Memory problem on AX59pro

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Stedman5040
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Memory problem on AX59pro

Post by Stedman5040 »

I have an AX59pro and have up to now run quite happily with 3x128MB memory modules. I have acquired some 256MB modules and tried them in this board.

If I plug in any of the 256mb modules into the board by themselves in any of the 3 positions or with a single 128mb module giving 384mb everything works fine.

If I plug in 512mb or greater of any combination of 256mb and 128mb modules the system crashes on loading to windows. The system will quite happily load into safe mode, but not into windows.

This happens even when using the slackest of memory timings. Using 256mb or 384mb of the same memory I can select very aggressive memory timings with no crashes.

All of the modules I have tried are pc133 Hynix low density CL2 and CL3. I have tried the same 3x256mb hynix pc133 cl2 modules in my P5A board and get no problems at all loading into Windows.

Aopen's website claims up to 256mb modules for their board, but none were tested in their compatibility tests.

Any ideas??? :?
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RE: Memory problem on AX59pro

Post by Jim »

Don't know if this applies to your board; but some early Super 7 QDI's that I had , had a max memory support level of 384 Meg.
Last edited by Jim on Fri Jun 16, 2006 7:36 pm, edited 1 time in total.
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Stedman5040
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Post by Stedman5040 »

Hi Jim,

According to the manual Aopen claim up to 1Gb of ram through the 3xdimm slots and 2xsimm slots. Please note that I have not seen any data from them to confirm that the board runs with anything near that amount of memory.

At the moment 384mb seems to be the limit. I might try to add a 64mb to the 256 and the 128 configuration to give 448mb a try.

I got hold of a K6-III+/500anz which I plugged into the P5A. I shall see how much mileage this cpu can give with the 768mb of cl2 ram.

Stedman :wink:
DonPedro
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Post by DonPedro »

hi stedman,

when you get into into windows in safe mode, but fail to load windows in normal mode then I would guess some entry in the various autostart-places is the culprit. I would therefore try to set those entries to disabled. then step by step re-enable them to find the one that is causing the trouble.

you can find such a tool right here
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KachiWachi
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Post by KachiWachi »

AX59 Pro is an MVP3 (with a 586B).

The MVP3 only understands 16Mb and 64Mb Technology chips (6 rows, 768MB total RAM).

The board has three RAM slots.

64Mbit * 1 Byte/8 bits * 16 chips = 128MB (module) per slot * 3 slots = 384MB Max.

http://www.via.com.tw/en/products/apollo/mvp3.jsp

(Something here doesn't make sense...will have to check things once I'm home.)
Last edited by KachiWachi on Fri Jun 16, 2006 3:40 pm, edited 2 times in total.
Moderator - Wim's BIOS

PC #1 - DFI 586IPVG, K6-2/+ 450 (Cyrix MII 433), 128 MB EDO. BIOS patched by Jan Steunebrink.
PC #2 - Amptron PM-7900 (M520), i200 non-MMX, 128 MB EDO
PC #3 - HP8766C, PIII-667, 768 MB SDRAM
PC #4 - ASUS P3V4X, PIII-733, 256 MB SDRAM
PC #5 - Gateway 700X, P4-2.0 GHz, 768 MB PC800 RDRAM
PC #6 - COMPAQ Evo N1020v laptop, P4-2.4 GHz, 1 GB PC2700 DDR
PC #7 - Dell Dimension 4600i, P4-2.8 GHz, 512 MB PC2700 DDR
PC #8 - Acer EeePC netbook, Atom N270 @ 1.60 GHz, 1 GB RAM
PC #9 - ??? ;)
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Stedman5040
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Post by Stedman5040 »

I don't understand how Aopen come up with 1Gb max ram. The board essentially has 3 dimms and 2 simms and if these are all fully occupied with 3x256mb in the dimms and 2x128mb in the simms you get 1Gb. However they also state that if you use the simm slots then bank 2 of dimm slot 3 cannot be used by the dimm. So inthis case only a single bank dimm can be used in slot3 if you use the simm slots.

It appears to be all academic anyway as I cannot get the board to take more than 384mb of ram at the moment anyway and be stable into windows.


Stedman :(
DonPedro
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Post by DonPedro »

again, stedman, if you can boot happily into windows safe mode with 512mb ram installed then your board is technically in the position to accept more than 384mb ram.

safe mode strips the system of some drivers (obviously the one for the graphics) and avoids loading those user-programs defined at the various autostart-places.

did you try to deactivate all those autostart-entries as I mentioned in my former post?
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Stedman5040
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Post by Stedman5040 »

@ Donpedro

Sorry I didn't see the post. I will give it a try tonight and see if I can track down the problem.

Stedman
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KachiWachi
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Post by KachiWachi »

OK...

@64Mbit, you can use a x4, x8 and x16 SDRAM -

64Mbit * 4 / 8 = 32 MB * 3 slots = 96 MB Total
64Mbit * 8 / 8 = 64 MB * 3 slots = 192 MB Total
64Mbit * 16 / 8 = 128 MB * 3 slots = 384 MB Total

but only 4-bank x32 -

64Mbit * 32 / 8 = 256 MB * 3 slots = 768 MB Total
Moderator - Wim's BIOS

PC #1 - DFI 586IPVG, K6-2/+ 450 (Cyrix MII 433), 128 MB EDO. BIOS patched by Jan Steunebrink.
PC #2 - Amptron PM-7900 (M520), i200 non-MMX, 128 MB EDO
PC #3 - HP8766C, PIII-667, 768 MB SDRAM
PC #4 - ASUS P3V4X, PIII-733, 256 MB SDRAM
PC #5 - Gateway 700X, P4-2.0 GHz, 768 MB PC800 RDRAM
PC #6 - COMPAQ Evo N1020v laptop, P4-2.4 GHz, 1 GB PC2700 DDR
PC #7 - Dell Dimension 4600i, P4-2.8 GHz, 512 MB PC2700 DDR
PC #8 - Acer EeePC netbook, Atom N270 @ 1.60 GHz, 1 GB RAM
PC #9 - ??? ;)
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Uranium235
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Post by Uranium235 »

I just tested two 256MB sticks of Crucial PC133 successfully in an AX59Pro tonight in slots 1 and 2, all timings at tightest settings.

Here's the sticks I used: CT32M64S4D7E
http://www.crucial.com/store/partspecs. ... 32M64S4D7E

My AX59Pro doesn't appear to have any problem handling two 256MB sticks. Do you have an exact matched pair you can test in your machine? You don't have bank interleaving enabled, do you? Do you have BIOS version R2.36 installed?
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KachiWachi
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Post by KachiWachi »

CT32M64S4D7E

These are 32M x64 (32M64) and most likely 4-bank (S4).

What chips are on the modules?
Moderator - Wim's BIOS

PC #1 - DFI 586IPVG, K6-2/+ 450 (Cyrix MII 433), 128 MB EDO. BIOS patched by Jan Steunebrink.
PC #2 - Amptron PM-7900 (M520), i200 non-MMX, 128 MB EDO
PC #3 - HP8766C, PIII-667, 768 MB SDRAM
PC #4 - ASUS P3V4X, PIII-733, 256 MB SDRAM
PC #5 - Gateway 700X, P4-2.0 GHz, 768 MB PC800 RDRAM
PC #6 - COMPAQ Evo N1020v laptop, P4-2.4 GHz, 1 GB PC2700 DDR
PC #7 - Dell Dimension 4600i, P4-2.8 GHz, 512 MB PC2700 DDR
PC #8 - Acer EeePC netbook, Atom N270 @ 1.60 GHz, 1 GB RAM
PC #9 - ??? ;)
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Uranium235
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Post by Uranium235 »

Micron chips.
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KachiWachi
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Post by KachiWachi »

Um...OK...Yeah...Crucial is a part of Micron, so I assumed that. :roll:

Any more digits?
Moderator - Wim's BIOS

PC #1 - DFI 586IPVG, K6-2/+ 450 (Cyrix MII 433), 128 MB EDO. BIOS patched by Jan Steunebrink.
PC #2 - Amptron PM-7900 (M520), i200 non-MMX, 128 MB EDO
PC #3 - HP8766C, PIII-667, 768 MB SDRAM
PC #4 - ASUS P3V4X, PIII-733, 256 MB SDRAM
PC #5 - Gateway 700X, P4-2.0 GHz, 768 MB PC800 RDRAM
PC #6 - COMPAQ Evo N1020v laptop, P4-2.4 GHz, 1 GB PC2700 DDR
PC #7 - Dell Dimension 4600i, P4-2.8 GHz, 512 MB PC2700 DDR
PC #8 - Acer EeePC netbook, Atom N270 @ 1.60 GHz, 1 GB RAM
PC #9 - ??? ;)
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Uranium235
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Post by Uranium235 »

OK, here's the markings on the chips: 48LC16M8A2 TG-7E

There's 16 chips, 8 per side.

There is a Micron part number on the label as well:
MT16LSDT3264AG-13EE3 PC133U-222-542-A
256MB, Synch, 133Mhz, CL2

This RAM has worked in every motherboard I've ever tried them in. Great stuff. Got it from ebay cheap. Sorry to be so vague before, I was in a hurry. :wink:

Here's a link with the datasheets for this RAM:
http://www.micron.com/products/partdeta ... 3264AG-13E

Here's the same sticks I have:
http://cgi.ebay.com/Two-2-256MB-Crucial ... dZViewItem
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KachiWachi
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Post by KachiWachi »

OK - 48LC16M8A2TG-7E

http://www.micron.com/products/partdeta ... 6M8A2TG-7E
http://download.micron.com/pdf/datashee ... MSDRAM.pdf

Chips are 16Mb x8 (4Meg x8 x4-bank), 128Mb (12x10 4-bank addressing).

Legit combination.

Code: Select all

16Mb 11x10, 11x9, and 11x8 configurations supported

64Mb x4: 12x10 4bank, 13x10 2bank
     x8: 12x9 4bank, 13x9 2bank
    x16: 12x8 4bank, 13x8 2bank
    x32: 11x8 4bank
Moderator - Wim's BIOS

PC #1 - DFI 586IPVG, K6-2/+ 450 (Cyrix MII 433), 128 MB EDO. BIOS patched by Jan Steunebrink.
PC #2 - Amptron PM-7900 (M520), i200 non-MMX, 128 MB EDO
PC #3 - HP8766C, PIII-667, 768 MB SDRAM
PC #4 - ASUS P3V4X, PIII-733, 256 MB SDRAM
PC #5 - Gateway 700X, P4-2.0 GHz, 768 MB PC800 RDRAM
PC #6 - COMPAQ Evo N1020v laptop, P4-2.4 GHz, 1 GB PC2700 DDR
PC #7 - Dell Dimension 4600i, P4-2.8 GHz, 512 MB PC2700 DDR
PC #8 - Acer EeePC netbook, Atom N270 @ 1.60 GHz, 1 GB RAM
PC #9 - ??? ;)
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