Sandbo

引用:

原帖由 qcmadness 於 2017-3-11 23:35 發表

There are other claims that Windows 10 misreports the cache size for Ryzen CPUs

https://www.guru3d.com/news-stor ... back-amd-ryzen.html

qcmadness

http://www.xtremesystems.org/for ... eople-to-buy-Nvidia

第2日就走去接UAE d AMD stock

dom

引用:

原帖由 qcmadness 於 12-3-2017 13:25 發表
http://www.xtremesystems.org/for ... eople-to-buy-Nvidia

第2日就走去接UAE d AMD stock

LOL

Puff

Things do seem kinda messy. The only thing which has correct readings is Ryzen Master. Even Windows reports a different operating frequency, and common tools like CoreTemp do not work at all. SpeedFan reports my fan spinning at 10630 RPM.



Burning 3.7 GHz @ 1.2V (stock: 1.1875V) with Prime95. The temp so far lies within 55-58C. I use Noctua NH-U12S, FYI.

Edit: 1.2V crashed after 5-10 minutes. Trying 1.225V now.


Edit: 3.7Ghz @1.215V is pretty stable. 3.8Ghz @1.25V seem to be stable, but somehow Firefox crashed.　3.9 GHz @1.275V crashed CB15 immediately. Gonna stick with 3.7.


[ 本帖最後由 Puff 於 2017-3-12 22:58 編輯 ]

Sandbo

引用:

原帖由 Puff 於 2017-3-12 17:16 發表
Things do seem kinda messy. The only thing which has correct readings is Ryzen Master. Even Windows reports a different operating frequency, and common tools like CoreTemp do not work at all. SpeedFan ...

Not really sure about the voltage, but from what I heard Ryzen tends to use a lot higher than the numbers you gave(PCPerspective applied 1.4V, and it went up to 7X degree C), however you may need a better cooler and mainboard to go any further.

But 3.7 GHz stable with only 55 C and just Noctua U12S is pretty good.
(My 6700k only got 4.4 GHz with 1.32 V(typical number for Skylake, even with NH-C14 and industrial 140mm 3000rpm, it can reach 82C with Prime95, though under normal load it's below 70C)

[ 本帖最後由 Sandbo 於 2017-3-12 23:35 編輯 ]

Puff

引用:

原帖由 Sandbo 於 2017-3-12 23:33 發表

Not really sure about the voltage, but from what I heard Ryzen tends to use a lot higher than the numbers you gave(PCPerspective applied 1.4V, and it went up to 7X degree C), however you may need a b ...

The F/vt curve is significantly steeper beyond ~3.7 GHz as experienced by many.

PCPer targeted 4.0 GHz for the 1700. 3.9-4.1 GHz requiring at least 1.35V is kinda expected (mentioned by AMD too), especially on 1700 which is presumably binned with parts performing worse at higher frequencies.

So far I didn't see any OC reviews on undervolting, except one who clocked 1700 at the same clock as mine (3.7). But I forgot which reviewer it is from, and the voltage. Sigh.

Edit: Here is a thread from HardOCP. https://hardforum.com/threads/ry ... ng-tidbits.1926296/

[ 本帖最後由 Puff 於 2017-3-13 00:07 編輯 ]

Sandbo

引用:

原帖由 Puff 於 2017-3-12 23:43 發表

The F/vt curve is significantly steeper beyond ~3.7 GHz as experienced by many.

PCPer targeted 4.0 GHz for the 1700. 3.9-4.1 GHz requiring at least 1.35V is kinda expected (mentioned by AMD too), es ...

Looks like 3.7 GHz is the sweet spot for 1700, at least for this batch.
With almost the same performance for $200 USD cheaper than 1800X, it kind of renders 1700X/1800X meaningless to get given how low cost and easy the overclocking can be achieved.

Puff

引用:

原帖由 Sandbo 於 2017-3-13 00:27 發表

Looks like 3.7 GHz is the sweet spot for 1700, at least for this batch.
With almost the same performance for $200 USD cheaper than 1800X, it kind of renders 1700X/1800X meaningless to get given how l ...

Yep, kinda glad I didn't get 1700X, esp. after verifying that the power saving states still being functional (7 cores idling at 1.x Ghz) when I am just redditing.


[ 本帖最後由 Puff 於 2017-3-13 01:37 編輯 ]

BlackBird

引用:

原帖由 Puff 於 2017-3-12 23:43 發表

The F/vt curve is significantly steeper beyond ~3.7 GHz as experienced by many.

PCPer targeted 4.0 GHz for the 1700. 3.9-4.1 GHz requiring at least 1.35V is kinda expected (mentioned by AMD too), es ...

同Deneb差不多

qcmadness

引用:

原帖由 BlackBird 於 2017-3-13 16:49 發表

同Deneb差不多

Deneb低頻好多

dom

3.7GHz for 8C16T pretty good

Puff

If you gonna build soon and OC, be aware of the fact that not all BIOS currently offers options to edit P-states. For example, ASUS C6H offers it, but the ASUS B350 board offer just a constant FID, DID and Vcore. IOW the core would not drop to lower clocks when idling.

OC done in Ryzen Master does not suffer from the issue, but it doesn't seem to persist after sleep or reboot.

[ 本帖最後由 Puff 於 2017-3-14 08:33 編輯 ]

BlackBird

引用:

原帖由 qcmadness 於 2017-3-13 19:17 發表

Deneb低頻好多

Frequency scaling 都差不多係3.7後就要瘋狂上電4G就玩完

qcmadness

引用:

原帖由 BlackBird 於 2017-3-14 09:22 發表

Frequency scaling 都差不多係3.7後就要瘋狂上電4G就玩完

3.7要好後期的Deneb

Puff

引用:

原帖由 qcmadness 於 2017-3-14 09:26 發表

3.7要好後期的Deneb

P2 980 嘛
我記得喺 Istanbul 出先到佢.