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#1 |
Registered User
Join Date: Feb 2022
Location: SLEEPY HOLLOW, NY, USA
Posts: 11
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Amiga 3000D Ramsey 04 Static Column
Does the Amiga 3000D rev. 9/03 25MHz/no accelerator/DMAC-02/Ramsey-04 /Buster-07 support improved access speed using Static Column zip fast RAM? I got some from utsource.net but setramsey reports no Static Column mode and 'setramsey STATICON' results in a hanging machine. I installed a whole bank to test, 8 chips in the correct positions. The memory is detected as 4MB. The SysInfo speed test is still around .9 instead of the 1.0 I hoped for.
This is what I bought: https://www.utsource.net/itm/p/8648050.html Would upgrading to Ramsey-07 while staying at DMAC-02 make sense? How can I check my zip ram hasn't been relabeled as static column when in fact it is not? |
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#2 |
ex. demoscener "Bigmama"
Join Date: Jun 2012
Location: Fyn / Denmark
Posts: 1,653
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The kickstart checks for static column ram and enables static column mode if detected. Are you sure your ram is actually SC?
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#3 |
Registered User
Join Date: Jan 2005
Location: Umeå
Age: 44
Posts: 962
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The OS will automatically detect static column ram if all of the modules are that. Not familiar with setramsey, but if it reports that ramsey is not using static column mode and the machine hangs when enabling it, the ram is most likely not static column.
Switching to a -07 ramsey will not change that. |
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#4 |
Registered User
Join Date: Jan 2005
Location: Umeå
Age: 44
Posts: 962
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Ran SetRamsey on my rev 6.1 A3000 (stock Ramsey 04, Super DMAC 02) with 16MB of static column memory (HM514402CZ6 chips):
Code:
1> SetRamsey USAGE:- SetRamsey STATICON, STATICOFF, BURSTON, BURSTOFF, WRAPON, WRAPOFF REFRESHOFF, REFRESHON n (n = 154, 238 or 380) SetRamsey V1.50 by Nic Wilson CURRENT SETTINGS Static Column Mode - OFF Burst Mode - ON Burst Wrap Mode - OFF FAST RAM chip Size - 1 Meg by 4 bit Refresh Rate - 238 clocks As a reference, I also ran SpeedGeek's RamseyConfig (after reboot to clean out any SetRamsey stuff): Code:
> ramseyconfig RamseyConfig 1.2 ©SpeedGeek 2018 Ramsey version = $D Page mode = 0 Burst mode = 1 Wrap mode = 0 Refresh mode = 238 Code:
8.Temp:> ram:SetRamsey STATICON SetRamsey V1.50 by Nic Wilson CURRENT SETTINGS Static Column Mode - ON Burst Mode - ON Burst Wrap Mode - OFF FAST RAM chip Size - 1 Meg by 4 bit Refresh Rate - 238 clocks 8.Temp:> ram:RamseyConfig RamseyConfig 1.2 ?SpeedGeek 2018 Ramsey version = $D Page mode = 1 Burst mode = 1 Wrap mode = 0 Refresh mode = 238 So in your case, if your chips had been static column, "Burst Mode"/"Burst mode" is what should have been enabled with Ramsey -04 and the reason for hanging machine when you enable "Static Column Mode"/"Page mode" is simply because it requires static column memory - you most likely will also get a hang if you enable "Burst Mode". So in a sense I was incorrect by saying that switching to Ramsey -07 would not change anything - as I understand now, it should enable "Static Column Mode"/"Page mode" to work correctly, but it still requires actual static column memory to work. |
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