16t or higher CPUs also another oopsie that is I bought my mobo from amazon on May 2018 and I "live" in KSA

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