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[Official] RYZEN 7 1800X | 1700X |1700 Owners Club & 4GHz+ Club - Page 840

post #8391 of 11482
@mus1mus Ahh okay. I read the manual.html and it said something about using the same number of instances as cores...not threads. Might re-do it later.
post #8392 of 11482
I just helped my friend finish his watercooling build today (1800x, Fatil1ty board, 1x 360 rad, 1x 240 rad) and I'm not sure what's up with his temperatures. I wasn't there to help him mount the block, I only helped with the cables and compression fittings.

Block link below

https://www.amazon.com/Alphacool-Eisblock-XPX-CPU-Silver/dp/B01M28UQJ4/ref=sr_1_6?ie=UTF8&qid=1491785825&sr=8-6&keywords=am4+waterblock

All stock, 15-20 minutes of Prime 95, 71c Tctl temp and 41c Tdie temp.

Meanwhile I'm at 54c Tctl and 39c Tdie with an 1800x, Noctua NH-D15s and Crosshair board
post #8393 of 11482
Quote:
Originally Posted by nrpeyton View Post

Right I've looked further into this:

http://www.crucial.com/usa/en/memory-performance-speed-latency



CAS * 2000 / Speed(in MHz)

If you take the last entry for example; the result is as follows:
18 x 2000 / 2666 = 13.50337


Or from the DDR4 2400 entry:
17 x 2000 / 2400 = 14.166666

So the equation is actually a calculation of "true latency", not true speed.

I'll be able to use the equation to determine if my RAM upgrade is really an upgrade.

For example my current DDR3 2133 C12 kit (as I now learned) has a "true latency of": 11.25

If I upgraded to DDR4 3200 C16, my new true latency would be: 10. (16 x 2000 / 3200 = 10)

(So in reality I'm actually getting slightly lower "true" latency despite the higher timings AND the hugely increased speed).
It all makes perfect sense now ;-)

Again, that doesn't relate to Ryzen yet. And even with Intel.

What that really says is the THEORITICAL RAM Bandwidth and Latency in each speed. Inside Windows, you can no longer apply that as apps are not reading those correctly.

Consider Cache Speed that affects the way apps read Bandwidth and Latency. They produce better numbers simply because the app measured the system running the instructions faster not necessarily due to RAM being run faster.
post #8394 of 11482
Quote:
Originally Posted by nrpeyton View Post

Right I've looked further into this:

http://www.crucial.com/usa/en/memory-performance-speed-latency



CAS * 2000 / Speed(in MHz)

If you take the last entry for example; the result is as follows:
18 x 2000 / 2666 = 13.50337


Or from the DDR4 2400 entry:
17 x 2000 / 2400 = 14.166666

So the equation is actually a calculation of "true latency", not true speed.

I'll be able to use the equation to determine if my RAM upgrade is really an upgrade.

For example my current DDR3 2133 C12 kit (as I now learned) has a "true latency of": 11.25

If I upgraded to DDR4 3200 C16, my new true latency would be: 10. (16 x 2000 / 3200 = 10)

(So in reality I'm actually getting slightly lower "true" latency despite the higher timings AND the hugely increased speed).
It all makes perfect sense now ;-)

Definitely not true for Ryzen. Although you are increasing your latency, it appears the increase (in mhz of ram) to the infinity fabric offsets the higher latency.
Ryzen - Elmor
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Ryzen 1700 @ 3.8Ghz ASUS ROG CROSSHAIR VI HERO GeForce GTX 1070 32GB DDR4-3466 16-15-15-35 
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Samsung 960 EVO 1TB Samsung 830 SSD 256GB Hitachi 2TB HGST 4TB  
CoolingOSMonitorPower
Noctua NH-D15S Windows 10 Pro Acer Predator XB271HU SeaSonic PRIME Titanium 750W 
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Fractal Design Define R5 
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Ryzen - Elmor
(13 items)
 
  
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AMD Ryzen 1700 @ 3.8Ghz ASUS ROG CROSSHAIR VI HERO GeForce GTX 1070 32GB DDR4-3466 16-15-15-35 
Hard DriveHard DriveHard DriveHard Drive
Samsung 960 EVO 1TB Samsung 830 SSD 256GB Hitachi 2TB HGST 4TB  
CoolingOSMonitorPower
Noctua NH-D15S Windows 10 Pro Acer Predator XB271HU SeaSonic PRIME Titanium 750W 
Case
Fractal Design Define R5 
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post #8395 of 11482
1 Hour Prime 95 29.1 Blend set to Custom with 95% RAM done without a reboot from HCI Memtest 900% Coverage.

I say, HCI Memtest is doing great on this platform. thumb.gif

post #8396 of 11482
24+ hours prime done........

Hope your happy.

No its not 4 gig because quite simply its NOT STABLE @ 4 gig

post #8397 of 11482
Quote:
Originally Posted by finalheaven View Post

Definitely not true for Ryzen. Although you are increasing your latency, it appears the increase (in mhz of ram) to the infinity fabric offsets the higher latency.


Has anyone looked at the worst of the hynix kits with Taiphoon or whatever else can read subtimings? That low priced kit that gives people a headache for example.
post #8398 of 11482
ok mus1mus I can see now.

drop to 2666 or 2400 divider run ref clock up tighten them timings bud smile.gif
post #8399 of 11482
Quote:
Originally Posted by finalheaven View Post

Definitely not true for Ryzen. Although you are increasing your latency, it appears the increase (in mhz of ram) to the infinity fabric offsets the higher latency.

What would you recommend, then?

I've almost got everything in my *basket* picked out, but my RAM decision is really holding me back.
Nick-PC
(9 items)
 
  
CPUMotherboardGraphicsRAM
I7 7700K ASUS Z270 ROG MAXIMUS IX APEX NVIDIA GeForce GTX 1080Ti G.SKILL Trident Z 3600 C16 
CoolingOSMonitorPower
EK KIT P360 (Custom Water Loop) Microsoft Windows 10 Home, 64 bit ASUS PG278Q 850 Bronze 'be Quiet POWER ZONE' 
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Corsair Obsidian 750d Airflow 
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Nick-PC
(9 items)
 
  
CPUMotherboardGraphicsRAM
I7 7700K ASUS Z270 ROG MAXIMUS IX APEX NVIDIA GeForce GTX 1080Ti G.SKILL Trident Z 3600 C16 
CoolingOSMonitorPower
EK KIT P360 (Custom Water Loop) Microsoft Windows 10 Home, 64 bit ASUS PG278Q 850 Bronze 'be Quiet POWER ZONE' 
Case
Corsair Obsidian 750d Airflow 
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post #8400 of 11482
Quote:
Originally Posted by chew* View Post

ok mus1mus I can see now.

drop to 2666 or 2400 divider run ref clock up tighten them timings bud smile.gif

biggrin.gif

These micron chips hate lower TRCD. thumb.gif But will try.


@nrpeyton

Just grab some B-die TridentZ. You can choose 3600 or even 4266 kit if you want. thumb.gif
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