Originally Posted by Baindramage
I'm raising my HTT to hit 3.9, and my ram is currently at 1355, stock frequency is 1333 for it, so I'm keeping it on the stock 1.5v. I did set my CPU/NB manually, it's at 2531 right now, with a voltage of 1.35, and my HTlink is the same speed. so, should I *lower* my cpu/nb before I raise my htt? I really only kept those settings on auto because it looked like ASUS was handling those alright with a 3.8 GHz OC. Also, I've tried running lower multis like 14, but my ram clocks too high and I don't want to screw with finicky DRAM voltages as I want to keep those as close to stock as possible, but on the divider, my only lower option is 1088 when on 3.8 with a multi of 14. And also, I can boot fine, it's just when I run PRIME95 with an OC of 3.9 GHz I get an error on core 5. but, 3.8 GHz is PERFECTLY stable, as I tested it in PRIME for over 14 hours loading small ffts.
If ram voltage is 1.5v is that the manf rated voltage? If it is make sure it's manually set in bios along with the timing values.
What is your vcore for both attempts (3.8 + 3.9)
Try raising the CPU/NB Freq up to 2600-2800MHz and adjust the CPU/NB Voltage accordingly. At 3.9 it may take that much CPU/NB Freq to make stable.
If only one worker is failing it most is due to not enough CPU/NB Voltage, HT Voltage or maybe even Ram voltage. Max for CPU/NB is 1.45v maybe you need to raise it more in small increments. HT voltage may need to be around 1.3-1.4v that's something you may need to address.
Lower the HT Link Speed to 2000MHz or as close as possible.
Have you tried raising the cpu multiplier instead of raising the HTT to get to 3.9? (245 x 16=3920)
And if you haven't seen this thread, you may find some useful info in this http://www.overclock.net/amd-general...ing-guide.html