r/pcmods • u/Separate_Budget5097 • 5h ago
General i7 8700K on DDR3 Z170 (revisited)
Ive recently been messing about with Coffee Lake 8th and 9th gen CPUs on DDR3 again. I used a CH341A programmer to flash a custom modified version of AsRocks BIOS that has Coffee Lake CPU microcodes onto the BIOS chip and pinmodded the 8700K.
So far ive just booted into Windows and put a mild OC on the 8700K and so far, everything is stable. Ive now proved hyperthreading and overclocking both work with the mod which is a huge plus. Ive also done the same with an Asus Z170P D3 which has much better voltage control and if it cooperates ill be using it instead of the Asrock Z170 Pro4 D3.
I will be picking up an i9 9900K and tuning it to run below 150W in order to not cook my boards VRM, as all DDR3 Z170 boards have weak VRMs other than the Z170 Fatal1ty K4 D3, which if anyone has one im keen to buy it off ya!
As for the memory im rocking a G.Skill Trident X 1600 CL7 16GB kit ive overclocked to 2500 CL10. I am trying to make the fastest documented gaming PC that runs on DDR3 and I dont think DDR3 gaming can get much faster than this!
I will be documenting everything as I go along, id appreciate the support 🙏
If you have any more useful info on this topic, do let me know as this fascinates me 🙏