5ghz+

[Star69]

This link is quite old, but has anyone seen anything like this?  
Some people just have too much time and money on their hands...

[bloodline]

Yeah that's pretty cool... but they'd get better results with an Athlon64 :-P

[keropi]

what a lie!!!!

[Karlos]

Back in the day, someone overclocked a Dec Alpha 262144 rated initially at 200MHz to 800MHz with cryogenic cooling. This was at a time when a P133 was 'state of the art' ;-)

[bloodline]

Karlos wrote:
Back in the day, someone overclocked a Dec Alpha 262144 rated initially at 200MHz to 800MHz with cryogenic cooling. This was at a time when a P133 was 'state of the art' ;-)

I still chuckle to my self when I see post on this forum about overclocking thier 68k's by staggering amounts... like 5MHz... what's the point... :-D

[Karlos]

@bloodline

5MHz is quite a respectible overclock if you are starting from a 25MHz clockspeed.

680x0 parts were typically rated close to their tested speeds, unlike most x86 parts of the same era that were rated much lower than their tested speeds, all in the name of long term reliability. Ironic considering the typical lifecycle of their descendents :lol:

[bloodline]

Karlos wrote:
@bloodline

5MHz is quite a respectible overclock if you are starting from a 25MHz clockspeed.

680x0 parts were typically rated close to their tested speeds, unlike most x86 parts of the same era that were rated much lower than their tested speeds, all in the name of long term reliability. Ironic considering the typical lifecycle of their descendents :lol:

:lol:

That said, Motorola engineers claimed to run the 68000 at 50Mhz...

Though judging by how hot the 8Mhz 68k in the A600 gets, I'd say they were using an HCMOS part or something...

Yeah, pretty neat until the machine explodes or electrocutes someone from the condensation and liquid all over the mb...

I'll wait until next year when Intel and AMD legitimately break the 4ghz barrier, then 6 more months for the 5Ghz barrier.

Wayne

[Star69]

Wayne wrote:
Yeah, pretty neat until the machine explodes or electrocutes someone from the condensation and liquid all over the mb...

I'll wait until next year when Intel and AMD legitimately break the 4ghz barrier, then 6 more months for the 5Ghz barrier.

Wayne

Yeah, but surely there's no fun in that...

[Karlos]

Wayne wrote:
Yeah, pretty neat until the machine explodes or electrocutes someone from the condensation and liquid all over the mb...

I'll wait until next year when Intel and AMD legitimately break the 4ghz barrier, then 6 more months for the 5Ghz barrier.

Wayne

As long as it doesnt melt, the ice isn't a problem. It's not particularly conductive (conductivity of water tends to rely mostly on ion transport which requires it to be liquid to be effective)...

[bloodline]

Star69 wrote:

Wayne wrote:
Yeah, pretty neat until the machine explodes or electrocutes someone from the condensation and liquid all over the mb...

I'll wait until next year when Intel and AMD legitimately break the 4ghz barrier, then 6 more months for the 5Ghz barrier.

Wayne

Yeah, but surely there's no fun in that...

If you want fun crank up a 68030 to 5Ghz...  :-D

-Edit- That's only 100 times speed increase... now all you need is a memory subsystem that could cope :-/

[bloodline]

Karlos wrote:

Wayne wrote:
Yeah, pretty neat until the machine explodes or electrocutes someone from the condensation and liquid all over the mb...

I'll wait until next year when Intel and AMD legitimately break the 4ghz barrier, then 6 more months for the 5Ghz barrier.

Wayne

As long as it doesnt melt, the ice isn't a problem. It's not particularly conductive (conductivity of water tends to rely mostly on ion transport which requires it to be liquid to be effective)...

Indeed, pure water being a very poor conductor... add a few ions though :-D

[Karlos]

You can't beat a good 4M solution of hydroiodic acid for electrical conductivity :-D (For a water based conductor, I mean)

[bloodline]

Karlos wrote:
You can't beat a good 4M solution of hydroiodic acid for electrical conductivity :-D

One of my projects was to build a fuel cell.. I used 8M Potassium Hydroxide... heated to 80 degree C... that stuff was a pretty good conductor :-)

ice melts, or the electronics explode due to being too cold.  A CPU that'll run 200 degrees or higher isn't going to cancel out a -190 degree cooler.  The surrounding components that never reach high temperatures anyway will certainly not function too long at -140 to -190 degrees when their normal operating temp is room temp..