View Full Version : should i turn up the 5 volt rail or the 12v rail in the psu ?
amdfreak04
06-17-05, 04:11 PM
I currently have my 1 stick of 256mb ddr ocz el @ 251fsb 3-4-4-11... I notice that at idle my volt modded ram stays at 3.30volts ... under load it drops as low as 3.23.... If you turned up the 5volt rail or the 12 volt rail in my power supply could i get the ram to idle at 3.35 maybe and loaded at 3.30 volts ?...Which rail would i turn up in the psu 5v rail or the 12v? How would i do this without ruining anything
thanks in advance
L337 M33P
06-18-05, 10:36 AM
You will have to look at any pots close to the voltage regulator. Most PSUs have one independent control for the 3.3V line and one that does both the 12V and 5V lines together. It will be trial and error finding out which one does which and the PSU has to be on and opened while doing so. Use an electrician's insulated screwdriver and be wary of the heatsinks. Have at least one voltmeter connected to 12v/3.3V whilst turning them and only do it infinitesimally. If you do not know the precautions when dealing with live equipment then I suggest you don't do it.
The reason you are not getting anything more out of VDD for the ram is because it is as high as it can go. The NF7-S uses 3.3V to generate the 2.5V for RAM voltage so an increase in 3.3 is needed. This would cause other devices such as PCI to receive higher volts so be careful. If no greater overclock is attained from an 0.1-0.2V increase then leave it be.
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