Welcome, Guest. Please login or register.

Author Topic: AmigaOS 4.1 Classic Available To Buy  (Read 69931 times)

Description:

0 Members and 5 Guests are viewing this topic.

Offline delshay

  • Hero Member
  • *****
  • Join Date: Mar 2004
  • Posts: 1009
    • Show all replies
Re: AmigaOS 4.1 Classic Available To Buy
« on: June 06, 2011, 06:39:47 AM »
with a little modifcation Blizzard PPC card can take *any* simm module.

one modifcation can be done by most users,the other it's recommended a expert should do this to avoid damage to the card.
-------------
power is nothing without control
 

Offline delshay

  • Hero Member
  • *****
  • Join Date: Mar 2004
  • Posts: 1009
    • Show all replies
Re: AmigaOS 4.1 Classic Available To Buy
« Reply #1 on: June 18, 2011, 06:41:23 AM »
Quote from: Karlos;640161
I would suggest that if it works reliably with all the waitstates disabled, then try that. Otherwise I'd suggest testing it set to 60ns mode and in either case, compare it against some other 60ns rated memory.

There's really no rush for this, I was just curious.


two take advantage of 50ns simms go to ram menu and disable everything,but with high speed bus and *256Mb* ram (ie 67.666 low end Blizzard PPC) you may not be able to use this.

1. the Blizzard chipset(s) can overheat and damage the card. **WARNING**

2. there are poor 50ns simms and some simms are still not fast enough. there are 60ns simms that are faster than some 50ns simms.

i did a ragemem test and all the figures show its faster than a Cyberstorm 233Mhz PPC,but with 128Mb Ram speed reads over 100Mb sec. (OS4.1) PCI bus speed can read 7 & 21Mb top end.

to get around the problem iv checked each and every dram chip,as dram chips do not all overclock the same even with the same part number,so my simms are fined tuned and hand built which allows me to overclock to 83Mhz with 256Mb ram.

Blizzard PPC card need faster Dram chips than my 43ns simms,anyway will upload screenshot soon.

Bvision Update: had a few problems here,Bvision now overclock to 116Mhz with no problems but has shown it may overclock to 125Mhz,i can use workbench with Sgram @122Mhz. (modifiyed Bvision driver OS3.9)
« Last Edit: June 18, 2011, 07:09:36 AM by delshay »
-------------
power is nothing without control
 

Offline delshay

  • Hero Member
  • *****
  • Join Date: Mar 2004
  • Posts: 1009
    • Show all replies
« Last Edit: June 20, 2011, 09:42:28 AM by delshay »
-------------
power is nothing without control