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Date: Thu, 5 Mar 2020 20:09:38 +0100
From: Albert Veli <>
Subject: Re: ZTEX 1.15y boards for sale

On Thu, Mar 5, 2020 at 7:53 PM Albert Veli <> wrote:

> One original ZTEX board and two clones. All three worked great with john.
> I just had to replace some of the fans and remove some dust. Did not try to
> overclock, just used the default frequency.
> Btw, on two of the boards I replaced the four small "north bridge type"
fans with one big case fan, which is more quiet. A 192mm case fan fit
perfectly over the four heat sinks. It is very quiet. To force the air to
go through the cooling fins and not between the FPGA:s I placed small
pieces of thick paper to block air between the FPGA:s. I think that should
improve the cooling a little bit. But I'm not sure if it is more or less
effective than four small fans.

> Regards,
> Albert

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