Apollo 1260 slow as 1240

[Xanxi]

Hello.

I have recently acquired an Apollo 1260 board, which CPU is a 680EC060-060 currently clocked at 50 Mhz with a 50 Mhz quartz.

As discussed by someone on another apollo thread, my jumpers are set to 060 ON, RAM ON SCSI OFF and 040 CLK (won't boot on 060 setting).

The problem is this board does not outperform my previous 1240@40Mhz as it should.

Maybe a library problem: i have installed from an apollo driver disk found on internet 68060.library version 60.0, 68040 library version 60.0 and a so called 68o4o.library version 37.30.

Sysinfo give me about 28000 dhrystones with this board, equivalent to a fast 68040, and SysSpeed about 46 MIPS, reporting it as a 10Mhz CPU.

Strange!

Can someone with this board help a bit?

Thanks.

[Xanxi]

Yes it's a second (third?) hand board and i don't know if it is a genuine board or a hacked/upgraded board. It seems that the Apollo is able to run LC and EC 060 and a fast version @ 75Mhz is known.

The manual says to use the CLK jumper on 040 with a 040 CPU or a 66Mhz 060 CPU, or on 060 with a 50Mhz 060 CPU.

Note that i have tried a 80 Mhz quartz from my 1240@40Mhz on this board to see if it would boot, and it does not. If the PCU was downclocked to 40 Mhz it should have, but surely not à 80Mhz, then i think it gets the full clock and not half of it.

[Xanxi]

Sure, but how about the libs?

by the way, notice that the 50Mhz version pictured at the BBoAH has its clk jumper closed on 060.

[Xanxi]

Well, i read on internet that Motorola has shipped some full 060 under the marking EC060. As a matter of fact, benchmark programs seem to find MMU and FPU with this board.

Still slow as hell though.

[Xanxi]

Thanks to PG and his special 060LC libraries, i have gained almost 20 MIPS to shine at 65 MIPS, a value rather normal for a 060@50 Mhz.

However, i am still unsure this CPU has really no MMU and FPU or if it is a full 060.
Indeed, RemApollo, which use MMU, seems to be working.
AmigaAMP, which exist in both normal and noFPU version, is working in both if i use the correct libraries.

So how comes this cpu is faster with LC libs if it is a full CPU?

Any way to truly test FPU and MMU?