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worrying if stability test succeeds but winzip extract fails...
"V" wrote in message ... Hi, I've got a PC which passes the prime95 test (W2K blend, running for many tens of hours), and passes memtest86 also running for hours (tested 9 passes). However if I attempt to extract a huge ZIP file 700MB it gives CRC errors always in different places. Memory is PC3200-DDR400 (Kingston - Winbond) CPU is AMD Athlon 2500+ (Barton core) VIA KT600 chipset These are my test results (core voltage 1.65V, RAM voltage: default (1.55V) for all tests). I have repeated these tests several times: CPU FSB 333MHz (1833MHz) - Memory 333MHz: Prime95: pass memtest86: pass Winzip extract: pass CPU FSB 333MHz (1833MHz) - Memory 400MHz: fail Prime95: pass memtest86: pass Winzip extract: FAIL: CRC errors CPU FSB 400MHz (2203MHz) - Memory 333MHz: pass Prime95: pass memtest86: pass Winzip extract: pass CPU FSB 400MHz (2203MHz) - Memory 400MHz: fail Prime95: pass memtest86: pass Winzip extract: FAIL: CRC errors One conclusion I can draw is that prime95 and memtest86 alone are not sufficient to test the stability of a PC... -- V The conclusion I would draw seems pretty clear; your memory has a problem rrunning at 200 MHz. Perhaps the memory timing is too tight, or you need a bit more voltage to the memory for it to run at 200 MHz. 2.55v may be the default, but memory generally requires more to run stable at 200 MHz. It may also be a problem with the chipset. Try increasing chipset voltage if available. |
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"dr_hardwrae" schreef in bericht
et... The conclusion I would draw seems pretty clear; your memory has a problem rrunning at 200 MHz. Perhaps the memory timing is too tight, or you need a bit more voltage to the memory for it to run at 200 MHz. 2.55v may be the default, but memory generally requires more to run stable at 200 MHz. Thanks all for your replies. Increasing SDRAM voltage to 2.65V makes the problem go away... I would not expect these problems with Kingston memory... -- V |
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"V" wrote in message ... "dr_hardwrae" schreef in bericht et... The conclusion I would draw seems pretty clear; your memory has a problem rrunning at 200 MHz. Perhaps the memory timing is too tight, or you need a bit more voltage to the memory for it to run at 200 MHz. 2.55v may be the default, but memory generally requires more to run stable at 200 MHz. Thanks all for your replies. Increasing SDRAM voltage to 2.65V makes the problem go away... I would not expect these problems with Kingston memory... -- V As mentioned, this is pretty common with *all* memory. The Kingston you have uses Winbond chips (excellent chips used with TwinMos memory modules and others), which almost always require 2.65v or more to run at 200 MHz and above. Anyway, glad to hear the problem is resolved. Enjoy! |
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"V" wrote in
: Hi, I've got a PC which passes the prime95 test (W2K blend, running for many tens of hours), and passes memtest86 also running for hours (tested 9 passes). However if I attempt to extract a huge ZIP file 700MB it gives CRC errors always in different places. memtest86 is not really accurate to detect memory stability. Tho it can find memory defect quite sufficient enough. Errored out on extraction usually means your memory timing is too aggressive for your current memory/vdmm voltage. -- Watch your back when it's time to stab. Ken |
#5
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In article ,
says... "V" wrote in : Hi, I've got a PC which passes the prime95 test (W2K blend, running for many tens of hours), and passes memtest86 also running for hours (tested 9 passes). However if I attempt to extract a huge ZIP file 700MB it gives CRC errors always in different places. memtest86 is not really accurate to detect memory stability. Tho it can find memory defect quite sufficient enough. Errored out on extraction usually means your memory timing is too aggressive for your current memory/vdmm voltage. SoundBlaster card?, which MOBO? BoroLad |
#6
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