P775DM3-G flash bios for QTJ1

[PorcGras]

Hi guys! I received a P775DM3-G laptop for free from my brother and I immediately started looking into what people were using it for, and I must say I wasn't disappointed. So I decided to upgrade mine by putting a QTJ1 inside it.

I read all the topics and tutorials and anything I could find on how to do it, and I know that I have to flash a new BIOS so that the laptop will recognize the new CPU. People on here were talking about the dsanke bios mod and also using a version of it with ME disabled in order for the QTJ1 to be accepted.

 

That's good and all, but when I try to flash the BIOS using a USB stick, I get a big "insert a proper boot device error". I must be doing something wrong, I am honestly not entirely sure how the USB drive should be formatted (I made sure it is FAT32) or if there is anything special I should do to it. I ordered a CH341A programmer just in case I messed up the USB stick method and that should arrive soon.

Also, I am not entirely sure if I am supposed to flash a BIOS that technically doesn't support the current CPU, I honestly don't know if that's a problem or not.

 

Any help would be greatly appreciated 🙂 Thanks!

[PorcGras]

Ok, quick update, I was able to flash the BIOS using instructions from the last answer in this thread (I followed the link he sent with the thread started by dsanke, then I had to create a baidu account and download the files provided by him. If you patiently go through the readme you can do it, it's fairly easy), and flashed the file that @runix18 provided to the person that started the thread (the one with ME disabled)... but I am now unable to fit the CPU in my laptop... and accidentally bent a couple pins in the process which I was very lucky to be able to bend back (one of them is literally bunched up but it's either a ground pin or it somehow still makes contact without shorting anything).

 

The CPU came with 3 washers which I mounted:

- 2 under the lever thingy that presses the CPU down

- 1 under the screw used to catch the bracket under

 

And somehow it still doesn't really... sit right? Without the washers there was no change of mounting it, but even with the washers, it doesn't seem right. I don't know if I'm doing something wrong, but if anybody has any tips, that would be great 🙂

 

 

Another update 🙂 Success!!! I managed to get it to fit, one of the sellers on aliexpress had some really nice pictures showing that you are supposed to only put the washers under the 2 screws of the lever thingy, then remove the big screw that you push the bracket towards, then put the bracket nicely on top, screw in the big screw and then push the lever down 🙂 I was extremely scared to do it, took me a lot of self-convincing but I managed to get it to work.

 

The first time I put the CPU in, Windows would not start and I would get some dumb error regarding winload.efi???? Idk why exactly but what I did was to put the 7700K back in, create a USB drive with Windows 10 on it, then put back the qtj1... and the problem went away on its own? Somebody on the forum suggested Fn+D in case the laptop wont post, and after pressing it a few times windows loaded in with no problem 🙂 

 

I'll try to oc the cpu. It comes with a max wattage of 60W, but ticking the checkbox in throttlestop -> tpl -> mmio lock thingy and configuring my own pl limits, I managed to get the cpu pulling 100W (saw someone pulling 150W at 4.7Ghz, but I have no experience whatsoever OCing so I don't think I'll try that).

 

I hope this thread will be helpful to someone, I know that it would've been greatly helpful for me 🙂

 

If y'all got any tips regarding OCing and other upgrades, or any questions (not like I would be really fit to answer but I could try) then feel free to leave them here :)))  

[runix18]

On 3/15/2025 at 11:54 PM, PorcGras said:

Another update 🙂 Success!!! I managed to get it to fit, one of the sellers on aliexpress had some really nice pictures showing that you are supposed to only put the washers under the 2 screws of the lever thingy, then remove the big screw that you push the bracket towards, then put the bracket nicely on top, screw in the big screw and then push the lever down 🙂 I was extremely scared to do it, took me a lot of self-convincing but I managed to get it to work.

 

The first time I put the CPU in, Windows would not start and I would get some dumb error regarding winload.efi???? Idk why exactly but what I did was to put the 7700K back in, create a USB drive with Windows 10 on it, then put back the qtj1... and the problem went away on its own? Somebody on the forum suggested Fn+D in case the laptop wont post, and after pressing it a few times windows loaded in with no problem 🙂 

 

I'll try to oc the cpu. It comes with a max wattage of 60W, but ticking the checkbox in throttlestop -> tpl -> mmio lock thingy and configuring my own pl limits, I managed to get the cpu pulling 100W (saw someone pulling 150W at 4.7Ghz, but I have no experience whatsoever OCing so I don't think I'll try that).

 

I hope this thread will be helpful to someone, I know that it would've been greatly helpful for me 🙂

 

If y'all got any tips regarding OCing and other upgrades, or any questions (not like I would be really fit to answer but I could try) then feel free to leave them here :)))  

Glad that you made it work. Good job!!!

[PorcGras]

1 hour ago, runix18 said:

Glad that you made it work. Good job!!!

Thank you!!!

 

One small problem that I have now is that I seem to have lost the vbios I had before flashing this new bios :)) I do not have gsync anymore and trying to increase the monitor's refresh rate back to what I had before (I was running it at 100hz) doesn't work anymore :)) I suppose that the vbios sits somewhere inside the bios??? Though I am not sure as I have absolutely no experience with these things :)))

Also I checked and the bunched up pin is either ground or integrated graphics, but the integrated graphics don't seem to work :)) Not sure if it was supposed to work in the first place or if I need to change something regarding the BIOS or if it really matters :))

 

If you have any tips I would love to try them out :))

[JamieTheAnything]

9 minutes ago, PorcGras said:

Thank you!!!

 

One small problem that I have now is that I seem to have lost the vbios I had before flashing this new bios :)) I do not have gsync anymore and trying to increase the monitor's refresh rate back to what I had before (I was running it at 100hz) doesn't work anymore :)) I suppose that the vbios sits somewhere inside the bios??? Though I am not sure as I have absolutely no experience with these things :)))

Also I checked and the bunched up pin is either ground or integrated graphics, but the integrated graphics don't seem to work :)) Not sure if it was supposed to work in the first place or if I need to change something regarding the BIOS or if it really matters :))

 

If you have any tips I would love to try them out :))

Gsync is weird, in short, They only will support CPU's that actually exist and GPU's that should be installed, EX, 6-9th gen, + 10, and 20 series gpus =  Gsync,

However since you have the CPU equivilent of Missingno, it doesnt verify and disables Gsync.

 

[PorcGras]

23 minutes ago, JamieTheAnything said:

Gsync is weird, in short, They only will support CPU's that actually exist and GPU's that should be installed, EX, 6-9th gen, + 10, and 20 series gpus =  Gsync,

However since you have the CPU equivilent of Missingno, it doesnt verify and disables Gsync.

 

Aaaah, ok, I see 🙂 Thanks! 

[runix18]

13 hours ago, PorcGras said:

Thank you!!!

 

One small problem that I have now is that I seem to have lost the vbios I had before flashing this new bios :)) I do not have gsync anymore and trying to increase the monitor's refresh rate back to what I had before (I was running it at 100hz) doesn't work anymore :)) I suppose that the vbios sits somewhere inside the bios??? Though I am not sure as I have absolutely no experience with these things :)))

Also I checked and the bunched up pin is either ground or integrated graphics, but the integrated graphics don't seem to work :)) Not sure if it was supposed to work in the first place or if I need to change something regarding the BIOS or if it really matters :))

 

If you have any tips I would love to try them out :))

You can still achieve 100hz with Custom Resolution Utility

 

[PorcGras]

On 3/18/2025 at 8:58 AM, runix18 said:

You can still achieve 100hz with Custom Resolution Utility

 

I tried doing it in CRU by just copying over the default config and changing the refresh rate, but it still has the same issue. I'm not sure if I should change anything else 🙂 

[runix18]

On 3/17/2025 at 7:03 PM, PorcGras said:

Thank you!!!

 

One small problem that I have now is that I seem to have lost the vbios I had before flashing this new bios :)) I do not have gsync anymore and trying to increase the monitor's refresh rate back to what I had before (I was running it at 100hz) doesn't work anymore :)) I suppose that the vbios sits somewhere inside the bios??? Though I am not sure as I have absolutely no experience with these things :)))

Also I checked and the bunched up pin is either ground or integrated graphics, but the integrated graphics don't seem to work :)) Not sure if it was supposed to work in the first place or if I need to change something regarding the BIOS or if it really matters :))

 

If you have any tips I would love to try them out :))

Igpu will never work on this models as they are pure EDP laptops, the Mux switch circuit is not present, 

[PorcGras]

On 3/22/2025 at 11:06 AM, runix18 said:

Igpu will never work on this models as they are pure EDP laptops, the Mux switch circuit is not present, 

I see, thankuu! One more question (sorry that there are so many but I have 0 experience with mutant cpu's and stuff like this 🙂 ) :

Idk if I got the cpu with the worst memory controller possible or what but ... I was having issues in basically most applications with random "silent crashes" as in, no error codes no nothing. I ran a memtest86 memory test overnight and saw that it didn't pass, but more interestingly it had errors only on test 6 - block move. After a bit of digging I saw people recommending clocking down the RAM frequency, and so after a lot of trial and error I managed to get the test to pass and my system seems fairly stable so far (I'll make a post about it so somebody else like me that knows nothing doesn't have to suffer as much as me).

I was originally running 4x16GB of GSkill Ripjaws F4-2400C16D-16GRS (actually 32GRS cus it's two dual channel kits but whatever) at 2400MHz 16-16-16-39 timings. I tried messing with the timings and loosening them to like 18-18-18-41 or something but that didn't work. What worked though was downclocking to 2133Mhz 16-16-16-39 and also bumped the voltage from 1.2V to 1.35 (I doubt it really mattered at this frequency :))) ). If y'all got any better explanations/tips on how I could overclock the RAM and have it stable (I saw people saying they were running 2900-3200MHz 😞 ) please please please let me know 🙂 

[runix18]

3 hours ago, PorcGras said:

I see, thankuu! One more question (sorry that there are so many but I have 0 experience with mutant cpu's and stuff like this 🙂 ) :

Idk if I got the cpu with the worst memory controller possible or what but ... I was having issues in basically most applications with random "silent crashes" as in, no error codes no nothing. I ran a memtest86 memory test overnight and saw that it didn't pass, but more interestingly it had errors only on test 6 - block move. After a bit of digging I saw people recommending clocking down the RAM frequency, and so after a lot of trial and error I managed to get the test to pass and my system seems fairly stable so far (I'll make a post about it so somebody else like me that knows nothing doesn't have to suffer as much as me).

I was originally running 4x16GB of GSkill Ripjaws F4-2400C16D-16GRS (actually 32GRS cus it's two dual channel kits but whatever) at 2400MHz 16-16-16-39 timings. I tried messing with the timings and loosening them to like 18-18-18-41 or something but that didn't work. What worked though was downclocking to 2133Mhz 16-16-16-39 and also bumped the voltage from 1.2V to 1.35 (I doubt it really mattered at this frequency :))) ). If y'all got any better explanations/tips on how I could overclock the RAM and have it stable (I saw people saying they were running 2900-3200MHz 😞 ) please please please let me know 🙂 

From what I know this mutant CPUs have a not so good memory controler, but some people related that they can push 3200 no problem. So it all depends on the binning.

[PorcGras]

52 minutes ago, runix18 said:

From what I know this mutant CPUs have a not so good memory controler, but some people related that they can push 3200 no problem. So it all depends on the binning.

Well, ye, I get that. But the only stable setup being 2133MHz is literal trash.

I would understand 2800 or 2666, even 2400, but 2133? I had to waste so much time debugging, and reinstalling windows about 3 times (long story) and dealt with so many crashes 🙂 I do understand it's part of the game but still :)))