Soldato
- Joined
- 29 Mar 2007
- Posts
- 3,826
- Location
- Essex
You mean the BIOS F4?
Same, revision 4/F4.
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You mean the BIOS F4?
Well i've had a bash at raising the voltage and it does nothing.
Just knocked it up by 0.1 (under overvoltage DDR2/DDR3) and it still showed as 1.8 in CPU-Z.
The memory needs to be at 2.1v and I wasn't under the impression that CPU-Z displayed the memory voltage. It displays the rated voltage for a given speed but doesn't show the actual memory voltage.
In the BIOS, set the memory voltage on the MIT page to +0.3v that will give the memory 2.1v. Speedfan 'can' show the memory voltage.
When you set the FSB to 400 are you remembering to adjust your FSB:Memory ratio?
I'm not touching it, i think its auto.
That'll be why it's crashing then, set it the fsb:mem ratio to 2x if you want to run 400 fsb.
266x9 (stock), 266 (fsb) x 3 (mem multi) = 800ddr2
400x6 (stock speeds still) but 400x3 = 1200ddr2! Way out of spec!
Drop the mem multi down to 2x if you are running 400 fsb.
CPU Host Frequencey (mhz) ???
System Memory Multiplier (SPD) ???
Memory Frequency (Mhz) ???
(2.0x System Memory Multiplier and 266 CPU Host Frequency gives PC5300 memory speed)
(3.0x System Memory Multiplier and 266 CPU Host Frequency gives PC6400 memory speed)
System Voltage Control [Manual]
DDR2/DDR3 OverVoltage Control [+.3V] (+.3v gives 2.1v memory voltage)
Memeory timings also need checking.
Before entering any page in the BIOS but while still on the initial BIOS screen, press Control+F1 to enable hidden memory timing settings. Then enter the MIT page to see them. Set accordingly.
This is great info mate, what about if i want the FSB as 400? Would the SPD by set at 2x?
Yes, but the CPU multiplier (x9) would give a CPU speed of 3600MHZ (9x 400) which may be too high an over clock for your CPU/CPU voltage configuration. Consider using an 8x multipier for the CPU (8x 400 = 3200MHz).