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Author Topic: 68030 not running at 25Mhz  (Read 11604 times)

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Offline AmmoJammo

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Re: 68030 not running at 25Mhz
« Reply #14 from previous page: November 06, 2012, 01:26:04 AM »
ah, so that was new crystal, and new CPU?

interesting...
 

Offline AmmoJammo

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Re: 68030 not running at 25Mhz
« Reply #15 on: November 06, 2012, 01:34:22 AM »
try removing the FPU?
 

Offline AmmoJammo

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Re: 68030 not running at 25Mhz
« Reply #16 on: November 06, 2012, 01:39:36 AM »
also, do you have your 68000 in the accelerator? maybe try with/without that?
 

Offline AmmoJammo

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Re: 68030 not running at 25Mhz
« Reply #17 on: November 06, 2012, 01:47:45 AM »
and while your amiga is apart (like it was ever together) could you please take a good quality, highish resolution pic of the accelerator? just from the top, straight down ;)
 

Offline AmmoJammo

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Re: 68030 not running at 25Mhz
« Reply #18 on: November 06, 2012, 09:31:36 AM »
It wont result in the cpu running at 13.4mhz though :/ what does it do it "fall back" mode?
 

Offline AmmoJammo

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Re: 68030 not running at 25Mhz
« Reply #19 on: November 06, 2012, 10:24:48 PM »
Quote from: mongo;714030

The 68030 on this card always runs at 28.5 Mhz. The crystal is for the FPU only.

is it set by the original crystal on the motherboard?
 

Offline AmmoJammo

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Re: 68030 not running at 25Mhz
« Reply #20 on: November 07, 2012, 01:42:10 AM »
Quote from: bloodline;714058
Sysinfo has no idea what clock speed your CPU is running at. It just makes a guess based on some timed loops which run at different speed on different CPUs... It probably isn't accurate on anything other than a 68000...

Quote from: Lurch;713800
AIBB/sysspeed all state 13 or 14.5Mhz so something weird going on here.

25Mhz Crystal
25Mhz 68030
25Mhz FPU

Maybe something software wise :-/ 68030.library?

even if it is reporting the speed wrong, it's still benchmarking as a 13Mhz CPU...