VAXStation 4000/90, Reset Problems...

Hi, at the Weekend I've got an Vaxstation 4000/90 with 64MB RAM and a 2,1GB Disc from a friend. Powered it up today and found a Problem. The Machine doesn't start properly if it is switched on, the LEDs are all stuck on (0xff). If I switch it off then and on again in a short time, it starts up properly, is doing the diagnostics and tries to boot an (defective?) NetBSD 1.1 that is loading the kernel but is getting then in a ?54 RETRY loop. Pressing the HALT Switch brings up the chevron... havn't tried to install something jet... Is that Error with the Reset/Startup known to someone here? I think it could be an dead capacitor in the PSU... Kind Regards, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583 www.tsht.de, info at tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741