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[Official] RYZEN 7 1800X | 1700X |1700 Owners Club & 4GHz+ Club - Page 902

post #9011 of 11507
you forgot the PCB traces.. they're extremely tiny while making them bigger could generate higher EMI which could result instability
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post #9012 of 11507
Quote:
Originally Posted by sakae48 View Post

4pin is able to deliver 144W compared to 8pin which could deliver twice of total power. it's fine for ryzen cpus to just use 4 pin actually. but, spreading the load to 8 or even more pins is better. you'll get lower wire and socket resistance. you'll not need it for daily use but might be good to plug everything if your PSU have another 4pin CPU plug biggrin.gif

Actually its not fine for ryzen to use 4pin alone, at factory speeds sure and even oced, but the max for a 4pin eps/atx is actually 192w but it wasn't designed that way. The 8pin can provide 336w and not 500+w lol.

24pin can only provide 373w as well, not sure how you guys have numbers really off lol.
    
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post #9013 of 11507
Quote:
Originally Posted by bluej511 View Post

Actually its not fine for ryzen to use 4pin alone, at factory speeds sure and even oced, but the max for a 4pin eps/atx is actually 192w but it wasn't designed that way. The 8pin can provide 336w and not 500+w lol.

24pin can only provide 373w as well, not sure how you guys have numbers really off lol.


24-pin using Std Terminals:
373 watts

24-pin using HCS Terminals:
559 watts

---

4-pin using Std. Terminals:
192 watts

4-pin using HCS Terminals:
264 watts



Prior to March 2005, all the power supply form factor specifications called for using standard terminals, but all the ratings from March 2005 to the present have changed to require HCS terminals instead.
Edited by nrpeyton - 4/16/17 at 5:54am
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post #9014 of 11507
Quote:
Originally Posted by bluej511 View Post

Actually its not fine for ryzen to use 4pin alone, at factory speeds sure and even oced, but the max for a 4pin eps/atx is actually 192w but it wasn't designed that way. The 8pin can provide 336w and not 500+w lol.

24pin can only provide 373w as well, not sure how you guys have numbers really off lol.

i dont provide those numbers lol.. i stated 144W with 4pin and twice for the 8pin biggrin.gif
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post #9015 of 11507
lol,

here's where I got it from:
http://www.tomshardware.co.uk/power-supply-specifications-atx-reference,review-32338-9.html

It's quite detailed, if you've got the patience lol.

What I would like to find out how to do... is how guys test power supplies using volt meters?

I have a multimeter but don't know what to do with it lol.

(Saying that, I can use it on my GPU), as it's got pins with readouts you can touch with the multi-meter for physical voltage readings of core, memory, etc.
(Quite interesting actually; you'd be surprised how well that bad boy sticks to its voltage; i.e. very little variation between min/max under load). The actual voltages are also quite a bit higher than reported in Windows (but no worries because its still consistent right across the entire range).

Really want to learn how to get a physical reading of whats going into my chip / board (which doesn't have readout pins).

Its a little feature only EVGA do on their Classy gpu's.

Unfortunately I think the 1080 Classy was the last ever Classy. There's nothing in EVGA's lineup suggesting a classy this round with 1080 TI. (Anyway sorry for going off-topic there, I know this isn't a GPU thread).








Anyone put their Ryzen under chilled water yet?
Edited by nrpeyton - 4/16/17 at 6:18am
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post #9016 of 11507
Quote:
Originally Posted by Aussiejuggalo View Post

So changed my vcore back to auto from 1.35v manual and... it seems stable. Hardware Monitor says max vcore is 1.32v and min 1.28v.

Very strange and slightly confusing headscratch.gif.

That is weird. I always set mine to 1.35v and forget it, regardless of clockspeed. Different board though.

Quote:
Originally Posted by Nickyvida View Post

Still unable to hit 2933 for my ram despite 3 bios revisions for the carbon. This is frustrating. Unable to post if i enter 2933 on my bios which my ram is rated for. AMP only works up to 2667.

Do you set RAM speed and timings at the same time? Also, have you tried Ryzen Master for setting your memory speeds/timings?
post #9017 of 11507
Quote:
Originally Posted by nrpeyton View Post

lol,

here's where I got it from:
http://www.tomshardware.co.uk/power-supply-specifications-atx-reference,review-32338-9.html

It's quite detailed, if you've got the patience lol.

What I would like to find out how to do... is how guys test power supplies using volt meters?

I have a multimeter but don't know what to do with it lol.

(Saying that, I can use it on my GPU), as it's got pins with readouts you can touch with the multi-meter for physical voltage readings of core, memory, etc.
(Quite interesting actually; you'd be surprised how well that bad boy sticks to its voltage; i.e. very little variation between min/max under load). The actual voltages are also quite a bit higher than reported in Windows (but no worries because its still consistent right across the entire range).

Really want to learn how to get a physical reading of whats going into my chip / board (which doesn't have readout pins).

Its a little feature only EVGA do on their Classy gpu's.

Unfortunately I think the 1080 Classy was the last ever Classy. There's nothing in EVGA's lineup suggesting a classy this round with 1080 TI. (Anyway sorry for going off-topic there, I know this isn't a GPU thread).








Anyone put their Ryzen under chilled water yet?

You poke the corresponding wires with your dmm, you can even do it into the atx 24pin provided you get a good position just probe it into the back of the receptacle and you SHOULD get a reading (provided theres enough of a gap to touch the actual pin).

Its super easy to read voltage with a dmm and it's pretty much 100% safe unless you touch 2 pins and then the dmm leads all at the same time haha. Its the same for eps/pcie and wtv other connector you wanna read.

You can also do it off the pc and short the green wire and ground with a paper clip or something thicker then turn it on and read the voltages with your dmm. Only thing you can't do is read amperage or load put on or wtv else can cause a psu to fail. You can even test resistance if you have modular cables.
    
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post #9018 of 11507
i would have thought that it would ask for an extra to independent voltage for the ram for "some" reasons?
Edited by MrPerforations - 4/16/17 at 7:44am
    
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post #9019 of 11507
Quote:
Originally Posted by nrpeyton View Post

That is a tremendous amount of power capability.

The main 24-pin connector can supply 560 watts alone.

The 8-pin auxiliary can supply 528 watts.

Thats 1088 watts

A further 4-pin auxiliary connector would supply an extra 264 watts.

In total that equals 1352 watts!


GPU's only pull 75 watts from the mobo, two in SLI would draw 150w

Thats leaving 1202 watts just for the CPU, memory, drives & pumps/fans etc.

I can't even begin to think of a scenario where a motherboard needs more than 1088 watts (24-pin & 8-pin).

What could cause a 1352 watt draw (requiring an additional 4-pin) when there is already a 24-pin & 8-pin?

I am intrigued, lol.

Wrong.

If you take your time to check your PSU spec, you will see which rails the majority of the Power Output go.

Example
http://www.evga.com/products/Specs/PSU.aspx?pn=c72f40f5-f7c2-4485-84d6-9c2bc900b8eb

Rails exclusive of +12V - max of 120W.

And check the pin assignment on the 24-pin to see if that is capable of 560W.

https://en.m.wikipedia.org/wiki/ATX

In a 24-pin motherboard pinout, there are only FOUR +12V rails. Compare that to a 6-pin PCIe cable that is rated to 75W - 150W and you get the idea.

Do not assume maximum theoritical Wattage each type of socket is capable of.

God knows what kind of connector they put into the 8-pin and 4-pin EPS sockets. If you are too keen to look, check out the difference between the actual pins on the 8-pin EPS your mobo has and compare those pins to what your GPU has on the PCIe Power.

Hint -
8 Pin EPS uses thin folded pins on the motherboard side.
8-pin PCIe uses solid pins.
Modular PSU sockets have solid pins.

Thin folded pins are easily prone to loose connections that result to incidents like burnt EPS sockets.

Again, if your PSU does'nt come with an Extra 4+4 pin EPS, it's just crap. But you can always convert one of those PCIe cables to an EPS if you want to. Simple job. Not rocket science.
post #9020 of 11507
I'm sure this has been asked and answered many times, but I need clarification. What exactly is the 20 degree temp offset apply to? All sensors or just the CPU? What about the PCH?

So assuming CPU only, I just need to subtract 20 from the readings I am getting, around 50 - 55 idle temp?

Thanks everyone!
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