Memory Upgrade Problem/Slot not Working

I have an HP Pavilion G7-1260us. The laptop came with 4 gigs of memory in one module in one slot. It is upgradeable to 8 gigs, 4 gigs in 2 slots. I purchased a 4 gig memory module, installed it and it didn't work. I figured the system wasn't reading this particular brand on memory so I took it back and got a different brand. The same thing happened. System didn't recognize the memory so I took out the installed memory, put the new one in and it worked. I took that out, put the installed memory in the other slot and it didn't work, so now, I'm fairly sure the slot isn't working. My question is this, if I purchase an 8 gig memory module and install it in the working slot, will that work and will the system show that I have 8 gigs? Or will this system only recognize 8 gigs if it's 2 4 gigs in each slot?
Thanks...
This question was solved.
View Solution.

   Hp Support Assistant should tell you what you have. Open up the HP Support Assistant and go to General Specifications, read down to slots. If it shows two slots then they are obviously functioning. If not, go to Device Manager to ensure that there is no conflict.
    It is also very-very of the utmost importance that the two memory cards are compatible with themselves and with your system's memory speed.. . . Which is? . . . .It is always best to have matching cards with sychronized speeds from a single vendor.
   As for: My question is this, if I purchase an 8 gig memory module and install it in the working slot, will that work and will the system show that I have 8 gigs? Or will this system only recognize 8 gigs if it's 2 4 gigs in each slot?
If your running Windows 7, Yes, your system will recognize and use the entire eight gigs.
If it were a rattler. . . .

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import com.br.kernel.Kernel32;
import com.sun.jna.Memory;
import com.sun.jna.Native;
import com.sun.jna.Pointer;
import com.sun.jna.ptr.IntByReference;
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import com.sun.jna.Pointer;
import com.sun.jna.Structure;
import com.sun.jna.platform.win32.WinDef.RECT;
import com.sun.jna.ptr.ByteByReference;
import com.sun.jna.ptr.IntByReference;
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* @author Todd Fast, [email protected]
* @author [email protected]
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            int type, // image type
            int xDesired, // desired width
            int yDesired, // desired height
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    int GWL_USERDATA = -21;
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    int DWL_USER = 8;
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    int WS_EX_LAYERED = 0x80000;
    int WS_EX_TRANSPARENT = 32;
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    int SetWindowLong(Pointer hWnd, int nIndex, int dwNewLong);
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    int ULW_COLORKEY = 1;
    int ULW_ALPHA = 2;
    int ULW_OPAQUE = 4;
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            byte bAlpha, int dwFlags);
    boolean GetLayeredWindowAttributes(Pointer hwnd,
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            ByteByReference pbAlpha,
            IntByReference pdwFlags);
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        public int x, y;
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        public int cx, cy;
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    int AC_SRC_ALPHA = 0x01;
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        public byte AlphaFormat;
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    int VK_LSHIFT = 0xA0;
    int VK_RSHIFT = 0xA1;
    int VK_CONTROL = 17;
    int VK_LCONTROL = 0xA2;
    int VK_RCONTROL = 0xA3;
    int VK_MENU = 18;
    int VK_LMENU = 0xA4;
    int VK_RMENU = 0xA5;
    boolean GetKeyboardState(byte[] state);
    short GetAsyncKeyState(int vKey);
package com.br.kernel;
import com.sun.jna.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.ptr.IntByReference;
// by deject3d
public interface Kernel32 extends StdCallLibrary
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    //__in   LPVOID lpBaseAddress,
    //__in   LPCVOID lpBuffer,
    //__in   SIZE_T nSize,
    //__out SIZE_T *lpNumberOfBytesWritten
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    //BOOL WINAPI ReadProcessMemory(
    //          __in   HANDLE hProcess,
    //          __in   LPCVOID lpBaseAddress,
    //          __out LPVOID lpBuffer,
    //          __in   SIZE_T nSize,
    //          __out SIZE_T *lpNumberOfBytesRead
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    //HANDLE WINAPI OpenProcess(
    // __in DWORD dwDesiredAccess,
    // __in BOOL bInheritHandle,
    // __in DWORD dwProcessId
    Pointer OpenProcess(int desired, boolean inherit, int pid);
    /* derp */
    int GetLastError();
http://pastebin.com/Vq8wfy39

Hello there,
this tutorial was exactly what I needed, so thank you.
Your problem seems to be in this line:
int writeMemory = writeMemory(writeprocess, address, new short[0x22222222]);
The problem is, you're creating a new short array with the length of 0x22222222. Which not only results in an java.lang.OutOfMemoryError: Java heap space
but also, if it would work, would create an empty array with the length of 0x22222222.
I think you want to write 0x22222222 as value in your address.
Correctly stored the code you'd need to write would be:
short[] sarray = new short[]{(short) 0x22222222};
But because the value is too long for the short, the value stored in your array would be the number 8738.
I think, what you want to do is to store the number 572662306, which would be the hex value, stored in an int variable.
So first of all you need to strip down your hex-value to shorts:
Short in Java uses 16 Bit = 2 Byte. 0x22222222 -> 0x2222 for your high byte and 0x2222 for your low byte
So your array would be
short[] sarray = new short[]{0x2222,0x2222};//notice, that sarray[0] is the lowbyte and sarray[1] the high byte, if you want to store 20 it would be new short[]{20,0} or if you use hex new short[]{0x14,0x00}
The next part is your writeToMemory Method. If I'm right, the method in the tutorial is a little bit wrong. The right version should be this:
public static int writeMemory(Pointer process, int address, short[] data) {
IntByReference written = new IntByReference(0);
int size = data.length*Short.SIZE/8;
Memory toWrite = new Memory(size);
for (int i = 0; i < data.length; i++) {
toWrite.setShort(i*Short.SIZE/8,
data[i]);
boolean b = kernel32.WriteProcessMemory(process, address, toWrite,
size, written);
return written.getValue();
You need to calculate your offset right. And the size of your memory. Maybe you could write this method not with shorts, but with integers. But this should work.
If you pass your new array to this function, it should write 0x22222222 to your adress. If you read out your toWrite value with toWrite.getInt(0) you get the right value.
And there is one more thing. In order to write data to a process, you need to grant two access rights:
A handle to the process memory to be modified. The handle must have PROCESS_VM_WRITE and PROCESS_VM_OPERATION access to the process.
You have to grant the right to write data: PROCESS_VM_WRITE: 0x0020 and PROCESS_VM_OPERATION: 0x0008
So your writeProcess needs to get initialized this way:
Pointer writeprocess = openProcess(0x0020|0x0008,pid);
I hope this works for you. Let me know.
Greetings
Edit:
Because every data you write will be 1 byte to whatever count of byte I think the best way is to use the following method to write data to the memory:
public static void writeMemory(Pointer process, long address, byte[] data)
int size = data.length;
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for(int i = 0; i < size; i++)
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You can see some changes. First I changed all address values from int to long, because some addresses are out of range. And with all, i mean all. Not only in writeMemory, but also in readMemory and in your kernel32 Class.
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public static long findDynAddy(Pointer process, int[] offsets, long baseAddress)
long pointer = baseAddress;
int size = 4;
Memory pTemp = new Memory(size);
long pointerAddress = 0;
for(int i = 0; i < offsets.length; i++)
if(i == 0)
kernel32.ReadProcessMemory(process, pointer, pTemp, size, null);
pointerAddress = ((pTemp.getInt(0)+offsets[i]));
if(i != offsets.length-1)
kernel32.ReadProcessMemory(process, pointerAddress, pTemp, size, null);
return pointerAddress;
This methods gets a process, an array of offsets (hex-values) and your baseadress and returns the dynamic address.
For Solitaire the following code would give you the address to the score:
long baseAddr = 0x10002AFA8L;
int[] offsets = new int[]{0x50,0x14};
long addr = findDynAddy(process, offsets, baseAddr);
If somebody wants to get the whole code (user32, kernel32 and the cheater) just pm me and I will give you a link.

After upgrading IO5 speaker not working

Please advice how to resolve speaker problem after upgrading to IO5, speaker not working and volume bar is missing too.

What Troubleshooting Steps have you tried...
The Basics are Restart... Reset... Restore
Reset your phone:
Press the sleep/wake button & home button at the same time, keep pressing until you see the Apple logo, then release the buttons...
iPhone Reset
http://support.apple.com/kb/ht1430

My Memory Card Reader is not Working...

I was Purchased LENOVO 3000 N200 notebook last month. All devices and working properly. But my MEMORY CARD READER (5 in 1) is not working. I was downloaded drivers and installed in my laptop, but when i'm inserting memory card in to slot it is not showing any message in my laptop. But Green LED is blinking.
Please give me instructions how to use MEMORY CARD READER...
ashok

Although the best way to read your memory card, memory card readers can be a pain. I've had a few I've just thrown out. Make sure the USB connection to the port is fully seated. Make sure the memory card is fully seated in the reader. Do you have an SD card because the reader in the iMac is by far the most reliable I've used.

Ram slots not working after CMOS reset

Im using MSI K9N Neo V2 mb, and it was doing fine until i reseted CMOS. Now 3 out of 4 ram slots are not recognized by BIOS nor Windows. Im sure that ram memory is ok, cause ive checked all of it by replacing it between ram slots, and they're only working in slot nr 4.
I know that the MB is old, but everything was working fine, and suddenly went wrong after CMOS reset
Things i did to fix:
Updated BIOS
Msconfig memory uncheck box
Cleared CMOS with jumper
Replaced CMOS BAT
Checked if smth's wrong with cpu
Cleared RAM slots with rubbing alcohol
System wont even boot without memory in DIMM 4 (ram slot 4), and BIOS only recognizes memory in DIMM 4
This is really frustrating, because there is no reason for smth to not work all of a sudden
Any help? Tnx
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

There is a known issue with Powerbooks with the lower memory slot failing, and it sounds like yours may be starting to fail. At one point there was an Apple recall for a small sliver of Powerbook systems to fix that.
The alternatives are to run with 1GB in the upper slot, try one of the internet vendors that say they can fix that (check references), or install a used logic board. I don't believe Apple is repairing Powerbooks anymore, so if you want to buy a used logic board, you'll need to install it yourself, or perhaps an Apple Authorized Service Provider would be willing to do the work.

Snow Leopard upgrade - Keyboard Letters not working

Since I upgraded to Snow Leopard the CAPS lock key and the letter "p" will not work anymore. Not sure if this is a hardware fault and just coincidence.
Can live without CAPS lock but random letters will cause me an issue. Anybody have similar issues/problems/suggestions?
Thanks

Try resetting your SMC and PRAM.
Resetting the System Management Controller >>
If that does not work, try an external keyboard to test.
Dave M.
MacOSG Founder/Ambassador  An Apple User Group  iTunes: MacOSG Podcast
Macsimum News Associate Editor  Creator of 'Mac611 - Mobile Mac Support'

RAM slot not working

Hey everyone,
I recently bought some RAM for my Mac Book Pro. It came with 1gb, and I bought two 1gb sticks. I put in both sticks of new RAM and my computer would come on but the screen would remain blank. After doing some tests, I found that the lower RAM tray was not working with the old or new RAM stick, and that the upper tray worked with the new and old one. Has this happened to anyone, or anyone have any suggestions on fixes? I tried canned air and it hasn't helped. Currently, I am using the new RAM stick in the upper tray, but would obviously like to take advantage of the lower tray as well.
Thanks!

Sounds like bad news, I'm afraid, Davide. It is likely that the slot itself is damaged. I have seen situations where RAM "reappeared" in the past after an SMC or PRAM reset, but I doubt this is your problem here. Still worth trying, I guess.
Run the Apple Hardware test (on one of the DVDs that originally came with your computer) too, but I suspect it will either need a motherboard repair or replacement.
Rod
(PS - fine surname you have there! )

Memory Upgrade Problem/Slot not Working

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