- Joined
- Sep 28, 2011
- Messages
- 95
- Motherboard
- Z87X-UD5H
- CPU
- i7 4790K
- Graphics
- GTX 960 / GTX 1080
- Mac
- Mobile Phone
Hi,
Yeah I had turn the v-core down!! This f9 BIOS was the 2nd for the Devils Canyon for the board and was giving it 1.37 by default with temps to match!!
I believe there is a newer beta BIOS 10c that corrects the issue, but for now it's a beta so I'll stay away....
The fix you and I worked out is detailed here..I'm getting 4.4 at 1.97vcore for now...
http://www.tonymacx86.com/mavericks...-4790k-z97n-working-i7-4790-a.html#post835330
The problem was if you had the cpu at 4.0 with boost to 4.4 (the default BIOS setting) it would hang booting with a keystore error.
As I said, I had to BIOS set turbo-boost to Enabled not Auto and set Cores 3 and 4 to 44 and then boot to 10.9.4, build the ssdt to manage multipliers using the script, made your suggested bootplist changes and appear to have EIST. It's all good now, if a workaround/hack/bodge/whatever!! So I get 4.4 under heavy workload/benching with lower frequencies for minor work. HW is miles off, Intel Power Gadget, as you said, is much more accurate.
View attachment 97457
Thanks again...
Sorry if I'm writing to an old post, but I'm searching for days and can't find anything. I had the same board and 4790k and I had problems with temps when i have vcore to auto. 100 C!!!
When i set it to 1.2V the temps drop down.
What i have to do to lock the cpu at 4Ghz? And vcore of course.
No need for overclocking. Just need to have good temps at full loads.
Is it safe to update bios to 10c?
Thnx in advanced
SOLVED!!
I updated bios to 10c on the second bios with SingleBios mode. All temps are good with full load