Having problems getting my GQ-4x4 to work on my new pc with windows 10. Getting a message that the burner isn't connecting to the software. Was fine on the old pc. Tried to update driver in case that may have been the problem, but was unable to - not sure if this was the problem anyway. Have also tried the early software that came with the burner & the latest software from the mfg site.

Anyone know if the problem is driver related & what to do, or what else I could try to get it working?

Thanks.

Great, thanks, will try that.

If you are using the new 2732 "fakes" out there like the one below, you can usually get them to work if you set the burner for generic 2732 & programme @ 25V. Were your chips new/fakes or used? The fact you are getting a similar failure rate across all of them would seem like the case as that would not happen with a bunch of used unless all were compromised in the same way.

There are the fake new Hitachi's out there as well.

I just got another lot of used HN462716 eproms the other day, never had a problem with any lots I have bought & they are always erased when I get them.

https://www.ebay.com.au/itm/363837388333?hash=item54b665f62d:g:nY8AAMXQjwVQ~Uq5

https://www.ebay.com.au/itm/123502210036?epid=1111725623&hash=item1cc14e2bf4:g:kmkAAOSwM7lckKHh&amdata=enc%3AAQAIAAAA4PG9ZNov3OkZeugHtzWAtkp03WWAtTn5SjdyMHcazMp7Av%2F1qstjLaABWHXtM0BWYDiNH2R7r74GjFQncfgrxnzI8v6DswOVd7pkC2WsKxVDOe6rhmjK4Q8%2FSZpBK164FNNphOSa8gTxP92dQfK%2F7IUV9EUlyDA5Jcb%2FpwtKmc5f645HTmW20zfDknyU3s8o%2Fmwed%2F4tAQ1lcd5XULnBOivsj5ss2bm81Jj1pc0Oae7pFRrtNEd07Q%2FFBDm0oYiQQ%2BRm3rutEb2TfD1LxaV9kMTr2j5pvYCPVAOrTauTVWfE%7Ctkp%3ABFBMgPmGnfRi

IMG_4812 (resized).JPG

I had a note on my tube of these bootleg 2732s to programme set up as Generic 2732 at 25V - I thought andrew @Barakandi may have suggested this somewhere along the line? can't remember. So lower voltage not higher is recommended.

So the chinese M2732A chips need to be programmed at 12.5V to start with, if that doesn't work then try 21V & then 25V as you don't know really what they actually really are. Then some won't work regardless.

Used pulls are a much better option than these I think.

Sounds like you just got a bad batch from that seller.

Great info Quench! that's a great resource to definitively determine what chip you have & the programming voltage.

Agreed the silicon die matches the NS part. Also the other NS part NM27C32Q-45 is identical to the ST remarked eproms with the larger die that some have in the above pics..

I have looked very closely under magnification & the chips I have & they are not used, sanded & refinished chips, they are brand new for sure.

Would these be then newly manufactured chips based on the NS silicon die(s) & then marked ST to simply sell for more than an NS chip?

That would explain why those particular remarks worked with a 25v programme.

Yes, referring to the pics in post #83. I had another close look, here is a close up pic of one, yes remarks as you said, these are very good & do not look like the usual remarks where the top has been sanded, quite often a bit crooked too.

I think the whole chip maybe has been sandblasted (with maybe the glass covered) to look uniform then retinned/restamped. The top of the legs look sandblasted.

IMG_4825 (resized).JPG

You saw the question & pic about the silicon before I edited it out! I realised the silicon blobs were of no importance & probably there from the factory or even added to the remarks.