Monitored Alarm Systems

This month, the doctor treats errors ram, attacking different units, and more

Aa> Errors on the rampage?

Five years ago, I built a team that has performed smoothly. I put in a motherboard 775 DP965LT Intel, Intel Core 2 Duo E6700 processor, EVGA GeForce 8800 GTS video card, two 500GB Western Digital, Toshiba DVD of two units, and two sticks of 1 GB of memory DDR2/667 crucial. Compared to today's standards, the machine is old but it was fine for my needs.

not let go on a rampage

Earlier this year, I decided to increase my memory, 2GB Crucial DDR2/667 adding two sticks to make my system memory from 2GB to 6GB system I showed 6 GB of memory. Then I noticed that even though it was much faster, I had problems with the system. Think my problems could be related to the heat, I started running SIW (System Information for Windows) and found that the base temperature (in my opinion) high. Most readings are between 58 and 65 ? C, with occasional peak around 80 ? C. (There is an air cooling system with fan value.) Then remove the two new memory sticks and memory system has fallen to 2 GB. Problems were, but temperatures remained in the range of 58 to 65 C. Then he took the two sticks of origin (total 2GB) and put the two new sticks (total 4 GB) and back problems. Thinking about my problem could be the new memory, I ran all night twice Memtest86 +, no errors reported the next day. But the problem occurs only with the two new sticks.

'm running Windows 7 and the problems I found is that the MMC or the Windows Explorer or the Windows desktop does not work, or if you can not start Outlook 2010. This occurs within one to four hours after a cold start. Most of the time, it is in the first hour. If I reboot, no more problems with cold start until the next. I ran the system for several days after a reboot without error. My question is, do you have any idea what is wrong and how can I solve this problem? I guess it is a matter of temperature, as it will run smoothly for several days after a reboot.

- Howard Lewis

The doctor answers:

While most motherboards should be fine with all correct RAM form factor, speed and capacity, you should always check the RAM is used in the list of qualified manufacturers of motherboards if you having memory problems. The doctor is not sure what the model wears DDR2/667 crucial, but QVL for your motherboard has more than 2 GB DIMMs suggested by the manufacturer at this clock speed, so it should work. Intel also plate run up to 8GB of RAM, so building should not be a problem.

Given your problem, however, it seems that the new RAM is the problem. You do not say if you are running Windows 32-bit or 64-bit, but given the age of your system, chances are that you are running 32-bit, which can support up to four GB of RAM, with a little shattered by the address space devices. Running 6 GB with 32-bit Windows 7 is bit of a waste, but should not be the problem.

tried to run the old and new RAM RAM and the new RAM only, but also must prove each new piece of RAM to determine if a stick is bad. If the RAM is good, it is very possible that the BIOS is not reading the Serial Presence Detect chip RAM correctly. The SPD map shows how many times the voltage and time to run the module housing. Normally when you mix and match RAM, the card is set all RAM to slowest RAM installed, but it simply can not be read correctly. Doc has seen many times on the boards LGA775 vintage, but more often on motherboards that time setting RAM play fast and loose. Intel tend to err on the side of stability, but older BIOS may cancel the configuration RAM. Consider updating your BIOS only two DIMMs age in place. If you continue to have problems, enter your BIOS and manually set the RAM timing, voltage and frequency.

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