Quadra 700 Video Ram Problem ...

[franklyn]

I have 2MB of Videoram but the System show up only 512kB of Videoram ...

 

[finkmac]

where did you get those vrams?

try testing them in another machine first.

 

[franklyn]

PurpleRAM 256kB 68-pin VRAM SIMM Macintosh by Jurassic Computing on Tindie

PurpleRAM 256kB 68-pin VRAM SIMM for Apple Macintosh computers

www.tindie.com

I think it worked a few months ago.

I can only test the Simms in a Performa 475 but I think the Simms are ok ...

 

[iigs123]

are you able to set colors > 256? Perhaps tattletech is only reporting _current_ settings, not available or something.

 

[finkmac]

I can only test the Simms in a Performa 475 but I think the Simms are ok ...

test them in that system first

 

[franklyn]

are you able to set colors > 256? Perhaps tattletech is only reporting _current_ settings, not available or something.

I have in the monitor panel under System 7.1 only 640x480 with 256 Color max and with System 7.6.1 640, 832 (256 Color) and 1152 (16 Color) ...

 

[iigs123]

Darn. I have a purple VRAM or two as well, they are quite well made. The only other immediate thing I can think of is to clean the sockets well with deoxit or something.

 

[franklyn]

I'm currently testing the 6 SIMM modules in pairs of 2 in my Performa 475 and one SIMM is defective. The lower half of the screen is faulty. Should I try resoldering the faulty SIMM?