Memory Recognition I have an MSI MS6547 motherboard the 645E Max series. I have 512MB memory modules from each of three manufacturers Infineon, Kingston, and PNY. I am running XP Home. The computer, on boot up, will recognize that only one of the modules is installed. PC Wizard and CPU-z both recognize the full 1.5GB of installed memory but the computer (Control Panel-System ) says only 512MB is installed. How do I go about getting all of the installed memory recognized. BTW, the 3 memory modules all operate fine if installed one at a time in slot 1.

You can download the drivers from MSI WEB support site, select your model motherboard to download :-
http://www.msi.com/index.php?func=downloadindex

Well the memory is faulty or possibly a bad connection. Try using an Ink erasor to clean up the contacts on the memory. Also a can of compressed air is great for cleaning out the memory slots. Cheers from Scott

dude i dnt think u need any drivers for vista
any way here is the drive link

http://www.msi.com/index.php?func=downloaddetail&type=driver&maincat_no=1&prod_no=499

There are 5 versions of this model
http://global.msi.com.tw/index.php?...
They have either 5 or 6 PCI slots.
Find the version number - beside the model number
Note the SiS main chipset numbers (one may be under a heatsink)

MS-6547 Ver 1.0 a.k.a. 645 Ultra - ATX, 5 PCI slots
http://global.msi.com.tw/index.php?...
SIS® 645 Open Architecture DDR333 Chipset
SIS® 961 MuTIOL® Media I/O Chipset

MS-6547 Ver 2.1 a.k.a. 645 Ultra-C - ATX, 6 PCI slots
http://global.msi.com.tw/index.php?...
SIS® 645 Open Architecture DDR333 Chipset
SIS® 961B MuTIOL® Media I/O Chipset

MS-6547 Ver 2.0 a.k.a. 645E Max - ATX, 6 PCI slots
http://global.msi.com.tw/index.php?...
SIS® 645DX Chipset (under heatsink)
SIS® 961B Chipset

MS-6547E Ver 1.0 a.k.a. 645E Max-C - ATX, 5 PCI slots
http://global.msi.com.tw/index.php?...
SIS® 645DX Chipset
SIS® 961B Chipset

MS-6547 Ver 2.2 (2.1) a.k.a. 645E Max-U - ATX, 6 PCI slots
http://global.msi.com.tw/index.php?...
SIS® 645DX Chipset (under heatsink)
SIS® 962L Chipset

The motherboard does not support 1 GB modules; 512 MB is the maximum the motherboard will recognize. Usually, the computer won't even work if the memory isn't supported but in this case it does.

Thanks and please remember to give this a thumbs up rating.

K8V SE Deluxe DDR400 Memory Qualified Vender List
The following table lists the memory modules that have been tested
and qualified for use with this motherboard.
Size Module Vendor Model Chip Brand
SS/
DS
Chip
256M Micron MT8VDDT3264AG-40BC4 Micron SS MT46V32M8TG-5BC
512M Micron MT16VDDT6464AG-40BC4 Micron DS MT46V32M8TG-5BC
128M Infineon HYS64D16301GU-5-B Infineon SS HYB25D256160BT-5B
256M Infineon HYS64D32300GU-5-B Infineon SS HY25D256160BT-5B
512M Infineon HYS64D32300GU-5-B Infineon DS HY25D256800BT-5B
256M Infineon HYS64D3230HU-5-C Infineon SS HYB25D256800CE-5
512M Infineon HYS64D6320HU-5-C Infineon DS HYB25D256800CE-5
512M Samsung M368L6432ETM-CCC Samsung DS K4H560838E-TCCC
256M ATP AG32L64T8SQC4S Samsung SS K4H560838D-TCC4
256M Brain Power B6U808-256M-SAM-400 Samsung SS K4H560838D-TCC4
512M Brain Power B6U808-512M-SAM-400 Samsung DS K4H560838D-TCC4
512M Apacer 77.10736.464 Samsung DS K4H560838D-TCC4
256M ADATA MDOSS6F3G31YK1EZZ Samsung SS K4H560838D-TCC4
128M NANYA NT128D64SH4B1G-5T NANYA SS NT5DS16M16BT-5T
512M NANYA N512D64S8HB1G-5T NANYA DS NT5DS32M8BT-5T
256M Hynix HYMD232646B8J-D43 AA Hynix SS HY5DU56822BT-D43
256M Kingston KVR400X64C3A/256 Hynix SS HY5DV56822BT-D43
512M Kingston KVR400X64C3A/512 Hynix DS HY5DV56822BT-D43
512M Winbond W9451GCDB-5 Winbond DS W942508CH-5
256M Kingston KVR400X64C25/256 Winbond SS W942508BH-5
256M ADATA MDOWBFF3G31JB1EAE Winbond SS W942508BH-5
512M TwinMOS M2G9J16AGATT9F081AA4T TwinMOS DS TMD7608F8E50D
256M TwinMOS M2S9I08AFAPS9F0811A-T PSC SS A2S56D30ATP
256M KINGMAX MPXB62D-38KT3R KINGMAX SS KDL388P4EA-50
512M KINGMAX MPXC22D-38KT3R KINGMAX DS KDL388P4EA-50A
256M CORSAIR CMX256A-4000 XMS4000V1.1 CORSAIR SS
ive found the best prices at tigerdirect.com and they ship it right to your door. make sure the tiger ppl have the exact match and dont replace your order with more expensive replacements as some of these substitutions require voltages that your motherboard CAN NOT produce and will not work.. you also want to make sure to buy low density ram, it performs better, is a few bucks more than high density, but worth EVERY penny. E-bay is notorious for selling cheap high density ram on thier site.
If you stick to the list above, you shouldnt have any issues.
This should fixya up! please rate...

Hi mastelmkd, click on this link;
http://global.msi.com.tw/index.php?func=prodcpusupport&prod_no=499&maincat_no=1#menu
This is MSI's link for supported CPU's for the 645E Max-U motherboard. Check you're bios version. You'll need ver 5.3 to run the Pentium 4 (Northwood, FSB533, L2 Cache 512KB), Pentium 4, 2.8GHz CPU. Or you can choose a lower CPU from the list. Suggest you add the link above to you're favorites.

Good luck mastelmkd!
Mike

you reset the bios.

Hello grimeric, did not find a quick guide only the manual.

Web site for MSI 645E Max-U main page. Click on the link.
http://www.msicomputer.com/product/p_spec.asp?model=645E_Max-U&class=mb

For the motherboard user manual, click on the next link.
http://global.msi.com.tw/index.php?func=downloadfile&dno=3572&type=manual

Good Luck!

Mike

If your manual states a max of 2.2GHZ then, take it as that, when your board was made the bios and bus speeds would be set at the maximum to run a 2.2GHZ, not a 3GHZ, also the heat sink and fan may not be enough to cool the processor. The only way that a 3GHZ would run was if you updated the bios and personally i would not recommend it. You would be better advised updating the board and processor as a package ot fitting more memory if the pc is not used for gaming or high end video editing.