Cyberstorm MkIII overheating logic chip

26 April 2010, 03:22

Hi, this is my 1st post here, so i do my introduction to you in the same time

i'm a 26 years old boy, living in france, and in the amiga seriously since 2007 (yeahh i'm a little newbie

)

i don't speak english perfectly, so, sorry in advance for my possible mistake, i try to do the best i can.

i own some amiga's models, 1000,500, 1200, 3000 (my looooove)

i have a cs MkIII in my 3000, i modded it by myself for overclocking, add a socket glued on the corner of the card for the 3rd oscillator, i can still use dimm ram in all bank

and, of course, replaced the XC 060 by a MC rev6

actually, i run with a 66 mhz oscillator, a little but sure overclock !

but my card seems to have a problem with the 4 big logic chip (cypress, lattice), they run extremly hot, specially the two on the right of the card (i mesured it at 87,7°C today... and my thermometer is not made for this kind of use, it's possible they run a bit more hot than this...) and today the machine become unstable after 5-6 min of use, i switch off, let cooling, and restart and i'ts ok again for a little time.

they always run hot, already before the overclock. and i tried again with a 50 mhz oscillator, they run very hot too, so it's really not the overclocking the cause.

i contacted Mr JJB for a repair, but he told me it's normal, it's a known problem of this card. and the only solution was to cooled it.

but now i really don't think it's so normal... i think i'ts a cause of a failure of something, but what...

i checked the voltage, 3,32 V and 5,02 V, it's ok...

someone else who have the same card can tell me if they run hot too ? or if my card is really faulty ?

many thanks

rkauer · 26 April 2010, 05:21

Put some low profile heatsinks over the chips and add a fan to help cooling they.

Problem solved.

cosmicfrog · 26 April 2010, 09:18

you don`t believe Mr JJB, then you in for a hard time

do what rkauer suggests

stachu100 · 26 April 2010, 10:37

I confirm that it's normal on CS MKIII and CSPPC (I have 3 of them). Adding small heatsink on top of the chip will help to cool them down.

26 April 2010, 14:48

ok, thank you

cosmicfrog : yes, i doubt for a time... 87,7 °C for a little chip like this, you can think it's not normal... and in fact, it's not normal at all.

26 April 2010, 03:22	#1
whaka Posts: n/a	Cyberstorm MkIII overheating logic chip Hi, this is my 1st post here, so i do my introduction to you in the same time i'm a 26 years old boy, living in france, and in the amiga seriously since 2007 (yeahh i'm a little newbie ) i don't speak english perfectly, so, sorry in advance for my possible mistake, i try to do the best i can. i own some amiga's models, 1000,500, 1200, 3000 (my looooove) i have a cs MkIII in my 3000, i modded it by myself for overclocking, add a socket glued on the corner of the card for the 3rd oscillator, i can still use dimm ram in all bank and, of course, replaced the XC 060 by a MC rev6 actually, i run with a 66 mhz oscillator, a little but sure overclock ! but my card seems to have a problem with the 4 big logic chip (cypress, lattice), they run extremly hot, specially the two on the right of the card (i mesured it at 87,7°C today... and my thermometer is not made for this kind of use, it's possible they run a bit more hot than this...) and today the machine become unstable after 5-6 min of use, i switch off, let cooling, and restart and i'ts ok again for a little time. they always run hot, already before the overclock. and i tried again with a 50 mhz oscillator, they run very hot too, so it's really not the overclocking the cause. i contacted Mr JJB for a repair, but he told me it's normal, it's a known problem of this card. and the only solution was to cooled it. but now i really don't think it's so normal... i think i'ts a cause of a failure of something, but what... i checked the voltage, 3,32 V and 5,02 V, it's ok... someone else who have the same card can tell me if they run hot too ? or if my card is really faulty ? many thanks Last edited by whaka; 26 April 2010 at 03:29.

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26 April 2010, 05:21	#2
rkauer I hate potatos and shirts Join Date: Oct 2007 Location: Sao Leopoldo / Brazil Age: 58 Posts: 3,482	Put some low profile heatsinks over the chips and add a fan to help cooling they. Problem solved.

26 April 2010, 09:18	#3
cosmicfrog The 1 who ribbits Join Date: Apr 2006 Location: leek, Staffs, UK Age: 56 Posts: 3,557	you don`t believe Mr JJB, then you in for a hard time do what rkauer suggests

26 April 2010, 10:37	#4
stachu100 Registered User Join Date: Mar 2009 Location: Poland Posts: 339	I confirm that it's normal on CS MKIII and CSPPC (I have 3 of them). Adding small heatsink on top of the chip will help to cool them down.

26 April 2010, 14:48	#5
whaka Posts: n/a	ok, thank you cosmicfrog : yes, i doubt for a time... 87,7 °C for a little chip like this, you can think it's not normal... and in fact, it's not normal at all.

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