12-25-2017 06:09 PM - last edited on 03-06-2024 10:03 PM by ROGBot
12-26-2017 05:05 AM
12-26-2017 06:44 PM
Menthol wrote:
Nicklas0912,
I have only had my 7980 for a couple weeks so I don't know what to expect yet but passing RB15 at 4750 seems pretty damn good to me, anything above 4600mhz gets difficult for me
Temps and current seems to skyrocket very fast on these big chips I don't think software temp reading report 100% correctly during these fast bursts during benching
looking on HWBOT I see one person pass RB15 at 4860 on custom water but the database is very limited on these chips and CPU's capabilities differ by a huge margin
What is your Cache clocked to as that seems to increase needed current and voltage needed and temps
12-26-2017 08:13 PM
12-27-2017 08:01 AM
JustinThyme wrote:
If you are hitting 4.7 stable you are in the top 10% or better for that chip. Cinebench isnt exactly stable.
Run RealBench and see what you get. If you can pass several runs of that then you are well on your way.
Menthol wrote:
Expect a lower overclock on the 7980XE, I am using a water chiller on my setup to help keep temps under control
The best binned 7980XE from Silicon Lottery is 4.4 GHZ and delidded to reduce temps, they sell them for $2700.00
12-27-2017 08:14 AM
Nicklas0912 wrote:
Hmmm, I see many like Jayce 2 cent that can do 4.6/4.7Ghz on a single or Duo rad? mabye he was just lucky 😄 We see when it comes.
12-27-2017 12:09 PM
JustinThyme wrote:
20 rads wont make a difference if you cant get the heat off the core. Are you monitoring your liquid temp? A single 480 rad is more than capable of disipating the heat from the liquid but you must first get the heat off the IHS and into the liquid. Thats where most of the problem lies with these chips. Im running a 7900X and with dual 480 rads and 20 fans total, can easily keep my liquid temps near ambient and that helps but is not the limiting factor. My machine runs nearly silent with minimal loads but the temps on the core jump instantly when a load is applied and the only thing that changes is my liquid temp will start to rise slowly and the fans ramp up to keep it under 30C.
12-27-2017 04:15 AM
12-27-2017 12:52 PM
12-27-2017 01:50 PM