05-01-2019
08:31 PM
- last edited on
03-05-2024
01:52 AM
by
ROGBot
11-22-2021 01:18 AM
Mollari wrote:
Here I marked the Primary side. Blue are the FETs and red are the electrolytic capacitors for the 19V rail
After soldering the FETs and C on primary side:
The secondary side needs the red marked capacitors and every ceramic capacitor from a spare board (mine was a G20CB rev. 1.02 from where I get every C.
The electrolytic capacitors must be soldered on the bottom side of the board, otherwise there is no place. I do not have a photo from this.
To solder the FETs I prepared the place first. You need hot air and a good iron to prepare the surface with solder. After that you simply place the part on the surface. With hot air in that region solder will melt and you got it. Do not use to much solder and use any kind of hotair gun with a very small nozzle to heat only the region of interest. Be careful not to burn and delaminate your board. Here is a photo of the G20CB from where I got the cemaric capacitors:
For HT you can find it here:
It is possible, that you can´s see that entries because you do not have access to them.
I unlocked many features of the BIOS. Instructions for that you find on win-raid.com . For each hidden setting you have to set access mode to "supervisor". I dont remember wether the HT feature is locked or not.
11-22-2021 01:41 AM
11-22-2021 01:55 AM
Mollari wrote:
Ok, experience in electronics and soldering are good signs that you will have success.
Yes, you marked it completely correct. These FETs are Power N-channel MOSFETs from OnSemi (NTMFS4C09B). You can buy that MOSFETs. The current product number is NTMFS4C09N. The B or N at the end does not matter. Each of them has a Id of 52A. DATASHEET
I thought about replacing that FETs with NTMFS4H01N which has a very low Rdson and a max current of 334A !!!. It may give a bit additional performance at the end because of the very low Rdson, but you have to think about Isat of the inductors. I think with the current modifications we get near or slight above saturation current (Isat). If you want, you can try that NTMFS4H01N. They are available too.
But don´t forget these four 3V, 820µF Low-ESR electrolytic and the bunch of ceramic capacitors at socket bottom side. These are a must-have to avoid thermal throttling of the VRM (mainly the inductors).
No, sorry, I can´t upload my bios because of the Windows Product Key inside. But if you wan´t I can modify yours.
Ah... I forgot something essential:
You will need liquid metal (Thermal Grizzly Conductonaut for example) to keep CPU temperatures around 70 to 80 °C at full load. With regular thermal compound the temperatures will be 20°C higher resulting in thermal throttling.
11-22-2021 02:07 AM
11-22-2021 02:28 AM
11-22-2021 03:15 AM
Mollari wrote:
hey. I found something about the 3V electrolytic capacitors
APAQ AR5K Series
Partnumber: 3R0AR5K821M06X8C
and the 25V electrolytic capacitors:
APAQ AVEA Series
Partnumber: 250AVEA270M0606
Look in the datasheets. ESR and so on is given, so it´s possible to find mating types.
11-22-2021 07:49 AM
11-22-2021 08:29 AM
11-22-2021 09:10 AM
Mollari wrote:
thanks... this is the unlocked version:
https://1drv.ms/u/s!AqVNqlE7WQvUgbJEfENgsCtcfXKwVQ?e=b3QMKw
11-22-2021 01:34 PM
Mollari wrote:
thanks... this is the unlocked version:
https://1drv.ms/u/s!AqVNqlE7WQvUgbJEfENgsCtcfXKwVQ?e=b3QMKw