This is for sure not normal. A green screen on the RGB Video port indicates bad chip ram, hence why BigGun was asking about the ram expansion. EXTERNAL LINK The power requirements of the original CPU and the Vampire are vastly different. So it could well be that an A500 with a degraded CPU socket or dried out capacitors works with the original CPU but not with the Vampire. But to get a green screen...... As a comparison, I have an A2000 with a Vampire. I tried a CPU slot adapter and the Vampire gets stuck on a yellow screen (which can be similar to a green screen). With the original CPU, it boots.....mostly. This adapter is tin plated (which I am informed by two electronics engineers have told me is not good and can lead to increased oxidation and poor contact with time). When I replaced this CPU slot adapter which is copper, both the Vampire and the original CPU work. Reliably. So I can believe that perhaps something is not well with your socket, despite your cleaning efforts. This is of course a different scenario to your situation but the key point is, that contact with the CPU might still be an issue for you. Can you try your Vampire in another machine? Also, you mentioned that the CF card (never?) worked. This is also very strange. If you have used a CF card adapter listed on the wiki here bellow and a Sandisk, this should work. https://wiki.apollo-accelerators.com/doku.php/vampire:v500-v2plus:peripherals Before you invest any more money, I think the best thing to do now is find someone willing to let you try your vampire in their A500. Ideally an A500 is unexpanded, which has a refurbished/new PSU and has had the recap done (to eliminate the possibility that you are testing in another degraded A500). It is really hard to say what the problem could be. Without the the IDE problems, one could say that perhaps that the CPU socket in your A500 is unwell. But with the IDE problems......the jury is out. This is starting to sound like help via forums might not really bring this problem to a conclusion now and that someone needs to take a look at it (both your vampire and your A500). Where in the world are you? Perhaps a kind soul here is close enough to you and is willing to help. If you are anywhere near Zurich I am willing to come with my A500.
|