Originally posted by: Diasper
Quick question is 300HTT the max or can you go further? Are they consistently getting to 300HTT (as opposed to the inconsistency of the Biostar)
Also what are all the RAM ratio options on the modded bios
These are my first A64 boards, (from socket A) so not yet 100% familar with A64 terms.
FSB is limited to max 300MHz in Bios (200MHz-300MHz range).
HTT settings are 1GHz, 800MHz, 600MHz (what I use), 400MHz, 200MHz. (5x,4x,3x,2x,1x).
With my limited knowledge, I think 600MHz HTT equals 3x, so at 300MHz FSB that would be 900MHz.
The HTT numbers are based on a stock FSB of 200MHz, with 200x3=600 and 300x3=900MHz HTT.
The boards I have were all Newegg Jetway sealed Refurbs ($55 delivered), so it is possible hardware changes or mods to the board were performed by Jetway that original shipped versions might not have. Doubtful, but possible.
Have 6 of these Jetways, and all 6 run Opteron 144's (vcore at 1.50v) at 300MHz x 9, so yes, I would say 100% success indicates consistant results for the boards. However, an Opteron 146 I have only did 300MHz with higher vcore (vcore 1.55v). So the boards WILL do 300Mhz, but your CPU might not. Most of the Opteron 144's using stock HSF and CPU runs in the low 40c's. The 146 at 3GHz temp was 51c. Now running the Opteron 146 at 281x10, or 2810, which keeps CPU temps down near 40C using stock HSF with a vcore of 1.50v. That 2810MHz is still faster than the 2700MHz my 144's run at, so not too unhappy.
With system running 300MHz right now, memory settings in Bios give me these options:
Auto, 200MHz, 233MHz (What I am running = 466MHz DDR), 266MHz, and 300MHz.
If I set FSB at stock 200MHz, memory settings in Bios are as follows:
Auto, 100MHz, 133MHz, 166MHz, 200MHz.
With 266MHz FSB memory shows settings of: auto, 166, 200, 233, 266MHz.
Other Bios settings that may be of importance are:
vcore up to 1.55v in increments of .025v
Vram 2.55, 2.65 (default), 2.75, 2.85v. (using 2.75v)
Chipset 1.8v (default), 1.9v (using 1.8v)
Onboard video GFX clock 200, 250, 266, 300, 333, 350MHz.
(note board has 32meg onboard dedicated video memory, plus whatever is shared, and both can be disabled or just one enabled, or both enabled).