TF360 Discussions

[alenppc]

Unless you know of a secret source that has them at a reasonable price, I would strongly suggest you do not buy them from China. 99% are fakes. Anything that has 75 printed at the end is a fake (unless it's an EC version, in which case it's probably a 50).

You can get real CPUs from legitimate sources for about $650 USD each, but somehow I doubt you want to do that either.

I think these will have to be shipped without CPU.

Hell, I am now stuck with about 30 fake 68EC030RP40s. They won't run at 50 mhz, so they were probably 25s reprinted or something...

Hi Alen,
Yes, indeed, that's what makes me worry. Im courious will TF360 run at different frequencies or will it be fixed at 75Mhz just like on TF330?
If frequency will be fixed, then probably rev.5 CPU's will not work, as these are running till 66Mhz only
have two rev.5 CPUs here for testing purposes on my 3660 builds, the price i paid is about 75€ each CPU..
Of course will ship TF360's without CPUs to keep price as low as possible, just hope any Amiga user has at least one 060 in sprares box

What about 030 fake CPU's? Can You please tell us more? These are branded as Freescale like on the picture ive posted previously?
https://www.exxosforum.co.uk/forum/viewt ... =10#p19456
Can You tell more where did You bought them, so other users can avoid this seller? Asked for return? Opened dispute?

That's the very same one that has issues - bought from Adeleparts obviously, and about 25-30% of them are working, the rest are not... so... I can't really open a dispute since they will run at lower frequencies.

[exxos]

I did have a supply of rev 6 CPUs, but. I stopped selling them due to costs, I had to buy like 20 at a time and sale price ended up at £120. But all were tested by myself to wade out the fakes and faulties and all tested at 95mhz.

Rev 1 maxes out at 66mhz.
Rev 5 maxes out at 75mhz.
Rev 6 maxes out at 95mhz.

Though some had managed to clock a bit more.

Fakes... Can tell due to random text locations..

IMG_0543.JPG (283.41 KiB) Viewed 4387 times

Fakes, tested mostly as rev 1.

DSCN3522.JPG (369.27 KiB) Viewed 4387 times

Fakes due to numbers ground off and reprinted.

DSCF0001.JPG (318.66 KiB) Viewed 4387 times

And yes I brought all these.

[utri007]

Just wondering. There are plenty 68040 cpus, minimal risk to get fakes. 68040 has it flaws but it still 4x faster by clock cycle than 68030 cpus. But you migh get even even cheaper than you can get 68030 cpus.

It is not that sexy than 68060, I know.

[8 Bit Dreams]

Well, 040 is getting very hot, You'll need an active cooling, there is not much space into CD32..

Beside of that, i really hope this adapter thingy for A3000/A4000 will work, and i really want to run 060 i to it..Shame TF360 doesn't have DMA support..

As about rev.1's - these are totally ok for 3660 cards,
However i prefer rev.5 because of less heat and good overclocking possibility, just need to find reliable seller and get 20 of them...

[terriblefire]

Just wondering. There are plenty 68040 cpus, minimal risk to get fakes. 68040 has it flaws but it still 4x faster by clock cycle than 68030 cpus. But you migh get even even cheaper than you can get 68030 cpus.

It is not that sexy than 68060, I know.

I looked at a dual 060/040 board.. the requirements for a 040 are a bit stricter. You need to have the clock up and running before the CPU is turned on (according to the handbooks etc). Plus you need 2 clocks for the 040.. just one for the 060.. So its way better.

[terriblefire]

Well, 040 is getting very hot, You'll need an active cooling, there is not much space into CD32..

Beside of that, i really hope this adapter thingy for A3000/A4000 will work, and i really want to run 060 i to it..Shame TF360 doesn't have DMA support..

As about rev.1's - these are totally ok for 3660 cards,
However i prefer rev.5 because of less heat and good overclocking possibility, just need to find reliable seller and get 20 of them...

I havent looked into what the requirements for DMA are for the A4000/A3000 but i can write to fast RAM from the 020 side bus this time. So DMA is definitely possible.

[go0se]

Realise this thread is veering a bit off topic but I'll chip in with a bad experience I had with these 030s

https://www.ebay.co.uk/itm/Manufacturer ... 3023358872

The two I purchased run correctly on two otherwise very stable TF330s for about 5-15 mins from cold then hang, cause random issues won't boot etc. Replacing the CPU with a RP33B in both cases solved all issues.

I didn't want to call fake because my experience with 030s is admittedly limited however they certainly don't seem to be performing as they should.

Unfortunate, as that is the same seller that supplies the RP33Bs which I, and I think a lot of other people have had success with.

Perhaps a separate thread to flag questionable sources ? I appreciate people might not want to reveal if they have a source of quality chips if numbers are limited but a thread to flag the bad ones or at least help people make an informed decision as to what you actually might be getting before purchase. I think this would be even more useful if moving up to the 060 three figure 'Big League' in terms of price.

[dalek]

I've had similar issues with the RC50C's from chinabay. They work okay at 33MHz but not at 50 :/. They're probably a slower part relabeled.

[8 Bit Dreams]

Ok,
im prepared for TF360 tests

2019-04-21 15.50.01.jpg (81.78 KiB) Viewed 4351 times

[alenppc]

8 bit dreams, please let us know if any of those 060 are not fakes and if so where you got them from. Hopefully I'll get to build my 060 prototype soon too