CWWK i5-1235U 6 port i226 report

[fta]

Thanks for the suggestions. Indeed, don’t want the risk. I’ve been looking at the GST90A15-P1M but it’s output is 6A. Whereas my current is at 8A. Maybe a complete n00b question, but shouldn’t it be equal or more (the replacing power supply)?

Your original is 8A@12V or 96W. This Mean Well is 6A@15V or 90W. I can't remember where I saw it, but the input on this box will do up to 19V. 90W is plenty since the CPU has a max of 55W.

 

[fway]

Your original is 8A@12V or 96W. This Mean Well is 6A@15V or 90W. I can't remember where I saw it, but the input on this box will do up to 19V. 90W is plenty since the CPU has a max of 55W.

The box consumes something less that 60W at full load and ~15 W at idle. 6A x 12V = 72W. So, a 6A supply is more than enough.

 

[fta]

The box consumes something less that 60W at full load and ~15 W at idle. 6A x 12V = 72W. So, a 6A supply is more than enough.

On the 1235 and up with a PL2 of 55W, it will consume much more than 60W at full load. Mean Well makes an 80W 12V power supply, but that's cutting it too close for my comfort. I would not go less than 90W.

 

[ecf8427f]

Hi, is there somewhere the exact pinning documented of the serial header on the CWWK i5-1235U 6 port motherboard from CWWK?

Hi,

let me answer my own question.

Previously, after I ordered mine, I also contacted the manufacturer but did not receive a valid answer.

I today checked and it is a default COM port connector. It has 9 pins. The 10th pin is missing. The 2nd is RX, the 3rd TX and the 5th is GND. I connected those 3 PINs to an FTDI USB2COM (! not TTL) and got it working.

 

[fway]

On the 1235 and up with a PL2 of 55W, it will consume much more than 60W at full load. Mean Well makes an 80W 12V power supply, but that's cutting it too close for my comfort. I would not go less than 90W.

note that whatever voltage you put into the box from the outside (19V-12V), it will be clamped internally by an input regulator to 12V. What matters is the current rating. So, a 15V 6A supply from the outside will only really deliver 12v 6A ultimately on the board. The current varies on demand….the voltage will be fixed at 12V…unless there is a current starvation which will cause the voltage to droop (and crash the box).

I now have one of the Meanwell GST90A15-P1M supplies, 15V 6A, but ultimately viewed to the board as 12V 6A (70W total delivery on the board). It also has an EneryStar VI rating, which as good as you can get. The adapters that come with the box have no Energy Efficiency rating, which is totally suspicious to me.

 

[fta]

note that whatever voltage you put into the box from the outside (19V-12V), it will be clamped internally by an input regulator to 12V.

If that's the case, I would not use either of the listed Mean Wells and would get the GlobTek. 72W is not enough for the 1235+ CPUs.

Here is full load on my 1235:

 

[fway]

If that's the case, I would not use either of the listed Mean Wells and would get the GlobTek. 72W is not enough for the 1235+ CPUs.

Here is full load on my 1235:

View attachment 29470

That is 84.27W of AC power. The adapter is 89% efficient at most. This means 75W DC is being consumed. The Watt rating for the power supply is what it can supply on the DC side.

I’ll give my i7-1265u a check in the next couple of days. Were you running through PassMark items and saw that high number?

 

[fta]

That is 84.27W of AC power. The adapter is 89% efficient at most. This means 75W DC is being consumed. The Watt rating for the power supply is what it can supply on the DC side.

I made a mistake. I took my time to check the AC power. It had already throttled some when I looked at it and got the 84W number. It's actually 94W when at the full 55W load: 84W DC.

I’ll give my i7-1265u a check in the next couple of days. Were you running through PassMark items and saw that high number?

Prime95 with small fft. This is the same test that crashed with the "96W" power supply that came with it.

 

[ordor]

Did anyone try undervolting this pc?
Do you know how to do so?

 

[fta]

Did anyone try undervolting this pc?
Do you know how to do so?

Yes. Use my bios and the set the AC load line to a lower value. I’m using 180, but you can go quite a bit lower. The disadvantage of going lower is it starts affecting performance more.

 

[stegg]

has anyone tried to use the 4-pin connector for power in?
I mean the one at the right of the six lan ports. It would be awsome to attach to an atx power supply in a NAS case

 

[fway]

Yes. Use my bios and the set the AC load line to a lower value. I’m using 180, but you can go quite a bit lower. The disadvantage of going lower is it starts affecting performance more.

I believe 230 is default for Gen12, right? (0 = auto, which is 230)

 

[weiyiaw85]

Hello Guys,

I just receive my unit I5-1235U and I have purchased Samsung DDR4 32GB x 2 and Samsung 990Pro

but during the test I notice

1) Samsung memory is only detected 1600Mhz - I did some research , most probably need to unlock upgrade the BIOS ?
2) My Samsung 990 PRO RUNNING ONLY 1.7K RESULT , soooo slow ...(I'm not sure why) but I notice in Device manager the ControllerDriver is Standard Driver
3) I can't find alot of driver in Device Manager (even running windows update)

 

[goh]

note that whatever voltage you put into the box from the outside (19V-12V), it will be clamped internally by an input regulator to 12V. What matters is the current rating. So, a 15V 6A supply from the outside will only really deliver 12v 6A ultimately on the board. The current varies on demand….the voltage will be fixed at 12V…unless there is a current starvation which will cause the voltage to droop (and crash the box).

I now have one of the Meanwell GST90A15-P1M supplies, 15V 6A, but ultimately viewed to the board as 12V 6A (70W total delivery on the board). It also has an EneryStar VI rating, which as good as you can get. The adapters that come with the box have no Energy Efficiency rating, which is totally suspicious to me.

Are you sure about this? If I remember correctly this is true for linear regulators, but that would create a lot of heat (all of this waste current would become heat). Surely it must be a switching regulator which would then have an output current higher than the input current?

 

[fway]

Hello Guys,

I just receive my unit I5-1235U and I have purchased Samsung DDR4 32GB x 2 and Samsung 990Pro

but during the test I notice

1) Samsung memory is only detected 1600Mhz - I did some research , most probably need to unlock upgrade the BIOS ?
2) My Samsung 990 PRO RUNNING ONLY 1.7K RESULT , soooo slow ...(I'm not sure why) but I notice in Device manager the ControllerDriver is Standard Driver
3) I can't find alot of driver in Device Manager (even running windows update)


View attachment 29481

1600MHz is the clock speed for DDR4-3200 (DDR is double data rate)
Did you plug your 990Pro into the x1 slot instead of x4 M.2?

 

[beisser]

the speeds on his 990 pro are too fast for the x1 slot though. that one maxes out a bit short of 1GB/sek

edit: i actually just tested a 960pro in the x1 slot and im getting about 800 MB/sek. his 990pro is definitely too fast for x1

 

[fta]

I believe 230 is default for Gen12, right? (0 = auto, which is 230)

That sounds right. I think it shows the default in the BIOS screen.

 

[fta]

Are you sure about this? If I remember correctly this is true for linear regulators, but that would create a lot of heat (all of this waste current would become heat). Surely it must be a switching regulator which would then have an output current higher than the input current?

It didn't sound right to me, either, but I'm not an expert in these things.

 

[weiyiaw85]

1600MHz is the clock speed for DDR4-3200 (DDR is double data rate)
Did you plug your 990Pro into the x1 slot instead of x4 M.2?

I plug is x4 long m.2 slot , short one I didn’t connect anything

 

[fway]

Are you sure about this? If I remember correctly this is true for linear regulators, but that would create a lot of heat (all of this waste current would become heat). Surely it must be a switching regulator which would then have an output current higher than the input current?

We are likely diverging here from the main subject, but as you raise the input voltage on the input to the regulator on the mainboard it becomes less efficient. Any time you have a regulator, the larger the difference in regulation from input to output, the lesser the efficiency. This is for switching regulators. The difference from 15V to 12V input is about 3-4% loss at the higher input voltage….where both have a 5V output on the other side. HW developer here.