• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.
  • The forums have been upgraded with support for dark mode. By default it will follow the setting on your system/browser. You may override it by scrolling to the end of the page and clicking the gears icon.

Odd results in HardInfo and CPU-Z benchmark when disableing PBO limit

Status
Not open for further replies.
Joined
Jan 4, 2013
Messages
1,208 (0.27/day)
Location
Denmark
System Name R9 5950x/Skylake 6400
Processor R9 5950x/i5 6400
Motherboard Gigabyte Aorus Master X570/Asus Z170 Pro Gaming
Cooling Arctic Liquid Freezer II 360/Stock
Memory 4x8GB Patriot PVS416G4440 CL14/G.S Ripjaws 32 GB F4-3200C16D-32GV
Video Card(s) 7900XTX/6900XT
Storage RIP Seagate 530 4TB (died after 7 months), WD SN850 2TB, Aorus 2TB, Corsair MP600 1TB / 960 Evo 1TB
Display(s) 3x LG 27gl850 1440p
Case Custom builds
Audio Device(s) -
Power Supply Silverstone 1000watt modular Gold/1000Watt Antec
Software Win11pro/win10pro / Win10 Home / win7 / wista 64 bit and XPpro
Been tinkering with a baseline for some final OC when winter sets in here - and found some recommendation for disableing PBO limit in bios - doing that gave the same boost behavior shown in Hardware info - but at 1000 points lower multicore result in CPU-z

Result with PBO limit set to 200 boost
HWinfoCurve.jpg

Best core is core 0 boost to 5200MHz



CurveTest.jpg

Multicore test at 12704 not the best score with this cpu as my avatar shows


Now disableing PBO limiter in bios and I get these results
1701003671805.png

Best core is still core 0 at 5200MHz

1701003704162.png

But multicore score is about 1000 points less? Is this alone thes limiter or is there something else?
 
If you want to use all of the power the 5950 has to offer, you have to run very high power limits. I am not sure what those limits would be because I do not have one. But I run my 5900X at 260/170/200. Linpack Xtreme runs at 4550 for ~523 GFlops, and I get boost up to 5150 on a few cores, the others hang out closer to 5Ghz.
 
Just use your other thread.

 
Status
Not open for further replies.
Back
Top