The cold helps because at gate level frequency scales with temp and voltage
Colder u need less voltage to operate core.something i learn from overclocking with ln2
Limited TF536 Run - Sort of Sales (All gone)
Moderators: terriblefire, Terriblefire Moderator
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Re: Limited TF536 Run - Sort of Sales (All gone)
I had the board in my lab running for a day. No issues. The same actual board AlenPPC has now. its not the power ic. I also replaced all socket connections. So its not the socket either.
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"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
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Re: Limited TF536 Run - Sort of Sales (All gone)
Just like to add that AlenPPC has built around 500 of my boards. He's not a newbie and this isnt a simple issue.
His built board has been back to me and returned to him working in so far as i could figure out (it was working as far as I could see when i got it). This isnt some silly solder joint bad or a bad IC or something. If that were the case this board would already be released.
If it were a PSU issue then other boards like the TF534 would very likely display the same issue as they have the same power supply setup and actually draw more power.
The lack of being able to figure this out is why the boards have sat on a shelf for 9 months.
His built board has been back to me and returned to him working in so far as i could figure out (it was working as far as I could see when i got it). This isnt some silly solder joint bad or a bad IC or something. If that were the case this board would already be released.
If it were a PSU issue then other boards like the TF534 would very likely display the same issue as they have the same power supply setup and actually draw more power.
The lack of being able to figure this out is why the boards have sat on a shelf for 9 months.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
- arkadiusz.makarenko
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Re: Limited TF536 Run - Sort of Sales (All gone)
What are chances that it is Amiga or Amiga PSU issue?
Do not trust people. They are capable of greatness.
~ Stanislaw Lem
~ Stanislaw Lem
Re: Limited TF536 Run - Sort of Sales (All gone)
Recieved a message than says me i post something illegal
Never do that post most probably im hacked
Never do that post most probably im hacked
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Re: Limited TF536 Run - Sort of Sales (All gone)
I deleted your last post because it was a one word reply repeating something that has already been covered and it was not helpful. Stop this.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
Re: Limited TF536 Run - Sort of Sales (All gone)
I tried this on A500 (fully recapped), A500+ and A1000, and I get the same behaviour. It is very odd. I have no issues with the 530 or the 534. I am using a newish (few years old) 250W AT PSU.arkadiusz.makarenko wrote: ↑Sun Jan 12, 2020 10:16 pm What are chances that it is Amiga or Amiga PSU issue?
I am using the exact same parts I used for the 330, including ram chips, CPUs and CPLDs.
Now I left the board soaking in alcohol for a few days, then I will try to remove any trace of flux, just in case it has anything to do with this.
- 8 Bit Dreams
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Re: Limited TF536 Run - Sort of Sales (All gone)
Ah! This may be Your issue!
ATX PSUs are not as good as You may think for Amigas, cause these are designed to use +12V as a primary voltage, while 5V rail is not as clean and accurate as Amiga needs to - there is too much ripple on some PSUs, beside of that if You use old long amiga psu cable (that has very big resistance) You will not get what You expect. Something that has adjustable 5V rail should be used.
ATX PSUs are not as good as You may think for Amigas, cause these are designed to use +12V as a primary voltage, while 5V rail is not as clean and accurate as Amiga needs to - there is too much ripple on some PSUs, beside of that if You use old long amiga psu cable (that has very big resistance) You will not get what You expect. Something that has adjustable 5V rail should be used.
Retro computer hardware & repair in Germany
Re: Limited TF536 Run - Sort of Sales (All gone)
It's AT, not ATX, they still make them new.8 Bit Dreams wrote: ↑Mon Jan 13, 2020 4:14 pm Ah! This may be Your issue!
ATX PSUs are not as good as You may think
Re: Limited TF536 Run - Sort of Sales (All gone)
I would like to buy one on the next batch.