Anyone else with a NewerTech PowerPump (Q700/900/950)?

[pb3623]

I have a clock-chipped Q700 (66 MHz oscillator) with a 50 MHz Apple 601 PDS card (basically an Apple-branded PowerPro 601) and PowerPump. For those not familiar,

NewerTech PowerPump - Quadra 700/900/950 (eBay)

Newer Technology's PowerPump Accelerator - Unboxing and Installation (YouTube) 

It accelerates the stock 040 as well as the PPC PDS card and has a NuBus portion that wedges under the PDS card (which also feeds power to the included PDS fan) so you don't lose that first NuBus slot.

There's a ROM SIMM that connects to the NuBus card, as well as the two wires - hook & claw - that connect to the clock crystal and IC chip @ U54. There's a jumper on the SIMM for switching between the Q700/950 (or 25/33 MHz - I assume the 900 is the same as the 700 setting because of this).

But I can't get it to work and, frankly, I'm too lazy at this moment to take out the power supply in my 950 to test it there.

The PDS card is already accelerated to 66 MHz because of the 040 clock-chip and Clockometer confirms this. But I should be able to crank it up to 80 MHz without a problem and here's where I need the help because neither TattleTech (which I know isn't 100% reliable) nor APD report the presence of that NuBus card. PowerPump CPanel 1.01 also throws an error. When I actually clip the red "claw" to the upper-left leg of the IC, the machine doesn't even POST/chime, in either PPC or 68k modes. The ROM is fully seated and the cabling appears correct.

The Q700 as I bought it was missing a 68040 so I thought that was the problem - I actually bought a 50 MHz variant on eBay and installed it a few days ago - the 040 works but the PowerPump is still dead. 

I think the ROM SIMM handles the ROM patching and the NuBus card has all of the logic/heavy lifting. Even if the 66 MHz crystal is throwing off the detection routines, (where it's expecting 50 MHz), I figured setting the SIMM to a Q950 would work around that.

Same results if I pull the 601 card. Does anyone have one of these that might have some ideas? Thanks in advance.

 

[Macunix]

I have an Output Enablers socket in my Quadra 700 that allows me to swap out clock oscillators and I cannot get my system to boot with anything higher than a 74 Mhz oscillator which equates to a 37 Mhz speed for my CPU.  I suspect the issue you are seeing is because the other hardware on the Quadra 700, beyond the CPU, cannot support 40 Mhz.  As a result, it won't boot.  I use a 66 Mhz oscillator (for 33 Mhz CPU) as it is the most stable and doesn't freeze up like I often get with the 74 Mhz oscillator.

 

[pb3623]

Hmmm... but that's what a PowerPump is supposed to do for a Quadra 700 - it boosts the system clock speed up to 40 MHz (it's variable and it's not the default speed). The 68040 CPU I bought is rated for 50 MHz so that's not the bottleneck. It has a "panic button" on the back of the NuBus card (the slot cover) that is supposed to revert to defaults but it doesn't have any effect.