Is there a drop-in pen modification available for the Gigabyte P35-DS3 rev 2.1 motherboard?
Is there a drop-in pen modification available for the Gigabyte P35-DS3 rev 2.1 motherboard?
Hey everyone, I’m planning to install the VDroop mod on this board and want a lower VDroop setting since it’s really slowing down my overclocking efforts. Can someone point me in the right direction for the exact resistor values or a detailed guide? I’d appreciate seeing close-up images or specific instructions if possible. You’ve got this!
Maybe you can check this thread; GIGABYTE GA-P35-DS3L VOLT MOD - PENCIL MOD - HARD MOD FOUND!
This mod has been waiting a long time, and many people are searching for it. I invest a lot of time trying different approaches and reading about it.
www.overclockers.com
In my opinion, it's best to leave it as is, because chances of finding another working board for your platform are very low.
I don’t like vDroop mods or LLC because of their behavior. Intel introduced a vDroop amount initially since very low voltage causes significant voltage changes when the processor switches on and off, especially around 100A through tiny traces. This leads to either droop or overshoot when power is reduced. To achieve less actual droop under load, you need to add more traces and pins to the chip. On the other hand, a "vDroop mod" mimics higher vCore voltage by raising voltages everywhere, which only increases the overshoot beyond the original setting when the load is cut off. In short, it makes your vCore specification seem lower so you feel more confident using less voltage.
Luckily, your 45nm Core 2 Quad has plenty of vCore headroom. Its maximum safe vCore voltage is about 1.45V, so raising it a bit is safe. I’ve tested running it at 1.475V for over 20 years without issues, though that demands significant cooling. Replacing the chip would be inexpensive, even pushing it to 1.5V.
P35 performs worse than P45 when it comes to high FSB speeds on quad processors, so you’ll likely need to boost VTT and MCH voltages—though neither should exceed 1.4V. With a default VTT of 1.1V on P35, you can safely add up to 0.3V. The standard MCH is 1.15V, but it works best around 1.35V (+0.2V). These adjustments increase stress on the chipset, which is why many recommend higher-multiplier CPUs instead. This means you won’t need to make these changes to hit similar clock speeds at a more practical FSB.
If you still choose to proceed, the spec sheet indicates you should connect the 4th pin from the bottom left to a resistor that feeds back to VDIFF on pin 15. Ideally, use a trimpot across the resistor rather than a simple wire—just a way to pretend you’re using less voltage.
Thanks for the assistance and the helpful remark. I discovered the modification from the Wayback Machine for my old board, so I plan to try it out and check if it improves things. I’ll also purchase a Xeon E5450 since I already have a modified BIOS and other components that are also modified.
I'm going to go insane. I've been trying to find the resistor for a long time and still can't decide which one. I even checked once it was 1600 Ohms, then it went back to 1900. Anyone help? I'll show an image. https://imgur.com/a/XH5YorU
Who's there?
Edit: I messed up the SMDs and resistors, handled the BSODs. I fixed everything with water since I didn't have iso alc (I'm a total fool), and now it's working again—win-win?